The FireAngel CO-9B carbon monoxide detector is suitable for wall mounting or left free standing as a portable device. This alarm can provide peace of mind both in the home or during your holiday. To take on holiday simply remove the batteries and place both the alarm and the batteries in your luggage, once in your holiday home simply set the alarm up again and enjoy your holiday. The FireAngel CO-9B is supplied as standard with 2 x AA batteries to power the alarm and comes with a 7 year manufacturer warranty.