Feature: 1. It uses microwave sensors, which has better performance and safer than infrared sensors. 2. Use microwave radar as control signal source to detect human movement. When someone enters the detection area, the indicator lamp will immediate light. 3. The detection range is 360°, which is easy to install and provides high detection probability. 4. Perfect for closets, basements, laundry, garages, bathrooms, aisles and stairs. 5. High sensitivity, long induction distance, strong reliability, large induction angle, wide range of power supply voltage. Specification: Condition: 100% Brand New Item Type: Microwave Sensor Switch Material: ABS Diameter: Approx. 9.5cm / 3.7in Height: Approx. 4.2cm / 1.7in Operating Voltage: 12-24V DC Output Type: Relay node (switch) signal Installation: Indoor, ceiling installation HF System: 5.8Hz+/-75MHz CW Radar Power Consumption: <0.5W Transmission Power: <0.2mW Load Current: 7A (Maximum) Detection Angle: 360° Working Delay: 10s-5min Detection Distance: 2-10m / 6.5-32.8ft Light Control Illumination: 10-2000LX Working Temperature: -35℃~80℃ Weight: Approx. 127g / 4.5oz Package List: 1 x Microwave Sensor Switch2 x Bolt2 x Nut1 x Instruction Note: Please allow 1-3cm error due to manual measurement. Thanks for your understanding.