FS-558/RF Wireless optical smoke detectorThe smoke detector detects smoke particles and has a built-in temperature sensor to provide an early warning in the event of a fire. The advantage of an interconnected fire alarm system is that all fire alarms sound at the same time, not just the one closest to the source of the fire. Supplied with battery and plug and screw for mounting.- Easy to program with the self-learning system - Connect up to 12 units- Pause function - silence the alarm temporarily for 10 minutes< br />- Signal at low battery voltage- Compatible with Nexa Bridge (control unit)- The fire alarm closest to the fire has a different alarm signal to the others, which makes it easier to locate the fire- Dust cover included< br />- Instructions for use in Swedish and English are in the packaging. Norwegian, Danish and Finnish user manual available at nexa.se- Performance declaration: NEXA13215-CPR-01 available at nexa.se- Certified by Intertek; EN 14604:2005Smart home functionUse the fire alarm FS-558/RF with the Nexa Bridge and you can easily create an automation that starts when the fire alarm is activated.< br />For example, a notification can be sent to the mobile, sirens are activated or lights are turned on.Technical dataPower source: 2 x AA (alkaline batteries) includedRadio frequency: 433 MHzRange: Up to 20 metersAlarm signal: 85 dB at 3 metersTemperature sensor: 54-70 °C (EN-54)Operating temperature: 5- 45 °CHumidity: 10-90%Dimensions: Ø 120 mm (25 mm high)E number: 6301776Product document