Two smoke detectors and a carbon monoxide detector for less than 20 quid looks like a good deal might save your live, saved mine!!!
Kidde Smoke Alarm Pack of 2 + Carbon Monoxide Alarm
A great set to provide household protection from smoke, fires, and carbon monoxide.
2 x Compact Smoke & Fire Alarms
Sealed in power source means minimal maintenance.
Test button to test the battery and the alarm.
9v Battery supplied.
BSI Kite marked.
3 Year alarm warranty.
1 x C.O. (Carbon Monoxide) Alarm. Compact and easy to fit, providing discreet protection. It has a loud, 85db alarm and end of life warning signal.
A digital display shows the C.O. levels and the unit features a test /reset feature.
Approved to BSI (EN50291) with a 7 year warranty.