Specifications:
-It need two AAA alkaline batteries ( not included )
-They can work for over 2 years with low-consumption design
-Not only an alarm, but also a doorbell
-When it need replace batteries, the LED light will flash once every second
-Package Size: 4.2*2.5*1.5inch
-Package Weight: 51g
Operation to work:
-After instaliing batteries, press any mode button once to power on and enter the corresponding mode.
-Press the off/disarm button for 2 seconds to power off.
Package:
-1* Alarm
-1* Magnet box
-1* User Manual
