KY-025 KY-026 KY-036 for Arduino DIY Reed Sensor Magnetron Module Metal Touch Sensor Flame Sensor Infrared Sensor Switch Module KY-025 Features: 1. Comparator output, clean signal, good waveform, strong driving ability, more than 15mA. 2. Working voltage DC3.3V-5V 3. Output form: digital switch output (0 and 1) 4. With fixing bolt holes for easy installation 5. Use a wide voltage LM393 comparator Module Usage Instructions: 1. The reed switch needs to be used in conjunction with a magnet. When a certain magnetic force is sensed, It will be in an on state, the module outputs a low level, and when there is no magnetic force, it is in a disconnected state and outputs a high level Flat, the sensing distance between the reed switch and the magnet is less than 1.5cm, it is insensitive or there will be no triggering phenomenon, 2. The DO output terminal of the module can be directly connected to the I/O port of the single-chip microcomputer, and can be detected by the single-chip microcomputer.Measure the triggering state of the reed switch, 3. The DO output terminal of the module is connected to the IN terminal of the relay to form a high-power reed switch.Direct control of high voltage. Applications: Refrigerator, disinfection cupboard, door magnet, window magnet, electromagnetic relay. Package Included: Static bag packaging KY-025 DC3.3V-5V large reed magnetic induction module *1 KY-026 Features: 1. Can detect flames or light sources with wavelengths in the range of 760 nm to 1100 nm 2. The detection angle is about 60 degrees, which is particularly sensitive to the flame spectrum 3. Comparator output, clean signal, good waveform, strong driving ability, more than 15mA 4. Equipped with adjustable precision potentiometer to adjust sensitivity (adjusted by potentiometer) 5. Output form: digital switch output (0 and 1), analog output 6. With fixing bolt holes for easy installation 7. Use a wide voltage LM393 comparator Specifications: Name: flame sensor Working voltage 3.3V-5V PCB size: 36*15mm Description: The flame sensor is most sensitive to flame, and also responds to ordinary light. It is generally used for flame alarm and other purposes. The output interface of the small board can be directly connected to the IO port of the microcontroller. The sensor and the flame should keep a certain distance to avoid high temperature damage to the sensor. The test flame distance is about 80cm, and the larger the flame, the farther the test distance is. Package Included: Static bag packaging KY-026 DC3.3-5V flame sensor module*1 KY-036 Features: 1. Single channel signal output 2. Low level output signal for human touch sensor alarm 3. Adjustable sensitivity 4. With fixing bolt holes for easy installation 5. The product is small Specifications: Working voltage: DC 5V Material: PCB + Brass Color: red+blue Package Included: Static bag packaging KY-036 DC5V metal touch sensor module*1