Using Photoresistor Sensor Comparator output, clean signal, good waveform, strong driving ability, more than 15 mA. Adjustment Sensitivity of Distribution Potentiometer Working Voltage 3.3V-5V Output Form: Digital Switch Output (0 and 1) Fixed bolt hole for easy installation Board Size: 3.2cm x 1.4cm Using a Wide Voltage LM393 Comparator Including: 1x Photosensitive Sensor

Notes:
Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.