Mains-powered wireless carbon monoxide detector for indoor use, CO detection via integrated chemical sensor with high accuracy and up to 10-year service life, alarm triggered at dangerous CO concentration levels starting from approx. 50 ppm, power supply via 110?240 V AC with built-in backup battery, support for interconnected fire alarms within the Ajax system, wireless communication via Jeweller protocol with a range of up to 1500 m in open space, integrated 85 dB siren and LED status indication, indoor use only, scope of delivery: FireProtect 2 AC (CO) Jeweller, SmartBracket mounting plate, built-in backup battery, connection terminals, mounting kit, quick start guide.