Fireangel Combination Smoke and Carbon Monoxide Alarm Clipon With this 80 Watt solar Maximum space efficiency across With this 80 Watt solar panel you could expect to generate around 22 amps per day during the summer months supplementing the 12V leisure battery power in caravans Before using your FTX14 BS YTX14 BS battery for the first time Combination Smoke and Carbon Monoxide Alarm 10 Year Sealed Lithium Battery The SCB10 R combination alarm has been designed to protect against fire and CO It has clear indicators and alerts to allow you to see which is present when the alarm sounds 10 Year Sealed for life battery 3 Year warranty Designed for wall or ceiling mounting with simple installation Equipped with test and hush button 30 day low battery warning LED light to indicate power and alarm mode Loud 85 decibel alarm EN 14604:2005+AC:2008 EN 50291 1:2018 Dimensions 134mm (diameter) x 39 4mm(depth) Supply voltage 3V DC