Specifications Wireless frequency: 433MHz/315Mhz Detecting distance: 8~12m Good resistance to false alarms Main Features: Automatically identify valve control Adjustable pulse count ASIC adopted Auto temperature compensation Send alarm signal by RF Adjustable detecting distance Low battery indication SMT design adopted TECHNICAL SPECIFICATION Operating voltage: DC 9V Static current: 60uA Alarm current: 20mA Detecting distance: 8~12m Detecting angle: 110 degree Radio frequency: 433MHz ± 0.5MHz Radio distance: 100m (open area) Sensor: Dual element infrared sensor Operating temperature: -20 ~ +55'C Environment humidity: 10~ 93% RH (no congelation)