Fireangel FireAngel FA3313-SB1-T2 CO & Smoke Alarm Twin Pack & FireAngel Optical Smoke Alarm with 10 Year Sealed For Life Battery, FA6620-R (ST-622 / ST-620 replacement, new gen), White

Product 1: This twin pack provides protection against two deadly risks in the home - fire and carbon monoxide

Product 1: The optical smoke alarm works by 'seeing' smoke as it enters the alarm - making it perfect for slow burning fires where there is thick white smoke

Product 1: The carbon monoxide alarm will detect, and provide a warning to, low levels of CO, and will provide a ventilate alert as this increases

Product 1: Pressing the large test buttons on both alarms in the event of a low battery warning will activate our sleep easy feature which silences the low battery chirp for 8 hours

Product 2: The perfect replacement for FireAngel ST-622, ST-620 and ST-750 models, this alarm will fit on to the existing baseplate, or can be installed easily using the supplied base and 2 screws

Product 2: With optical sensing technology smoke is rapidly detected as it enters the alarm chamber, for a quick reaction to slow burning fires

Product 2: The alarm comes with a sealed, tamper proof battery that will last the lifetime of the alarm. It is recommended that smoke alarms are replaced every 10 years

Product 2: Featuring a quiet test function which means you're less likely to wake up loved ones or disturb the neighbours when testing your alarms