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10cm Black Red Cable Connection 9V Battery Clips Connector Buckle
Description:
-This is 9V T-Fonts Hard Shell Battery Clip Connector. 
-Unique design and high quality. 
-Save power and protect environment. 
-T-fonts, with red and black connecting lines
-Excellent material, fine workmanship
-It is an environmental 9V battery buckle
 
Specification :
-Buckle Material : Copper
-Type : T Shape
-Voltage : 9V
-Wire Length : 15cm
Package Includes:
10 Pcs Battery Clip Connectors

 
DC-DC 2A Booster Board Step-up Module Input 2/24V to 5/9/12/28V Replace XL6009

 
 
Description:
Module Highlights:
The whole network the smallest adjustable boost module can be easily installed in a variety of small equipment inside.
MicroUSB input can be used with a USB charger or mobile power supply through the phone line can easily get 9V, 12V, 15V, 18V, 24V voltage common, easy to use.
Wide input and output voltage, high conversion efficiency.
Module features:
1. Maximum output current: 2A (recommended in 1A)
2. Input voltage: 2 v - 24 v
3. Maximum output voltage:> 28 v (recommended in 26V)
4. Efficiency:> 93% (efficiency of input and output pressure related)
5. Size: 30mm * 17mm * 14mm (L * W * H)
Precautions:
1. This module is a step-up module, the output voltage is greater than the input voltage
2. Peak current output current does not exceed 2A
 
Packing list:
1 Pcs DC-DC 2A Booster Board Step-up Module
 

RGB LED Ring 12 Bits WS2812 WS2812B 5050 RGB LED Spot Integrated Driver Control Serial Module for Arduino I2C Controller
 
 
Description:
Voltage:DC4-7V
Communication  interface:Single-wire communication
LED Chip:WS2812B
Conncetion:
5V to 5V
pin 6 to DI
GND to GND
Package Included:
1 Pcs 1 12 Bit WS2812 5050 RGB LED
 

0.36 Inch Mini LCD Display Voltmeter Ammeter Voltimetro Amperimet Digital DC 2.5-30V Red LED Mini Digital Voltmeter Ammeter
 
Description
100% Brand new and high quality
Mounting Holes: 28mm
Range: DC 2.5-30V two-wire access
Display: three 0.36 inch LED digital tube
Display color: Red
Refresh rate: about 500mS /time
Measuring accuracy: 1% ( / - 1 digit)
Power Supply: DC 2.5-30V (line) with the input common
Operating temperature: -10 ~ 65℃
Net Weight: About 5g
Color: As the picture
Dimension: Approx. 23x15x10mm (without mounting ears)
Cord Length: Approx. 150mm
Package Included
1 Pcs Digital Volt Meter
 

0.36 Inch Mini LCD Display Voltmeter Ammeter Voltimetro Amperimet Digital DC 2.5-30V Red LED Mini Digital Voltmeter Ammeter
 
Description
100% Brand new and high quality
Mounting Holes: 28mm
Range: DC 2.5-30V two-wire access
Display: three 0.36 inch LED digital tube
Display color: Red
Refresh rate: about 500mS /time
Measuring accuracy: 1% ( / - 1 digit)
Power Supply: DC 2.5-30V (line) with the input common
Operating temperature: -10 ~ 65℃
Net Weight: About 5g
Color: As the picture
Dimension: Approx. 23x15x10mm (without mounting ears)
Cord Length: Approx. 150mm
Package Included
1 Pcs Digital Volt Meter
 

0.36 Inch Mini LCD Display Voltmeter Ammeter Voltimetro Amperimet Digital DC 2.5-30V Red LED Mini Digital Voltmeter Ammeter
 
Description
100% Brand new and high quality
Mounting Holes: 28mm
Range: DC 2.5-30V two-wire access
Display: three 0.36 inch LED digital tube
Display color: Red
Refresh rate: about 500mS /time
Measuring accuracy: 1% ( / - 1 digit)
Power Supply: DC 2.5-30V (line) with the input common
Operating temperature: -10 ~ 65℃
Net Weight: About 5g
Color: As the picture
Dimension: Approx. 23x15x10mm (without mounting ears)
Cord Length: Approx. 150mm
Package Included
1 Pcs Digital Volt Meter
 

93PR10KLF Glass Glaze Potentiometer 93PR10K with Scale 93PR103
 
  
 
Description
Part Number :93PR10KLF
Datasheets : Model 93
Product Photos : 93 Series
RoHS Information : Cert. of Compliance
Standard Package : 50
Category : Potentiometers Variable Resistors
Family : Trimmer Potentiometers
Series : 93
Resistance (Ohms) : 10K
Power (Watts) : 1W
Tolerance : ±10%
Temperature Coefficient : ±100ppm/°C
 
Package Included
1 Pcs 93PR10KLF glass glaze potentiometer

93PR10KLF Glass Glaze Potentiometer 93PR10K with Scale 93PR103
 
  
 
Description
Part Number :93PR10KLF
Datasheets : Model 93
Product Photos : 93 Series
RoHS Information : Cert. of Compliance
Standard Package : 50
Category : Potentiometers Variable Resistors
Family : Trimmer Potentiometers
Series : 93
Resistance (Ohms) : 10K
Power (Watts) : 1W
Tolerance : ±10%
Temperature Coefficient : ±100ppm/°C
 
Package Included
1 Pcs 93PR10KLF glass glaze potentiometer

93PR10KLF Glass Glaze Potentiometer 93PR10K with Scale 93PR103
 
  
 
Description
Part Number :93PR10KLF
Datasheets : Model 93
Product Photos : 93 Series
RoHS Information : Cert. of Compliance
Standard Package : 50
Category : Potentiometers Variable Resistors
Family : Trimmer Potentiometers
Series : 93
Resistance (Ohms) : 10K
Power (Watts) : 1W
Tolerance : ±10%
Temperature Coefficient : ±100ppm/°C
 
Package Included
1 Pcs 93PR10KLF glass glaze potentiometer

 
 
Wired Connector 1.5V AAA Battery Holder Plastic Case Storage Box Black
Description
Battery type: 1 x AAA battery case Holder.
AAA Battery Holder Case with two wire leads for soldering / connecting.
Keep your batteries organized and protected
Lead Cable Length:Approx.16cm
Dimension:Approx. 49mm x 12mm x 10mm.(L*W*H)
Main Material: Plastic
Color: Black
Package Included
1 Pcs Single Slot AAA Mobile Battery Clip Case
 

 
18650 Li-ion Battery Insulation Gasket Barley Paper Battery Pack Cell Insulating Glue Patch Electrode Insulated Pads
 
           
 
Description
100% brand new and high quality
1.Good insulation, flexibility, water resistance, wear resistance, oil resistance, aging resistance, good gap material.
2.It has the functions of insulation, shielding and anti-interference, providing high electrical insulation, mechanical strength, softness and elasticity.
3.It is especially resistant to the corrosion of acid and alkali, tear resistance and wear resistance.Tear strength, rupture work and dynamic strength are very high.
4.Hollow insulation pad for 18650 battery Anode point.
5.Ensure that surface is clean, dry, free of grease, oil or other contaminants before applying the insulation pad.
 
Specifications:
Color:Green
Suitable for 18650 battery Anode point
Material:Barley Paper
 
Package Included
1 Slice 18650 Battery Insulation Gasket
 

 
18650 Li-ion Battery Insulation Gasket Barley Paper Battery Pack Cell Insulating Glue Patch Electrode Insulated Pads
 
           
 
Description
100% brand new and high quality
1.Good insulation, flexibility, water resistance, wear resistance, oil resistance, aging resistance, good gap material.
2.It has the functions of insulation, shielding and anti-interference, providing high electrical insulation, mechanical strength, softness and elasticity.
3.It is especially resistant to the corrosion of acid and alkali, tear resistance and wear resistance.Tear strength, rupture work and dynamic strength are very high.
4.Hollow insulation pad for 18650 battery Anode point.
5.Ensure that surface is clean, dry, free of grease, oil or other contaminants before applying the insulation pad.
 
Specifications:
Color:Green
Suitable for 18650 battery Anode point
Material:Barley Paper
 
Package Included
1 Slice 18650 Battery Insulation Gasket
 

 
18650 Li-ion Battery Insulation Gasket Barley Paper Battery Pack Cell Insulating Glue Patch Electrode Insulated Pads
 
           
 
Description
100% brand new and high quality
1.Good insulation, flexibility, water resistance, wear resistance, oil resistance, aging resistance, good gap material.
2.It has the functions of insulation, shielding and anti-interference, providing high electrical insulation, mechanical strength, softness and elasticity.
3.It is especially resistant to the corrosion of acid and alkali, tear resistance and wear resistance.Tear strength, rupture work and dynamic strength are very high.
4.Hollow insulation pad for 18650 battery Anode point.
5.Ensure that surface is clean, dry, free of grease, oil or other contaminants before applying the insulation pad.
 
Specifications:
Color:Green
Suitable for 18650 battery Anode point
Material:Barley Paper
 
Package Included
1 Slice 18650 Battery Insulation Gasket
 

 
18650 Li-ion Battery Insulation Gasket Barley Paper Battery Pack Cell Insulating Glue Patch Electrode Insulated Pads
 
           
 
Description
100% brand new and high quality
1.Good insulation, flexibility, water resistance, wear resistance, oil resistance, aging resistance, good gap material.
2.It has the functions of insulation, shielding and anti-interference, providing high electrical insulation, mechanical strength, softness and elasticity.
3.It is especially resistant to the corrosion of acid and alkali, tear resistance and wear resistance.Tear strength, rupture work and dynamic strength are very high.
4.Hollow insulation pad for 18650 battery Anode point.
5.Ensure that surface is clean, dry, free of grease, oil or other contaminants before applying the insulation pad.
 
Specifications:
Color:Green
Suitable for 18650 battery Anode point
Material:Barley Paper
 
Package Included
1 Slice 18650 Battery Insulation Gasket
 

 
18650 Li-ion Battery Insulation Gasket Barley Paper Battery Pack Cell Insulating Glue Patch Electrode Insulated Pads
 
           
 
Description
100% brand new and high quality
1.Good insulation, flexibility, water resistance, wear resistance, oil resistance, aging resistance, good gap material.
2.It has the functions of insulation, shielding and anti-interference, providing high electrical insulation, mechanical strength, softness and elasticity.
3.It is especially resistant to the corrosion of acid and alkali, tear resistance and wear resistance.Tear strength, rupture work and dynamic strength are very high.
4.Hollow insulation pad for 18650 battery Anode point.
5.Ensure that surface is clean, dry, free of grease, oil or other contaminants before applying the insulation pad.
 
Specifications:
Color:Green
Suitable for 18650 battery Anode point
Material:Barley Paper
 
Package Included
1 Slice 18650 Battery Insulation Gasket
 

 
18650 Li-ion Battery Insulation Gasket Barley Paper Battery Pack Cell Insulating Glue Patch Electrode Insulated Pads
 
           
 
Description
100% brand new and high quality
1.Good insulation, flexibility, water resistance, wear resistance, oil resistance, aging resistance, good gap material.
2.It has the functions of insulation, shielding and anti-interference, providing high electrical insulation, mechanical strength, softness and elasticity.
3.It is especially resistant to the corrosion of acid and alkali, tear resistance and wear resistance.Tear strength, rupture work and dynamic strength are very high.
4.Hollow insulation pad for 18650 battery Anode point.
5.Ensure that surface is clean, dry, free of grease, oil or other contaminants before applying the insulation pad.
 
Specifications:
Color:Green
Suitable for 18650 battery Anode point
Material:Barley Paper
 
Package Included
1 Slice 18650 Battery Insulation Gasket
 

1x 2x 3x 4x AAA Battery Box Case Holder with Wire Leads Side By Side Battery Box Connecting Solder for 1-4pcs AAA Batteries
 
      
 
Description
1 AAA 1.5V:
Product Name : Battery Holder;
Fit for : 1 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 1.5V;
Dimension : 5.1 x 1.3 x 1.1cm / 2" x 0.5" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
2 AAA 3.0V:
Product Name : Battery Holder;
Fit for : 2 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 3.0V;
Dimension : 5.1 x 2.3 x 1.1cm / 2" x 0.9" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
3 AAA 4.5V:
Product Name : Battery Holder;
Fit for : 3 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 4.5V;
Dimension : 5.1 x 3.5 x 1.1cm / 2" x 1.4" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
4 AAA 6.0V:
Product Name : Battery Holder;
Fit for : 4 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 6.0V;
Dimension : 5.1 x 4.9 x 1.1cm / 2" x 1.9" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
 
Package Included
1 Pcs AAA Battery Box
 

1x 2x 3x 4x AAA Battery Box Case Holder with Wire Leads Side By Side Battery Box Connecting Solder for 1-4pcs AAA Batteries
 
      
 
Description
1 AAA 1.5V:
Product Name : Battery Holder;
Fit for : 1 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 1.5V;
Dimension : 5.1 x 1.3 x 1.1cm / 2" x 0.5" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
2 AAA 3.0V:
Product Name : Battery Holder;
Fit for : 2 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 3.0V;
Dimension : 5.1 x 2.3 x 1.1cm / 2" x 0.9" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
3 AAA 4.5V:
Product Name : Battery Holder;
Fit for : 3 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 4.5V;
Dimension : 5.1 x 3.5 x 1.1cm / 2" x 1.4" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
4 AAA 6.0V:
Product Name : Battery Holder;
Fit for : 4 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 6.0V;
Dimension : 5.1 x 4.9 x 1.1cm / 2" x 1.9" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
 
Package Included
1 Pcs AAA Battery Box
 

1x 2x 3x 4x AAA Battery Box Case Holder with Wire Leads Side By Side Battery Box Connecting Solder for 1-4pcs AAA Batteries
 
      
 
Description
1 AAA 1.5V:
Product Name : Battery Holder;
Fit for : 1 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 1.5V;
Dimension : 5.1 x 1.3 x 1.1cm / 2" x 0.5" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
2 AAA 3.0V:
Product Name : Battery Holder;
Fit for : 2 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 3.0V;
Dimension : 5.1 x 2.3 x 1.1cm / 2" x 0.9" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
3 AAA 4.5V:
Product Name : Battery Holder;
Fit for : 3 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 4.5V;
Dimension : 5.1 x 3.5 x 1.1cm / 2" x 1.4" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
4 AAA 6.0V:
Product Name : Battery Holder;
Fit for : 4 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 6.0V;
Dimension : 5.1 x 4.9 x 1.1cm / 2" x 1.9" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
 
Package Included
1 Pcs AAA Battery Box
 

1x 2x 3x 4x AAA Battery Box Case Holder with Wire Leads Side By Side Battery Box Connecting Solder for 1-4pcs AAA Batteries
 
      
 
Description
1 AAA 1.5V:
Product Name : Battery Holder;
Fit for : 1 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 1.5V;
Dimension : 5.1 x 1.3 x 1.1cm / 2" x 0.5" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
2 AAA 3.0V:
Product Name : Battery Holder;
Fit for : 2 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 3.0V;
Dimension : 5.1 x 2.3 x 1.1cm / 2" x 0.9" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
3 AAA 4.5V:
Product Name : Battery Holder;
Fit for : 3 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 4.5V;
Dimension : 5.1 x 3.5 x 1.1cm / 2" x 1.4" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
4 AAA 6.0V:
Product Name : Battery Holder;
Fit for : 4 x 1.5V AAABattery(Not Included Here)
Fit Battery Power : DC 6.0V;
Dimension : 5.1 x 4.9 x 1.1cm / 2" x 1.9" x 0.43" (L*W*H)
Wire Length : 15cm/5.9";
Material : Plastic
Color : Black;
 
Package Included
1 Pcs AAA Battery Box
 

 
HY-SRF05 SRF05 Ultrasonic Distance Sensor Module 5Pin DC 5V for Arduino UNO Replace SR04 Electronic Brick Compatible Interface
 
 
Description
Detecting range: 3cm-4M
Best in 30 degree angle
Electronic brick compatible interface
5VDC power supply
Breadboard friendly
Dual transducer
Uno library ready
Specification:
Working Voltage: 5V (DC)
Static current: Less than 2mA.
Output signal: Electric frequency signal, high level 5V, low level 0V
Sensor angle: Not more than 15 degrees.
Detection distance: 2cm-450cm.
High precision: Up to 0.3cm
Working tempter:-20C___ 60C
Weight: 10
Size: 45x 21mm (L x W)
Connector Pin:
VCC
Trig (T)
Echo(R)
OUT
GND
 
Package Included
1 Pcs HY-SRF05 Ultrasonic Ranging Sensor Module

New Power bank 18650 Battery Holder Plastic Battery Holder Storage Box Case for 4x18650 With DC5.5 * 2.1mm power plug
Description:
100% Brand New and High Quality
Its small size, moderate capacity, in many small appliances and digital products widely used.
ROHS / REACH EU environmental standards, 6P no o-benzene, UL94V-0 flame retardant
 
Specifications:
Product model:4x18650 Battery Box
Color:Transparent
Material:Plastic
DC Plug:5.5*2.1
Net Weight:30g
Package included:
1 Pcs 18650 battery storage box
 

Note: The atomizing sheet cannot be directly connected to electricity, it needs to be used on the control panel before it can be sprayed
25MM Ultrasonic Atomizer Energy Exchange Slice Ultrasonic Atomizer Accessories Atomizing Head Humidifier Nozzle

 
High Quality 2 18650 Battery Holder THM with Pins 18650 Battery Storage Box TBH-18650-1C-THM
 
Description
100% Brand New and High Quality
Its small size, moderate capacity, in many small appliances and digital products widely used.
Specifications:
Item:2slot 18650 Battery Storage Holder
Support Model :18650 Battery
Shell material: ABS fire, flame retardant, high temperature, color diversity and other materials for choice.
Metal spring: carbon steel nickel plating by NCAA salt spray test, stainless steel spring.
Size:77.1MM*39.8MM*14.90MM
 
Package Included
1 Pcs 18650 Battery Holder
 

 
PAM8403 5V Power Audio Amplifier Board 2 Channel 3W W Volume Control / USB Power
 

 
Description:
PAM8403 small mini 5 v digital power amplifier board (can be USB powered) (XY) board USES PAM8403 digital power amplifier chip, circuit is simple, reliable work.Working voltage of 2.5 V to 2.5 V, 3 wx2 maximum output, efficiency can achieve 90% above, can use computer USB 5 V power supply, is very suitable for battery and portable electronic products.Bat small size, and is equipped with switch, potentiometer, can follow one's inclinations of the volume, and control the power switch to use and install is very flexible and convenient.Using devices all use the real thing, can be competent for long-term stability.
 
Operating voltage: 2.5 V to 2.5 V
Maximum output: 3 wx2 (5 v 4 o)
Board size: about 22 mm 30 mm wide/deep/high 16 mm excluding potentiometer handle bulge (dimension) boards are finished plate welding test, the above potentiometer is with switch, can control the volume and power switch, not more than 5.5 V, working voltage power supply positive and negative don't wrong, otherwise the chip has the potential to damage.
 
Package Included:
1 Pcs PAM8403 Amplifier Board
 

 
 
External USB Audio Sound Card Adapter 7.1 Virtual Channel With Cable Microphone 3.5mm Interface Sound Cards
 

 
Description:
Easy to use, No drivers required, Plug and Play\ 
Compliant with USB 2.0 Full-Speed (12Mbps) Specification 
External power adapter NO NEED 
LED indicators: Microphone-Mute States, Activity 
Include Xear 3D,the virtual 7.1 channel sound effect 
System Requirement: Windows 98 / 2000 / xp / Win7  8 10
 
Package Included:
50 Pcs USB Sound Card with opp bag
 

350w 24v gear motor, motor electric tricycle brush DC motor gear brushed motor Electric bike, My1016z3
Description:
350W 24V brush motor
Rated speed: 3000rpm 
Gear Ratio: 9.78:1 
Actual speed: 300 rpm 
Weight: 2.94 kg 
Sprocket: 9 teeth sprocket 410 (use for ordinary bicycle chain)
Sprocket size
Teeth: 9
Pitch: 12.7
Tooth thickness: 3mm
Inside diameter: 11mm
Outside diameter: 41mm
Package Included:
1 PCS My1016z3 motor

 
1590G Die-casting Stomp Box Case Aluminum Alloy Enclosure Box Case for Guitar Effect Pedal Music Equipment Attachment 100*50*26
 

 
Description
Material:Aluminium
Color:Silver/Black
Style: 1590G 100 X 50 X 26mm
Features:
The finish is clean and smooth
Each enclosure comes with 4 screws
Easy to be machined, drilled or painted
Bottom fits snugly with the top.
 
Package Included
10 Pcs 1590G Metal Box
 

 
1590G Die-casting Stomp Box Case Aluminum Alloy Enclosure Box Case for Guitar Effect Pedal Music Equipment Attachment 100*50*26
 

 
Description
Material:Aluminium
Color:Silver/Black
Style: 1590G 100 X 50 X 26mm
Features:
The finish is clean and smooth
Each enclosure comes with 4 screws
Easy to be machined, drilled or painted
Bottom fits snugly with the top.
 
Package Included
10 Pcs 1590G Metal Box
 

AD9850 DDS Signal Generator Module 0-40MHz Test Equipment
​
Description:
1. AD9850: 0-40MHz.
2. 2 sine wave and 2 square wave output.
3. After the 20-30MHz frequency harmonics increases, the waveform will be less and less clean.
4. Square Wave: 0-1MHz.
5. Low-pass filter with 70MHz, so the waveform better than SN.
6. Parallel and serial data input can be selected via a jumper.
7. DA produced the benchmark pin (PIN12) leads for easy adjustment to do the magnitude of the output waveform Application.
8. Comparator reference input voltage generated by the variable resistor, the resistor can be adjusted duty cycle square wave of different.
9. Active AD9850 125MHz crystal oscillator modules.
10. Dimension:4.5cm x 2.6cm
 
Package Included:
1 Pcs AD9850 Module

DIY Portable 12V Battery Energy Storage Spot Welding Machine PCB Circuit Board Welding Equipment Spot Welding Machine Accessory
 
Description
Foreword: Thank you for your attention. This product is a semi-finished circuit board. You need to have a certain electrical knowledge and hands-on ability. You also need to prepare some necessary    tools such as pliers, screwdrivers, soldering irons, etc.
 
Note:Battery Not Include
The circuit board of this spot welder can be used for welding 18650/26650/32650 lithium batteries. Advantages: portable, stable, reliable and durable. Low cost, you have a car starter battery, or a high-power battery pack, you can connect it and use it! Save production costs!
Users need to bring their own 12V battery for power supply, the welding current is about 90A~130A, and it is easy to weld the common 0.1mm~0.12mm nickel plated sheet. Please make sure that your battery can have a current greater than 90A, otherwise you will not be able to weld!
Power supply voltage: 12V-15V
Working current: 90-150A (discharge below 90A, it will not work.)
A battery with a large discharge current will directly affect the welding effect. The following batteries are recommended:
20-45ah Lead-acid batteries with good performance and small internal resistance (internal resistance less than 10 milliohms, discharge current greater than 90A), such as a new car starter battery!
3.5-5.5ah 3S model airplane lithium battery pack around 45C
30-35ah capacity 18650 battery pack
Power requirements:
Spot welding is welded by the principle of rapid local heating and cooling by high current,
Need sufficient current supply, generally 0.1-0.15 nickel plated sheet welding current
About 90-150A, so the working power of the circuit board must be greater than or equal to 150A.
 The following battery packs can be used as working power:
12V car starting power supply, 3S high-rate battery pack for model airplane, three-string high-rate lithium battery pack,
40900 3-string battery pack, lead-acid battery with good performance above 12V 20A.
Calculation formula: capacity X discharge rate = load capacity
Take 4000ma aeromodelling battery as an example, the discharge rate is 45C (4AX45C = 180A)
Instructions for use:
Function buttons: 1, used to switch the machine, 2 used to switch gears!
When the power is turned on, the default is the first gear. Press the button for 2 seconds to release
The gear is increased by one gear, and the buzzer sounds and the LED flashes corresponding to the number of gears.
For example: the 3rd gear, the buzzer sounds three times, the LED flashes 3 times, a total of 5 gears. The spot welding intensity is gradually strengthened from the 1st gear to the 5th gear
5 is the strongest!
After the 5th gear, press and hold the button again. It will power off. In the off state, press and hold the button to power on, and the gear will return to the first gear.
 
Package Included
1 Pcs 12V Battery Energy Storage Spot Welding Machine
 

Water flow sensor Industrial flow meter G1.5" Water Flow Counter Indicator Flowmeter Hall Sensor Switch G1.5 DN40 5-150L/min
Description:
Rated voltage DC = 5V
1, appearance of product identification clear, accurate to meet the requirements in line
2, hydrostatic pressure> 1.75MPa meet
3, Operating voltage range DC5 ~ 24V comply
4, Insulation resistance> 100M> 100M
5, Accuracy in 1 ~ 120L / MIN  ± 2% in line
6, Flow pulse characteristics F = (0.45 * Q) Q = L / Min meet
7, low temperature test at -20 'C temperature placed after 72h, at room temperature for 1h, the first measurement accuracy within ± 5% value in line
8, high-temperature test temperature at 85 'C placed after 72h, at room temperature for 1h, the first measurement accuracy within ± 5% value
Package included:
1 Pcs Water flow sensor Industrial flow meter

1.53 /
 
MQ-131 MQ131 Ozone Sensor Ozone Module High Concentration 10ppm-1000ppm Output
 
 
Description
1, size: 32mm X22mm X27mm (L*W*H)
2, the main chip: LM393, MQ-131 gas sensor
3, working voltage: DC 5V
4. Features:
4-1, with signal output indicator indication;
4-2, dual signal output (analog output and TTL level output);
4-3, TTL output valid signal is low level; (when output low level, the signal light is on, it can be connected to the IO port of the single chip)
4-4, the analog output increases with increasing concentration, and the higher the concentration, the higher the voltage;
4-5. High sensitivity to ozone gas (detection concentration range 10-100PPM)
4-6, with long-term service life and reliable stability;
4-7, fast response recovery characteristics;
4-8, with mounting holes for easy installation;
4-9, the probe can be plugged and unplugged for easy testing.
5. Application:
Ozone gas detection device for use in home and atmospheric environments.
 
Package Included
1 Pcs MQ-131 Ozone Module
 

1.53 /
MQ-131 MQ131 MQ 131 Ozone Sensor Oxygen Gas Sensor Module for Ozone Low/High Concentration Exceeded Alarm 10ppm-1000ppm Output
 
 
Description
1, size: 32mm X22mm X27mm (L*W*H)
2, the main chip: LM393, MQ-131 gas sensor
3, working voltage: DC 5V
 
Package Included
1 Pcs MQ-131 Ozone Module
 
 

1.53 /
MQ-131 MQ131 MQ 131 Ozone Sensor Oxygen Gas Sensor Module for Ozone Low/High Concentration Exceeded Alarm 10ppm-1000ppm Output
 
 
Description
1, size: 32mm X22mm X27mm (L*W*H)
2, the main chip: LM393, MQ-131 gas sensor
3, working voltage: DC 5V
 
Package Included
1 Pcs MQ-131 Ozone Module
 
 

MQ-136 hydrogen sulfide sensor module hydrogen sulfide detection sensor
Description:
Size: 32mm X22mm X27mm long X wide X high
Main chip: LM393, ZYMQ-135 gas sensor
Operating voltage: 5 V DC
Characteristic:
1 signal output indication.
2 dual signal output (analog output and TTL level output)
The output signal of 
3 TTL is low. When the output is low, the signal light can be directly connected to the microcontroller
4 analog output 0~5V voltage, the higher the concentration, the higher the voltage.
5 hydrogen sulfide, liquefied petroleum gas, natural gas, city gas, smoke has a good sensitivity.
6 with long service life and reliable stability
7 fast response recovery
Application:
The utility model relates to a gas leakage monitoring device which is suitable for families or factories, and is suitable for monitoring devices such as liquefied petroleum gas, butane, propane, methane, alcohol, hydrogen gas, smoke, etc..
Application: MCU learning, electronic competition, product development, graduation design...
Shipping list:
1 PCS MQ-136 module

 
 
UNO Shield Ethernet Shield W5100 R3 UNO Mega 2560 1280 328 UNR R3 Only W5100 Development Board
 
 
Description
This Ethernet Shield which is based on the Wiznet W5100 Ethernet Chip gives you an easy way to get your for Online. It is directly supported by for official Ethernet Library. It adds a micro-SD card slot, which can be used to store files for serving over the network. It is compatible with the for Duemilanove (168 or 328), Uno as well as Mega (1280/2560) and can be accessed using the SD library.
The Wiznet W5100 provides a network (IP) stack capable of both TCP and UDP. It supports up to four simultaneous socket connections. Use the Ethernet library to write sketches which connect to the internet using the shield.
 
Package Included
1 Pcs Ethernet W5100
 

 
AC 100-240V To DC 24V 9A 12A Switching Power Supply Module AC-DC
 
  
 
Description
Power Model:AC-DC 24V 9A 12A
Protection: overvoltage overcurrent circuit protection
AC input: AC85-265V (Global common)
AC frequency: 50HZ/60HZ
Output voltage: DC 24V
Output Current: 9A-12A
Output Power: 220W
Modulation: Pulse width modulation
 
Package Included
1 Pcs AC-DC 24V Switching Power Supply Module
 

 
 
LTC3780 Auto Lift and Pressure Power/constant Pressure Constant Current 12V24V Voltage Stabilizer/Car/Solar Charge
 
Description:
The power supply is a kind of high-efficiency voltage automatically regulator.
 
Whatever is the input voltage value,the output voltage can be maintained constant.
For example,set the output to 12V, then the variation of the input voltage in the range of 5-32V,
the output voltage in the 12V invariant.
This module has a perfect protection function, and can be widely used in notebook power,
vehicle power supply, solar charge etc..
 
Advantages:
The input uses replaceable fuse to protect power supply and equipment;
The whole electrolysis use patch, low resistance, high frequency capacitor
,to make the ripple down to the freezing point;
Constant voltage, constant current, under voltage protection (MPPT is more suitable for solar charging)
The output has error indicating lamp,it will light when the output voltage drift too serious,
short circuit and other fault;
Inductor use iron silicon aluminum, 0.8 double winding, generate less heat.
 
Parameters:
Input voltage: DC5-32V;
Output voltage: DC1V-30V continuously adjustable; the default 12V shipment
Output current: 10A (MAX) ,long term within 8A
Output power: 80W, peak 130W, more than 80W please strengthen heat dissipation
Output ripple: 50mV (12V turn to 12V, 5A measured)
Short circuit protection:YES
Input reverse connection protection: No
Output prevent reverse connection protection: No
Operating temperature range: -45 ~ 85 
Size: 77.6*46.5*15mm (including the bottom surface of the radiating aluminum)
 
Package included:
1 Pcs LTC3780 Module
 
 

 
L298P Motor Shield Motor Drive for Uno Compatible with UNO MEGA 2560
Description:
1.logical part of the input voltage VD: 5V
2.-driven part of the input voltage VS: VIN Input 6.5 ~ 12V, PWRIN 4.8 ~ 35V input
3.logical part of the work current Iss: <36mA
4.-driven part of the operating current Io: <2A
5.maximum power dissipation: 25W (T = 75 Celsius)
6.control signal input level: High 2.3V low -0.3V
7.Working temperature: -25 130 Celsius
8.hardware interface: 5.0mm pitch terminal
9.belt clip and can be controlled via front row access signal
10.Drive Type: Dual power H-bridge driver
11.Pin occupancy: D4 ~ D7 direct drive motor
12.supports PWM / PLL mode motor speed control
13.Size: 68 * 53mm
 
Package Includes:
1 Pcs L298P Motor Driver Shield

 
 
LTC3780 Auto Lift and Pressure Power/constant Pressure Constant Current 12V24V Voltage Stabilizer/Car/Solar Charge
 
Description:
The power supply is a kind of high-efficiency voltage automatically regulator.
 
Whatever is the input voltage value,the output voltage can be maintained constant.
For example,set the output to 12V, then the variation of the input voltage in the range of 5-32V,
the output voltage in the 12V invariant.
This module has a perfect protection function, and can be widely used in notebook power,
vehicle power supply, solar charge etc..
 
Advantages:
The input uses replaceable fuse to protect power supply and equipment;
The whole electrolysis use patch, low resistance, high frequency capacitor
,to make the ripple down to the freezing point;
Constant voltage, constant current, under voltage protection (MPPT is more suitable for solar charging)
The output has error indicating lamp,it will light when the output voltage drift too serious,
short circuit and other fault;
Inductor use iron silicon aluminum, 0.8 double winding, generate less heat.
 
Parameters:
Input voltage: DC5-32V;
Output voltage: DC1V-30V continuously adjustable; the default 12V shipment
Output current: 10A (MAX) ,long term within 8A
Output power: 80W, peak 130W, more than 80W please strengthen heat dissipation
Output ripple: 50mV (12V turn to 12V, 5A measured)
Short circuit protection:YES
Input reverse connection protection: No
Output prevent reverse connection protection: No
Operating temperature range: -45 ~ 85 
Size: 77.6*46.5*15mm (including the bottom surface of the radiating aluminum)
 
Package included:
1 Pcs LTC3780 Module
 
 

 
DIY Power Bank 18650 Battery Case Power Bank Battery Storage Box Powerbank Box Charger Shell Case 8 * 18650 Micro Type-c Interface
      
 
Note:
Installing the battery must pay attention to the positive and negative, anti-loaded will burn, burned out is not returned.
This is mobile power kit, 18650 battery is not included. The battery must be right installed before you can use.
Since this is a DIY kit, all products by professional test.
Description
100% brand new and high quality.
With Type C input and micro USB input,More convenient.
Digital Tube Display Screen - Accurate display of power, know the Battery Status at any time.
2 LED light, showing charging status and on/off status, reminds stock energy. Press the button twice to turn on the LED light,Press the button twice to turn off the LED.
Specification:
Color: White
Capacity: 20000mA
Product Weight: 108g
Dimensions: 162mm*81mm*22mm
Battery Type: 8 x 18650
Port: Type-C / USB
Output: 5V/2A Max
Package Included
1 Pcs DIY Power Bank Case Box
 

 
DIY Power Bank 18650 Battery Case Power Bank Battery Storage Box Powerbank Box Charger Shell Case 8 * 18650 Micro Type-c Interface
      
 
Note:
Installing the battery must pay attention to the positive and negative, anti-loaded will burn, burned out is not returned.
This is mobile power kit, 18650 battery is not included. The battery must be right installed before you can use.
Since this is a DIY kit, all products by professional test.
Description
100% brand new and high quality.
With Type C input and micro USB input,More convenient.
Digital Tube Display Screen - Accurate display of power, know the Battery Status at any time.
2 LED light, showing charging status and on/off status, reminds stock energy. Press the button twice to turn on the LED light,Press the button twice to turn off the LED.
Specification:
Color: White
Capacity: 20000mA
Product Weight: 108g
Dimensions: 162mm*81mm*22mm
Battery Type: 8 x 18650
Port: Type-C / USB
Output: 5V/2A Max
Package Included
1 Pcs DIY Power Bank Case Box
 

 
LCR-T4 Mega328 M328 Multimetr Transistor Tester ESR Meter Diode Triode Capacitance ESR Meter MOS PNP NPN LCR CASE (not Battery)
Description:
1. Automatic detection of NPN and PNP transistors, N -channel and P-channel MOSFET, diodes (including dual diode), thyristors, transistors, resistors and capacitors and other components,
2. Automatic test out the pin element and displayed on the LCD
3. Can be detected to determine the transistor emitter forward bias voltage of the transistor, MOSFET protection diode and the amplification factor of the base
4. Measure the gate threshold voltage and gate capacitance of the MOSFET
5. 1602 lcd display uses LCD (12864 LCD with backlight)
6. High test speed, valid component test: 2 seconds (except in the larger capacitor of large capacitance measurement also takes a long time, the measured time of one minute is normal)
7. One button operation, power-on test, get a key.
8. Power consumption off mode: less than 20 nA of
9. Auto power off function to avoid unnecessary waste, saving battery power, improved battery life.
 
Specifications:
Resistor: 0.1ω-50Mω
Capacitor: 25pF-100000uF
Inductance: 0.01mH - 20H
Working power: DV-9V
Standby current: 0.02uA
Operating current: 25mA
Size:110mmx85x25mm
Color: Clear
 
Package included:
1 Pcs ESR Meter Transistor Tester Diode Triode Capacitance SCR inductance(not Battery )
 

3.2 Inch 240x320 TFT LCD Module Display 320*240 with Touch Screen Controller Panel ILI9341 SD Card Than 128x64 3.2" LCD 3.3V
 

 
Description
3.2" inch TFT LCD module with touch screen controller and a SD card cage. It is suitable for embedded systems which require display high quality colorful image or video with interactive control and storage purpose. 
 ILI9341 controller.
3.3v voltage regulator.
PCB adapter for lcd.
One Standard SD card socket.
Support 16 bit RGB565 format , can connect any 16 bit data bus.
2x20 Pin 2.54mm double row pin header interface for connecting MCU.
Can be driven by 8051 / AVR / PIC and other low power controllers.
Display content: 240RGB x 320 Dots.
Resolution: 240 x 320 Dots.
Screen: 262K Colors.
Size: as shown in the following picture (mm).
1 GND 21 LCD_DB0
2 VCC 22 LCD_DB1
3 N.C. 23 LCD_DB2
4 LCD_RS 24 LCD_DB3
5 LCD_WR 25 LCD_DB4
6 LCD_RD 26 LCD_DB5
7 LCD_DB8 27 LCD_DB6
8 LCD_DB9 28 LCD_DB7
9 LCD_DB10 29 TouchP_CLK
10 LCD_DB11 30 TouchP _CS
11 LCD_DB12 31 TouchP _DIN
12 LCD_DB13 32 TouchP _BUSY
13 LCD_DB14 33 TouchP _OUT
14 LCD_DB15 34 TouchP _Penirq
15 LCD_CS 35 SD_OUT
16 N.C. 36 SD_SCK
17 LCD_RESET 37 SD_DIN
18 N.C. 38 SD_CS
19 LED_BL 39 N.C.
20 N.C. 40 N.C.
 
Package Included
1 Pcs 3.2 Inch 240x320 TFT LCD Module

FSR406 Force Sensing Resistor Thin Film Pressure Sensor
 
Description:
Force Sensing Resistor is a light weight, small volume, high sensing precision, ultra-thin resistance type pressure sensor.
This is a 1.75x1.5 "(JN 45x38mm) square pressure sensor, as applied in the sensing area force size changes, the output resistance value will have corresponding change. The greater strength, the smaller the resistance value. If not exert any force, resistance value will be greater than 1M. This sensor can detect the pressure of 0-10kg.
Viscose FSR sensors in the back, just tear off can be pasted on the part to be detected, very easy to use.
Specifications:
Length: 8.9cm
Width: 4.5cm
The induction zone: 4.5*3.8cm
Package Included
1 PCS FSR406 Sensor

 
 
Mega328 M328 LCR-T4 12846 LCD Digital Transistor Tester Meter Backlight Diode Triode Capacitance ESR Meter MOS/PNP/NPN L/C/R
 
 
Description:    
1.2015 latest M328 version of the software ,more functions.Chip: Atmega328    
 
2.128*64 big Backlight LCD display,only 2mA when stand by.    
 
3.Using 9V battery (Not included)    
     
Test ranges:    
Inductors,capacitors,diodes,dual diode,mos,transistor,SCR,the regulator,LED tube,ESR,Resistance,Adjustable potentiometer    
 
Resistance :0.1 ohm resolution, maximum 50M ohm
 
Capacitor :25pf -100,000 uf
 
Inductors : 0.01mh-20H    
 
NEW Function:    
1:Automatic detection of NPN and PNP transistors, n-channel and p-channel MOSFET, diode (including double diode), thyristor, transistor, resistor and capacitor and other components    
2: Automatic test the pin of a component, and display on the LCD    
3:Can detect the transistor, MOSFET protection diode amplification coefficient and the base to determine the emitter transistor forward biased voltage    
4: Measure the gate and gate capacitance of the MOSFET threshold voltage    
5:Use 12864  liquid crystal display with green backlight    
Specifications: For you reference    
1,One -button operation, automatic shutdown .    
2,Only 20nA shutdown current.    
3,Automatically detect NPN, PNP bipolar transistors , N -channel and P -channel MOS FET, JFET , diodes , two diodes, thyristors small power unidirectional and bidirectional thyristor.    
4,Automatic identification components pin arrangement .    
5,Measuring bipolar transistor current amplification factor and base - emitter threshold voltage.    
6,Via the base - emitter threshold voltage and high current amplification factor to identify Darlington transistors.    
7,Can detect bipolar transistors and MOS transistors protection diodes.    
8,Measuring the gate MOS FET threshold voltage and the gate capacitance.    
9,Can simultaneously measure two resistors and resistor symbol is displayed. Displayed on the right with a decimal value of 4 . Resistance symbol on both sides shows the pin number. So you can measure the potentiometer. If the potentiometer wiper is not transferred to an extreme position , we can distinguish the middle and both ends of the pin.    
10,Resistance measurement resolution is 0.1 ohms , 50M ohms can be measured .    
11,Can measure capacitanceCan measure capacitance of 30pF-100mF , resolution 1pF. 12,2uF more capacitors can simultaneously measure the equivalent series resistance ESR values. The two can be displayed with a decimal value , resolution 0.01 ohms.    
13,Can be in the correct order and the diode symbol display two diodes , and gives the diode forward voltage.    
14,LED is detected as a diode forward voltage higher . Combo of the LED is identified as two diodes.    
15,Eeverse breakdown voltage is less than 4.5V Zener diode can be identified.    
16,Can measure a single diode reverse capacitance. If the bipolar transistor connected to the base and collector or emitter of a pin , it can measure the collector or emitter junction reverse capacitance .    
17,can be obtained with a single measurement rectifier bridge connection.
 
Notice: Before measuring capacitance , the capacitor must be discharged , otherwise very likely damage the meter .
 
Package Includes:
1 Pcs 1New Transistor Tester Diode Triode Capacitance ESR Meter MOS PNP NPN R/C/L M328(As the picture  
Note:The battery is not included.