1. Millimeter wave radar detects the presence of human body, and the system pushes an alarm 2. Not affected by temperature, heat source, light source and air flow 3. Can detect the presence and movement of human body 4. Effective identification and distance positioning of static human body 5. Can be intelligently linked with the lighting and equipment of the application scene<br><br>Easy to install, simple and safe. Name:Human presence sensor Supported APP:Smart Life/Tuya Smart Network:Wifi 2.4GHz Radar Frequency:24Ghz Installation Type:Ceiling Installation Input:80-250VAC Max. Detection Distance(From Ceiling to Groud):3meter Colour:White Material:ABS<br><br>Package Contents: 1 * Human Presence Motion Sensor<br><br>Only the above package content, other products are not included. Note: Light reflection 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.