"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/3G/4G
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 D size batteries (not included), on standby can last for up to 5 years"

"Smart GSM outdoor alarm host (main unit)
Power: DC 4.5V(3*LR20 D size Super alkaline)
Volume: 110dB
Wireless transmission distance: ≤100m (open space / no interference)
GSM gateway：850 / 900 / 1800 / 1900MHz
Temperature: -10°C +55 °C
Infrared Detectors
Power: DC 3V (a 3V CR123A battery)
Wireless transmission distance: ≤100m (open space / no interference)
Password keypad
Power: DC 3V (two 3V 2032 button cell)
Wireless transmission distance: ≤100m (open space / no interference)
Magnetic door contact
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)

Water immersion detector
Power: DC 3V (two 3V 2032 button cell)
Wireless transmission distance: ≤100m (open space / no interference)
SOS button(panic button)
Power: DC 3V (two 3V 2032 button cell)
Wireless transmission distance: ≤100m (open space / no interference)
"