This battery-operated carbon monoxide alarm features a 10-year sensor life and includes 2 replaceable AA batteries. It utilizes an intelligent algorithm for heightened sensitivity and provides rapid alerts. The memory function indicates previous alarm activations. The alarm is equipped with an advanced electrochemical sensor, calibrated and tested in CO gas, and supports data logging via cable. It has an integrated mounting bracket and conforms to BS EN 50291-1:2018 and BS EN 50291-2:2019 standards. Carbon monoxide (CO) is a poisonous gas emitted from defective household items that burn fuel incompletely, such as ovens, boilers, BBQs, open fires, gas heaters, and blocked chimneys. CO is undetectable by smell, taste, or sight, making an audible CO alarm essential for safety. FireAngel designs its CO detectors in-house and rigorously tests them to ensure the highest standard of protection for your family and home. They are also third-party certified, tested, and Kitemark Approved by BSI. This alarm is suitable for domestic premises including static and mobile homes, caravans, motor caravans, and boats in England, Wales, and Northern Ireland. It is not suitable for homes in Scotland. Features include Kitemark approval to BS EN 50291-1:2018 and BS EN 50291-2:2019, as well as UKCA & CE marking. The large test button activates a 'sleep easy' feature, silencing low battery chirps for 8 hours. The CO sensor detects low levels of CO and provides a 'ventilate' alert as levels increase. A red LED flashes after an alarm event, notifying you of past risks even if you were away. The alarm is supplied with 2 x AA batteries that can be replaced when a low battery warning is heard. Specifications: Dimensions: H:11.9 x W:6.2 x D:3.8 cm, Colour: White, Guarantee: 5 years, Model Number: FA3313-EUX10.