KY-021 Mini Magnetic Reed Module for Arduino
The KY-021 Mini Magnetic Reed Switch Module consists of a 10k resistor and a small reed switch actuated by a magnetic field, commonly used in mechanical systems as proximity sensors. Compatible with popular electronic platforms like Arduino, Teensy, and ESP8266.
- Dimensions:20 x 15 x 7mm
- Input Voltage:3.3~5v
- Weight:1.2g
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