Power Supply: Low-consumption battery operation
Notification: Phone call, text alert and 110db on-site siren
Supports up to 8 programmable phone numbers
Low battery alert via text message
Radio Frequency: 868MHz
GSM network:2G
Transmitting Distance: ≤ 100m (open area / no interference)
Mode: Arm/disarm/arm stay/arm away (SMS & phone call supported)
Support customizing settings:Arming delay ,alarm delay ,alarm duration,alarm siren
Operation Condition: Temperature -10°C / 14°F ~ +55°C / 131°F
Built-in red LED warning light in the main unit
Supports up to 32 accessories
Customizable zone names via mobile phone SMS
Supports up to 8 emergency contact phone numbers
Support for delayed defense and delayed alarm
Three CR123A batteries , on standby can last for up to 1 years

Smart GSM alarm host (main unit) 

Power: DC 6V(two 3V CR123A battery )
Volume: 90dB
Standby current: 170uA
Temperature: -10°C +55 °C
GSM gateway:850 / 900 / 1800 / 1900MHz
Passcode keypad
Power: DC 3V (two 3V 2032 button cell)
Wireless transmission distance: ≤100m (open space / no interference)
Doorbell button
Power: DC 3V (two 3V 2032 button cell)
Wireless transmission distance: ≤100m (open space / no interference)
Magnetic door sensor
Power: DC 3V (two 3V 2032 button cell)
Wireless transmission distance: ≤100m (open space / no interference)
Smoke detector mate
Power: DC 3V (two 3V 2032 button cell)
Wireless transmission distance: ≤100m (open space / no interference)
Infrared Detectors
Power: DC 3V (a 3V CR123A battery)
Wireless transmission distance: ≤100m (open space / no interference)