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Personne àcontacter Mr. hyde
3F, Building 4, No. 4 Qixin Road, Ningbo Hi-Tech Park, Ningbo, Zhejiang
Smoke detector 1.9V Battery smoke detector; 2.High alarm *5dB(3m) smoke detector; ***** button; 4.Low battery warning; PW***7 Stand-alone photoelectric smoke detector is under BSI approval, and can be calibrated into either UL, VDS, NF Standards. This smoke detector features UL-approved Photoelectric sensing components with precise smoke detection. and long life (*8 months) 9V battery operation (9V UltralifeLithium battery model for **-year life is available too). 9V Power Supply smoke detector, Meets CE, RoHS and EN****4 Smoke detector Specifications/Special Features: Features: Works on principle that infrared scatters on smoke surface Probes smoke which is generated by incomplete combustion at initial stage of fire Smoke detector consists of photoelectric system, signal processing identification and alarm circuit Infrared scatters on surface of smoke when smoke enters darkroom of detector Photoelectric diode receives scattered light and generates photoelectric signal current Photoelectric signal generates alarm signal after being processed by identification circuit, accordingly purpose of alarming is achieved Specifications: Material: ABS plastic Power supply: 9V DC Block battery/PP3 Quiescent current: 8Î&frac*4;A Alarm current: *6mA Operating temperature: **0°C ~ *0°C Humidity: 0 to *5%(*0±2°C), no condensing or icing Alarm decibel: Louder than *5dB at *0feet(3 meters) Test button: To verify the proper functioning of smoke alarm Low voltage warning: Smoke alarm beeps every *0 seconds for 7 days (minimum) to indicate a need of battery replacement Smoke sensitivity: 0.**6 dB/m to 0.**0 dB/m
