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 UEi Test Instruments CD100A Combustible Gas Leak Detector is a handy tool designed to detect a variety of gases including propane, methane, natural gas, and more. Its catalytic sensor is sensitive enough for both residential and commercial use, making it a solid choice for homeowners and HVAC professionals alike. One of its strengths is the long, flexible 18-inch gooseneck with a built-in tip light, which helps locate leaks in tight or dark spaces easily. The detector provides both audible and visual alarms through increasing beeps and flashing lights, helping you quickly identify the presence of gas.

Powering the device is straightforward; it uses 4 AA batteries that come included, and it boasts about 15 hours of battery life, so you won’t have to worry about frequent replacements during short-term use. However, it requires manual operation and warming up for 10 seconds before it’s ready, which is typical but something to keep in mind. While it is easy to carry and operate, this is a handheld detector rather than a fixed alarm system, so it’s better suited for spot checks rather than continuous monitoring.

The product is compact and lightweight, which helps in maneuvering it around appliances or pipes. It comes with a one-year limited warranty, suggesting the manufacturer’s confidence in durability. If you need a reliable, portable tool for checking propane leaks or other combustible gases in various settings, this detector offers a good balance of features and ease of use. For installation in permanent locations or for continuous gas detection, other models might be more appropriate.

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.