The Safe T Alert 30-441-P-BL Classic Propane/LP Gas Alarm is a gas detector designed for home security. With a sleek black color and compact design, this 12V battery-powered alarm is easy to install and use. It is compatible with IFTTT for added convenience and features a manufacturer warranty from MTI Industries. The alarm is lightweight at 0.5 lb and has a diameter of 1 inch, making it a reliable and efficient choice for detecting propane or LP gas leaks in your home.