Carbon Monoxide CO 85DB Alarm Detector Certified - Digital Carbon Monoxide Detector protects your family at home and on holiday (Easy installation, portable, ideal for travelling). Product Features: •Extra loud 85 decibel and visual alarm •EN50291 Compliant •No wiring necessary •Alkaline battery and fixing screws included •Low battery and unit end–of-life warning •Safety feature - cannot be fitted with battery missing •Test button with hush facility •Warning signal if fault detected •Electrochemical sensor •Three LED’s to indicate different status. Power (green), Alarm (red), Service (yellow) •Colour: White