These two 1994 First Alert Smoke Fire Detectors are a reliable and essential equipment for any business or industrial facility. The detector is designed to detect smoke and fire in the kitchen area and provide accurate and timely warnings to protect lives and property. The model SA88 is equipped with a light test feature that allows for easy testing and maintenance. This smoke detector is manufactured by First Alert, a trusted brand in the fire protection industry. It is specifically designed for use in kitchens and other areas where fire risk is high. The detector is easy to install and features a compact design that blends seamlessly with any facility decor. These both come with 9 volt batteries but they may not be good still because these are an older model on New, sealed smoke detectors. 2 pack, ready for use!