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联系人 Mr. Sammer
Room 21L1, C&E Building, No.168, Baizhang Road, ningbo, zhejiang
Specifications: 1) Power supply: 9V battery 2) Quiescent current: 6 ~ *2Î&frac*4;A 3) Age limit of battery: 2 years 4) Temperature: **0°C ~ **0°C 5) Alarm decibel: â�¥*5dB/cbm 6) Sensitivity of smoke: EN****4