... work by backup battery when power off GSM alarm kit EB-832( 7wired and 28 wireless zones ... garage, wherever GSM Network is presented.2. When alarm is activated, user could select: both dialing number and ... Have the option to set Arm delay and alarm delay mode.7. Have the option to send ... backup battery, wireless smoke detector, gas detector, infrared curtain sensor, panic button, etc. GSM alarm kit