Description:  Wireless Smoke Detector is a photoelectric smoke detector uses a unique structural design, and uses MCU for intelligent processing of optical signals, from design to ensure product stability. It responds well to the smoke of smoldering and burning. It is equipped with photoelectric smoke sensor, when the ambient smoke concentration reaches the alarm level, the detector will send out sound and light alarm signal.    Key Features:  1.Using imported US chips to ensure stable and reliable performance;  2.Using optical maze smoke detector, without any radiation;  3.Using ultra-low power design, can effectively extend battery life;  4.Sound and light alarm, battery low voltage tips;  5.Manual reset and fault self-test function;  6.Smoke detection sensitivity adjustable to meet different environmental needs;  7.Built-in wireless transmitter module, can work with alarm host;  8.Suitable for residence, shop, shopping mall, office building, library;    Technical Parameters:  1.Operating Voltage: 3V battery (2AA LR6 AM3 1.5V,not include);  2.Quiescent Current: <2uA;  3.Sensitivity: 2.06ft%±1.3ft%;  4.Low Voltage Alarm: ≤2.5V;  5.Alarm Sound Pressure: ≥85dB/3m;  6.Wireless Transmission Frequency: 433MHz;  7.Wireless Transmission Distance: 75 meters (open area);  8.Protection Area: When the place height is 6-12 meters, the area is about 80 square meters; if the height is under 6 meters, the protection area is 60 square meters; specific parameters should be referred to automatic fire alarm system design specifications GB50116-98;  9.Working Temperature: -10℃~50℃;  10.Working Humidity: ≤95% RH;  11.Shell Material: Fire-resistant ABS, PC;  12.Outside Dimension: 81mm*81mm*46mm;  13.Implementation Standards: GB7415; GB7416; En14604; UL217;    Package include:  1 x Wirelss Smoke Sensor Detector (not include AA battery)