Sound/soundless alarm Remote control Wireless siren remote arm/disarm synchronously Built-in siren 10 remote controller and 20 wireless accessories at most Message protection Listen in remotely Anti-cutting function Power: AC/DC power converter Output power: 9V DC, 500mA Standby current: less than 20mA Alarm current: less than 150mA Alarm receive mode: wireless transmitting output Record message: 10 seconds Preset telephone number: 6 group Telephone digits long: 16 Power consumption: standby 0.3W, alarm 1.5W Standard unit: one main panel, built-in lithium, one gas detector, one adaptor and one mechanical valve for pipeline Indoor temperature: -10 to 50°C Relative humidity: ≤, 90% Atmospheric pressure: 86 to 106kPa