10pcs LM393 Photosensitive Resistance Light Sensor Relay Module Compatible with Arduino

Features:
· 100% brand new and high quality.
· Using a wide voltage LM393 comparator.
· With a mouting screw hole, easy to install Using the sensitive type photosensitive resistance sensor.
· The comparator output signal clean waveform is good, driving ability, than 15mA With adjustable potentiometer can adjust the brightness of the light detected.
· Working voltage: 3.3V-5V Output: DO digital switch output (0 and 1), AO analog voltage output.