Motion sensor, it controls one or more devices connected for light control. Infrared detection with angle of 140 °Distance of the adjustable sensor from 2 to 8 m.Switch off delay with 1 to 30 min adjustable delay time and 1 to 1000 lux brightness threshold. Test possiblewith a 5 sec. delay Recommended assembly height: 2.5 m. Optimum distance between 2 detectors: 6 m. For indoor and outdoor use (IP44). Supplied with 2 x 1.5V AA batteries for power supply.