Simple door magnetic burglar alarm doorbell alarm and other four in one function door and window alarm(wechat:13510231336)

Simple door magnetic burglar alarm doorbell alarm and other four in one function door and window alarm

Product name: Simple door magnetic alarm/magnetic switch intrusion detector

Alarm volume: 108db

Powered battery: 2 AAA(or No. 7) alkaline batteries work

Battery life: more than 2 years in standby mode (counting 5 times per day)

Operating temperature: -10℃~60℃

Working environment humidity:<80%

Storage temperature: -20 ° C ~ 70 ° C