1.wireless gsm home alarm system 2.10s ISD message record 3. ... function 4.4 wire,6 wireless zones wireless gsm home alarm systemFeatures:1. 4 wire / 6 wireless zones2. ... record automatically6.Built-in human intelligent digital voice machine7.Alarm lock memory8.Leave arm, At home arm, remote ... AC, DC to be used, 24-hour continuous work16.Alarm panel tamper, low voltage self-checking function. Technical ...