10 Best Propane Detectors 2025 in the United States

The Kidde Carbon Monoxide and Explosive Gas Detector is designed to enhance home safety by detecting propane, natural gas, methane, carbon monoxide, and explosive gases. It’s easy to install—just plug it into a standard 120V outlet—and it includes a 9-volt battery backup to maintain operation during power outages, ensuring continuous protection. The digital LED display clearly shows gas levels or alerts you when explosive gas is present, making it straightforward to understand the situation at a glance. Its alarm is loud (85 decibels), which should be sufficient to wake most people in case of danger.

This device stores peak gas level readings and remembers the last test time, helping you keep track of your home’s safety history. Kidde is a trusted brand known for reliable detection, and this model covers multiple gases effectively, providing a convenient all-in-one solution. The plug-in power source with battery backup reduces the need for frequent battery replacements, though keeping a 9V battery on hand is recommended. One consideration is that it requires installation near an outlet, which might limit placement options compared to battery-only models.

Kidde products typically meet safety standards, which reassures quality and reliability. This detector is well suited for homeowners seeking a dependable, multi-gas alarm that’s easy to set up and maintain, especially if monitoring propane alongside other common household gases is desired.

The RV SAFE RVLP-2B propane gas alarm is designed primarily for RV owners who need a reliable and easy-to-install safety device to detect propane leaks. Its electrochemical sensor offers good sensitivity in spotting propane gas, which is important for early warning. This model is battery powered, making it convenient for RV use where wiring might be limited, although regular battery checks are necessary to ensure it stays operational. The alarm is audible, providing a clear and loud alert if propane is detected. Installation is straightforward with included universal mounting brackets, and the alarm is meant to be surface mounted on walls or ceilings inside the RV.

It carries UL certifications (UL 1484 and 2034), which means it meets safety standards for propane detection and carbon monoxide alarms, adding to its trustworthiness. The device is compact and lightweight, so it won’t be obtrusive in small spaces. One minor drawback is that being battery powered, it depends on battery life (rated for about 5 years) and needs periodic replacement. This propane alarm offers dependable detection and easy installation, making it a solid safety addition for RV users concerned about propane leaks.

The Safe-T-Alert by MTI Industries 35-742-BL Dual LP/CO Battery Powered Alarm is a versatile device that detects both propane (LP) and carbon monoxide (CO) gas leaks simultaneously, adding an extra layer of safety. It operates on a 12V battery, eliminating the worry about changing or missing batteries, which is convenient for continuous use. The flush mount design allows it to blend seamlessly into walls or ceilings, making it less obtrusive in your home or RV.

The alarm is audible, ensuring that you're promptly alerted to any danger. It's built to withstand a wide range of temperatures, from -40°F to 158°F, which makes it reliable in various climates. The product meets RVIA and NFPA requirements and is UL listed, ensuring high safety standards. However, it’s important to note that the device is battery-powered, which could be limiting if you prefer a hardwired option. The plastic construction, while durable, might not appeal to those who prefer metal devices for their perceived longevity.

Additionally, the product dimensions are relatively large at 2 inches in depth and 10 inches in width, which could be a consideration for some installation spaces. The alarm type is photoelectric, which is effective but may be slower in detecting fast-burning fires compared to ionization alarms. This propane detector is a reliable choice for those looking for dual protection in a single device, particularly well-suited for RV owners and those needing an easy-to-install solution.