Daytech Wireless Smoke Detector fire alarm rumah pengesan asap for Warehouse/home 警报器 SM12

【Packing content】1 x Smoke Alarm 1* 9V Battery2 x screws【Specifications】❃Alarm volume: 10 feet to 85 dB❃Round Size: R = 102mm, H = 31mm❃Operating voltage: 9V battery (6F22 carbon battery)❃Static current: <20uA ❃Alarm current: <40mA❃Battery life: about 1 year❃Alarm indication: Red LED Flash❃Alarm sound:≥85dB/3m❃Detecting area: 25m2 at 6-12m installation height❃Sensitivity:1.8%ft±0.8%ft❃Installation:Ceiling mounted❃Working environment:-10°C~+50°C,( ≤95%RH NO congelation)✨【Description】It is a fire smoke detector alarm, general purpose ideal for all areas: house, shop, hotel, restaurant, office building,school, bank, library, computer house, and storehouse, etc.Alert and warn people to stay far away from the dangerous fields when it detected smoke.The detector adopts the special structure design and ASIC, has the dustproof, mothproof, and anti outside light interference feature, etc.✨【Instructions for use】（1）The recommended frequency of testing: should be tested once a month to ensure that the alarm is working properly.（2）Detection method: gently press and hold the test button, the alarm indicator flashes rapidly and emits an alarm sound, the alarm is working normally.（3）Smoke alarm: under normal circumstances, the alarm indicator flashes regularly (about once a minute), every about 1.6 seconds, automatically detects the concentration of the surrounding environment, when the smoke concentration reaches the alarm value, the alarm indicator begins to flash and the alarm sounds an alarm.（4）Battery detection: the alarm automatically detects the battery voltage every minute, before the battery is exhausted once a minute prompt (the alarm issued a "drop") can be maintained for 30 days in the case of timely replacement of the battery, otherwise it will affect the normal operation of the alarm.