This infrared motion sensor switch can adjust delay time, timing setting from 15s to 300s, factory setting 15S (default)4 -5 meters detecting range and high sensitivity. the smart motion sensor light switch is a digital intelligent automatic control product, which is highly sensitive and reliable to use; When an object or person enters the sensing range, this pir detector can be automatically turned on, and can be automatically delayed off after the person leaves, which can well avoid the situation of not turning off the lightThis switch sensor has an additional photoresistor. It does not work during the day and the light is dim at night. If someone passes by, the light will turn on.The PIR Infrared Motion Sensor function triggered by motion, you can use this small motion sensor switch to control lighting of corridors, toilets, basements, warehouses, garages and other places, automatic ventilation of exhaust fans and automatic control of other electrical appliances.size:3.61 x 1.30 x 2.01 cmMaterial:ABS+Electronic componentscolour:BlackPackage Contents:2 X Ajustable PIR Sensor Body Infrared Motion Sensor Switch2 X Male Power Plug Connector2 X Female Power Plug ConnectorOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.