This module can be apply in Program-controlled switches, copiers, washing machines, refrigerators, cameras, Disinfection cabinet, door, window magnetic, electromagnetic relays, electronic weighing, level meter, gas meter, water meter and so on.
working voltage 3.3V-5V
output format: digital switching output (0 and 1)
PCB size: 3.2cm x 1.4c
using a wide voltage LM393 comparator
clean, good waveform driving ability ,more than 15mA.
a fixed bolt holes for easy installation
1 X KY-025 4pin Reed Module