Featuring a sealed 10 year battery and 10 year manufacturer's warranty, the UltraFire ULLH10RF heat alarm provides constant detection at all times without the cost of an electrician to install. Part of the wireless ULLRF series, these alarms can interlink with 14 other alarms throughout the house using radio-frequency so that all connected alarms activate if one of them detects a possible fire, warning all occupants to the emergency. Ideal for rooms regularly exposed to dust, steam, or fumes like kitchens and garages, where traditional smoke alarms would suffer false activations.