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Wireless Smoke Sensor with Photoelectric Technology We can supply you with Smoke Sensor with Photoelectric Technology, Wireless Smoke Sensor, Smoke Detector, Fire Sensor, Fire Detector and other Sensors.In very Competitive Prices. Main Function: (1) Smoke sensor is suitable for Kitchen, hotel, school and other places (2) High sensitivity to fire smoke (3) Ceiling and Wall mounting available (4) Built-in buzzer (5) Suitable for any room (6) Alarm test for easy recommended monthly test (7) Low battery signal (8) Wireless/Wired/Alone type availabe (9) Photoelectric Technology Technical Parameter: (1) Power Supply: DC 9V (2) Standby Current : *0 uA (normal) (3) Working Current: ****0 mA (4) Frequency:**5/**3MHz (5) Transmitting Distance:******0m (In open area) (6) Battery life: 1 year min (7) Ambient Humidity:*0% - *0% (8) Temperature: *0oF - **0oF (4. 4C - *7.8oC) Please Contact us for more Details. Regards,