... 4 wired zone Product name:home GSM alarm system with two-voice communicationModel:REH322Main features: 1. ... Can set HOME arm/AWAY arm4.When alarming, system plays the recorded voice at first, call ... panic from long distance.7.Can control the system by using a telephone or cell phone anytime, ... support all kinds of wireless sensors, such as PIR detectors, door (gap) sensors, gas sensors,smoke sensors, ...