4 line Wireless Terminal 1)lock card,lock terminal 2)support polar-reverse,12 or 16 KHz pulse signal 3) ... cellular network outgoing.2,GSM cellular network incoming.3,DTMF Caller ID.4,Support secondary dial.5,Lock card, lock terminal.6,Send ... : GSM 900MHZ/1800MHZ or GSM 850/900/1800/1900MHZ2,Power: ≤2 W3,Sensitivity: -104dB4,power consumption: Static ≤25mA, Transmit≤600mA5,Ambient ...