Wireless fire detector with heat sensor for indoor use, alarm triggered by a temperature increase of approx. 10 °C within one minute or when exceeding approx. 64 °C, support for interconnected fire alarms within the Ajax system, wireless communication via Jeweller protocol with a range of up to 1700 m in open space, integrated 85 dB siren and LED status indication, RB version with replaceable batteries, indoor use only, scope of delivery: FireProtect 2 RB (Heat) Jeweller, SmartBracket mounting plate, mounting kit, 2 × CR123A battery (pre-installed), quick start guide.