Features10 years mini smoke alarm:With fixed installed 10-years long-life lithium battery.Hush function. Fixing kit available for screwless installation.
BenefitsSensor type: Optical smoke detectionBattery: Lithium CR123A 3V, 1600mAhSound level: around 90db at 3 metersTemperature of function: +4 degrees Celsius to + 38 degrees CelsiusHumidity max level of function: +90% Relative Humidity without condensation30 days low battery warning