It is a Photosensitive Resistance Sensor Relay Module. When it is brighter, the module relay pulls in. When the threshold is dark, the relay is disconnected. The threshold can be set with the help of the potentiometer, which is mounted on the module itself.
1 x Photosensitive Resistance Sensor Relay Module.
15 Days Warranty
This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Reimbursement or replacement will be done against manufacturing defects.
What voids warranty:
If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.