Photosensitive resistance module is most sensitive to ambient light. Module is commonly used to detect amient light. Module can be directly connectedwithMicrocontrollers or totrigger relay module. Module sets output to LOW logic (on DO pin)if the light intensity ishigherthan set point. Module only supports digital output and does not has Analog output.

• Usesphotosensitive resistance sensor
• Uses LM393 wide voltage comparator
• Cleansignal, good waveform,strong driving ability for more than 15 mA
• With adjustable potentiometer to adjust lightsensitivity
• Has singlemounting hole
• Small board PCB size: 3.2 cm x 1.4 cm