Kidde 10LLDCO Carbon Monoxide Alarm with 10 Year Battery & Digital Display - £23.88 inc VAT
CPVAN Wireless Carbon Monoxide Detector with Digital Display, Carbon Monoxide Alarms for Home Safety, CO Alarm with 7 Years Sensor Life, EN 50291, Replaceable Batteries (AA Batteries Included). 1 Pack : Amazon.co.uk: