Wireless heat and smoke alarm, set of 2, battery operated, for connection to a network, Hx 48 x 125 mm. Supplied = pre-assembled, final assembly by customer. Height = 48 mm. Width = 125 mm. Depth = 125 mm. Set of 2 radio heat and smoke alarms for wireless connection to a network. Warning about smouldering fires, for example, even before flames develop. Audible alarm: warning is a loud 85 dB. Reliable due to photoelectric smoke detection and heat sensor. Set of 2, battery operated and for connection to a network, incl. 2 magnetic plates. The combination of smoke detection and heat sensor guarantees reliable and fast detection of fires. Even slow, smouldering fires are detected at an early stage. For across the board safety: connect up to 30 detectors in a network. If one of the devices detects a danger, all others also sound the alarm! The range of 20 m means the warning reaches every corner of your premises (radio frequency: 433 MHz) Always audible in an emergency: at an impressive 85