•Powered by 4 AAA batteries •110 Degree coverage (convex honeycomb, hemispherical infrared lens) •Area of detection 39 feet/12 Meters •Thermal optic protection cavity •LED for operational notification •Sensitivity selector •Low battery detection •Battery Life approximately 2 Years This Wall Mounted Passive Infrared Sensor is compact, attractive in design, and is ideal for commercial, office and residential applications. It is provided with an adjustable bracket designed for horizontal of vertical use. The Z-Wave Motion Sensor detects occupancy by sensing changes in the infrared energy patterns.Z-Wave Motion Sensor emits no radiation and is harmless to humans and animals.