We are Cangzhou tianlong Hardware Electronics Co., Ltd. based in cangzhou , China. We are member of Tradekey.com since November, 2008. Our business is related to Electrical & Electronics Supplies industry and we specifically deal in reed switch. Please find our product details below: Smoke Alarm First, the product features: Smoke Alarm (Model: YB, the ex-factory price: 50 yuan / only, retail price: 65 yuan / only) using photoelectric sensors, high sensitivity, long life, low power consumption; built-in microcomputer fuzzy intelligent control, fault Self-test to prevent false reporting, stable and reliable performance; when monitoring the excessive concentration of smoke, sound and light alarm immediately. Second, the technical performance: 1, report to the police: When the smoke to monitor the concentration level exceeds the immediate sound and light alarm. 2, sensitivity: in line with the standard GB4715-1993. 3, alarm volume: ≤ 90 dB. 4, operating voltage: DC9V, using a battery-GF22. 5, current work: a state monitoring 10μA, the police state of 20mA. 6, the working environment: Temperature -10 ℃ ~ +50 ℃, relative humidity ≤ 95% RH. 7, light: when the monitor flashes once every 40 seconds, 1 second report to the police every time a flicker Reed switch I have a number of companies are now producing their own green-reed switch, GSG after certification, quality, reasonable price, those who wish to please contact me! Tel: 13832797798 0317-8927007 Peng Jingli Web site: ***** ***** Reed switch I have a number of companies are now producing their own green-reed switch, GSG after certification, quality, reasonable price, those who wish to please contact me! Tel: 13832797798 0317-8927007 Peng Jingli Web site: ***** ***** Smoke Alarm First, the product features: Smoke Alarm (Model: YB, the ex-factory price: 50 yuan / only, retail price: 65 yuan / only) using photoelectric sensors, high sensitivity, long life, low power consumption; built-in microcomputer fuzzy intelligent control, fault Self-test to prevent false reporting, stable and reliable performance; when monitoring the excessive concentration of smoke, sound and light alarm immediately. Second, the technical performance: 1, report to the police: When the smoke to monitor the concentration level exceeds the immediate sound and light alarm. 2, sensitivity: in line with the standard GB4715-1993. 3, alarm volume: ≤ 90 dB. 4, operating voltage: DC9V, using a battery-GF22. 5, current work: a state monitoring 10μA, the police state of 20mA. 6, the working environment: Temperature -10 ℃ ~ +50 ℃, relative humidity ≤ 95% RH. 7, light: when the monitor flashes once every 40 seconds, 1 second report to the police every time a flicker Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.