The FireAngel FA6620-R Optical Smoke Alarm in white is a reliable and cost-effective home security solution. This smoke detector from FireAngel, First Alert 3120B model, comes with a battery included for added convenience. Manufactured in China, this alarm provides peace of mind for homes with a valid expiry date of December 2034. With its sleek white design, this FireAngel smoke alarm is a essential component for home safety.