90 defense zones study codes security alarm dial system(avoid theft,gas leakage, fire danger ect.):
1.Siren / mute siren and continue dial your pre-set 6 groups of Tel No. at first time when an accident(theft,gas leakage, fire danger ect) happen.
2.In prior to call your preset tel, even another call already coming or someone using the telephone .
3.Faraway control by telephone under password protection to operate the system such as arm, disarm, activate siren, shut siren, hear what happen by phone ect.
4.Can work with wireless gas leakage alarm, smoke alarm, PIR detector ,door/window detector, emergent button, controller, ect.
5.Study code function makes it extreme easy to work with other accessory detectors .
6.With UPS power supply or rechargeable battery support , make it work for 48 hours under the situation of no electricity .
7.With 90 defense zones, wide and strong protection .