... wireless alarm system,wireless alarm,home alarm system,alarm with LCD dispaly,with voice Newest 98 zones wireless alarm system,wireless ... alarm,home alarm system,alarm with LCD dispaly,with voice8 wired & 90 wireless compabile zones alarm system ... : -15~ +55degree Relative humidity ≤ 90% Package:1. Alarm host ( with back-up battery inside ) 1 PCS 2. Wireless door sensor 1 ...