1.Contact ID protocol for central monitoring station.
2.Up to 50pcs sensors & 10 remote controls can be expanded.
3.Sensors, Remote control names can be customised .
4.Two wired zone special for smoke/gas/vibration/ detector, IR beams.
5.Auto-dail preset three groups of SMS Number & five groups of phone number.
6.Alarm output enable you to trigger the equipment as light, TV etc. to deter the intruder immediately.
7.Immediate SMS alerts for low battery, power lost and power recovery.
8.3.7V/900mA Lithium Battery Back-up Last for 12 Hours.
9.110dB Internal Siren sound and mute mode for optional.
11.Work with Alexa, Google Home.