Battery Operated Carbon Monoxide Detector powered by a 10 year batteryProtect your home or workplace from the silent threat of carbon monoxide with the Battery Operated Carbon Monoxide Detector, powered by a long lasting 10 year sealed lithium battery. Engineered for reliability and ease of use, this compact CO alarm features self diagnostic technology to ensure continuous performance, along with a clear power alarm indicator and a low battery warning. Its user friendly design includes a combined test and silence button