FireAngel Optical Smoke Alarm with 10 Year Sealed For Life Battery, FA6620-R-T2 - Twin Pack, White & Heat Alarm with 10 Year Sealed For Life Battery, FA6720-R (HT-630 replacement, new gen)
FireAngel FA3313 Carbon Monoxide Detector and Alarm with 1 Year Replaceable Batteries & Heat Alarm with 10 Year Sealed For Life Battery, FA6720-R (HT-630 replacement, new gen)
FireAngel FA6813-EUX10 FA6813 Carbon Monoxide Detector & Alarm with Replaceable Batteries & Heat Alarm with 10 Year Sealed For Life Battery, FA6720-R (HT-630 replacement, new gen), White