Rain Drop Sensor Module

he LM393, use of the wide voltage comparator that provide both digital and analog output.
Treatment of nickel plating and surface, have fight oxidation, electrical conductivity, and life has more superior performance
The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 mA
With potentiometer sensitivity adjustment and has a fixed bolt hole, convenient installation
Output LED indicator.
Compatible with Arduino.