Product Description - SR-803P Main features: 1.MPU processing adopted/Manual test /Auto-reset 2.Metal shield with high-frequency immunity 3.Unique structure with dustproof, anti-fly, anti-light design 4. Photoelectric sensor 5. Sound& flash alarm 6. High stability to the environment(Best adaptability with the environment) 7. High-density SMT design, high steady, sensitivity adjusted Technical parameter: Operating voltage: DC9V battery (6F22) Surveillance current: â?¤10uA (DC9V) Alarm current: â?¤12mA DC9V â?¤30mA AC220V SPL: â?¥85dB(with 1 meter) Temperature range: -10~50°C Humidity: â?¤95%RH Low voltage working time: 7-15 days Product Demension: Φ132.5X43mm product weight: 0.25kg