This is a top-of-the-line wired-in propane alarm from MTI Industries, a renowned brand in the industry. The product is made in the United States and comes with an unspecified length of warranty. It's the perfect solution for ensuring safety in your RV, trailer, or camper. This propane alarm is part of the 20 Series and has the model number -20-441-P-BL-. Its small size makes it easy to install in any location, and it's very reliable. Get peace of mind with this alarm and enjoy your travels knowing that you and your family are safe.