Feature: 1. Design Principle: The sensing switch is a sensor for moving objects, which is based on the Doppler principle and radar technology, using an antennae and a high performance microchip. The detection range is 360 degrees and its operating frequency is 5.8GHz. 2. Safe And Stable: Microwave radar sensing switch has a stable working condition (stable working temperature: ‑350°C to +80°C) and uses microwave sensors (high frequency output less than 0.2mW), so it is safe and performs better than infrared sensors. 3. Weather Resistant: The radar sensor light switch offers high detection rates, low false alarms, and is resistant to rain, fog, wind, dust, snow and extreme temperatures. Easy to install, it can be mounted inside products made of glass or plastic as these materials have little effect on the sensor. 4. Automatic Operation: When a person enters the sensing detection range (2m to 10m radius), the load lamps light up. When the person leaves through the sensing detection range and the set delay time countdown is over, the load lamps go out automatically. 5. Sensitive: Load lamps have been lit, if people have been staying in the induction range, in the set delay time before the end of the countdown, as long as the person has a slight movement (including the movement of the limbs), the sensor will drive the load lamps continue to be lit until the person to leave and the set time after the end of the countdown, the load lamps go out automatically. Specification: Item Type: Microwave Radar Sensing Switch Material: ABS Size: Approx. 90 x 41 x 39mm / 3.5 x 1.6 x 1.5in Power Supply Voltage: 220-240VAC Maximum Load: 1200W Power Frequency: 50, 60Hz Detection Angle: 360 Degrees Installation Location: Indoor, On the Ceiling Detection Distance: Approx. 2-10m / 6.5-32.8ft (Radius), Adjustable High Frequency System: 5.8GHz ISM Frequency Time Setting: 10sec to 30min Transmission Power: