GSM+PSTN Alarm System        
Adaptor: Input: AC 110-240V / 50-60 Hz    
               Output:DC 5V/1A
GSM Frequency: 850/900/ 1800/1900MHz
Wireless Freq: 315/433/868MHz 
                           ZigBee/Zwave（optional）
Standyby Current: <70mA
Alarm Current: 340mA                      
Inside Buzzer: 90dB at 1m
Backup Li Battery: 3.7V/1500mAh x 1 
Material: ABS
Working Temperature: -10°C~55°C 
Humidity: ≤ 80%
SIZE: 129.5x95x27.5mm

--------------------------------------------------------------------
-Quad-band GSM module, 850/900/1800/1900MHZ
-Support GSM and PSTN communication
-Frequency 315/433/868MHZ optional, Zigbee/Zwave optional
-Support 30pcs remote, 3 wirless alarm zones, each supports 99pcs sensors
-1 hardwired alarm zone
-Support 5 Tel numbers, 5 message numbers and 2 CMS Tel numbers
-Remote Arming/Disarming with Message, Call, APP
-LCD display, Friendly operation system
-Programable +5VDC output (for Electromagnetic Lock)
-Alarm issue, Power failure and low battery reminder
-Built-in speaker
-Built-in microphone
-Built-in alarm buzzer
-Built-in lithium 1500mAh battery