Mini Reed Sensor Module KY-021

Description:

This is mini magnetic reed spring detection sensor module modules for Arduino.

Reed switches are actuated by magnets and are commonly used in mechanical systems as proximity sensors.

Features:

• Easy to use

Comparator output: clean signal, good waveform, drive capability exceeds 15mA. 

• Working voltage: 3.3V~5V

• Material: PCB

Fixing bolt holes

PCB Dimension : 3.2cmx1.2cm

Wide Voltage LM393 Comparator.