Circuit for normally closed/opened rely contacts ,smoke alarm is that to prevent fire,and it detect smoking.easy operate .
smoke alarm have own Circuit for normally closed/opened rely contacts ,smoke alarm is that to prevent fire,and it detect smoking.easy operate .
smoke alarm (AK-218A)
Description:
* Power:110VAC/220VAC/230VAC( backup 9v battery),9v battery,12V-24VDC* Operating Current: 10 uA (normal) and 20-50 mA(alarm working)* Sensitivity to smoke:In comply with UL217 &BS5446: Part 1 2000* Kite mark License no. KM 53166. 0.81~1.42%/FT* Operating Temperature: 40oF - 100oF (4. 4C - 37.8oC) Ambient Humidity : 10% - 90%. Horn Level: 85 Decibels at 10 feet.* Battery life: 3 year * Interconnecting Gas detector (1)Circuit for normally closed rely contacts (2)Circuit for normally opened rely contacts (3)Operating Frequency: 433 MHZ/315MHZ (optional)* Size:125mm*30mm* Weight:168g/pc * Package size:58.5cm*42.5cm*30.6cm* Quantity/BOX:80pcs......If you are interest in our factory and our smoke alarms,please contact joy,thanks.Welcome to China and visiting our factory!
cheap smoke alarms
