5 x Cavius CV2106 Wireless RF Optical Smoke Alarms 10 Year Lithium Battery Powered\nCan be utilised as part of a Grade F1 / LD2 fire alarm system to achieve compliance with the new Scottish Building regulations effective February 2022.\n--Optical smoke alarm with built in RF wireless interlink\n--Can be interlinked wirelessly with up to 32 other devices from this range - see below for link to matching heat alarm\n--Simple installation with no electrical work required\n--Confidence LED light confirms alarm is functioning\n--Test / hush button\n--Dual mesh system to avoid insect contamination\n--Very compact and unobtrusive design\n--Loud 85dB(A) @ 3m alarm tone\n--Fire alarm condition is indicated by a series of three successive continuous tones\n--Non-replaceable 10 year battery (pack of 2 CR123A Lithium batteries)\n--Estimated minimum 10 year life in normal operating condition (based on one weekly testing)\n--Low battery warning\n--Dust cover for use during building works etc\n--10 m