Power supply
Micro USB 110/220VAC to 5V, 1000mA
Backup battery
3.7V 500mAh Lithium Battery
Siren output
<500mA high volume mode/ low volume mode
RFID Reader
125KHz/EM4100 Family(with s reading distance of 1-2cm)
Cellular
850/900/1800/1900MHz(for 2G model)
Operating Temperature
-10~55℃
Contact ID
1400-2300Hz DTMF(10 cps) 1400Hz