10 years of smoke and heat alarms driven by lithium batteries. The device is designed based on EN14604(2005) and GB 20517-2006,GB4716-2005 standards.

· power supply: 3v lithium battery (such as CR-123A,CR 2/3AZ)
· Replaceable battery with battery loss prevention design

· Low battery indicator
· Test/Hush button
· Build-in buzzer:85db at 3m
· LED indicator
· Working Humidity:≤95%RH(40℃±2℃)
· Working Temperature:-10℃~50℃
· Size:Ф64mmxH 43mm
*Comply with EN14604 standard