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 Carbon Monoxide and Propane Detector by Leakbee offers a dual-sensor design specifically for RVs, including motorhomes, travel trailers, and truck campers. This model, the R503, is designed to detect both carbon monoxide and propane gas leaks, ensuring a high level of safety with its UL1484 and UL2034 certifications. It operates on a 12V DC power source, making it compatible with typical RV electrical systems. The device features a loud 100dB alarm and a digital LED display that provides real-time gas level readings, which helps users stay informed about potential dangers.

Installation is simplified with lever nut connectors and compatibility with existing cutouts for the Atwood 31011, making it a straightforward replacement option for older models. The compact size (4.64” x 4.64” x 0.78”) and lightweight design (4 ounces) make it unobtrusive in an RV setting. However, potential buyers should ensure that the installation location allows for easy viewing of the LED display. One of its strengths is the combination of both visual and audible alarms, which can effectively alert users to gas leaks even if they are not close to the detector.

One downside is the lack of a battery backup, which means it won’t function during power outages unless connected to another power source. While it is a highly-rated and well-received product, those looking for a device with battery backup or more advanced features might need to consider other options.

The Tadeto RV Carbon Monoxide and Propane Gas Alarm is designed specifically for use in RVs, trailers, and campers, providing combined detection of carbon monoxide (CO) and propane gas. This integration means you don't need separate devices for each gas, offering convenience and safety. It features high-sensitivity electrochemical sensors that quickly identify even small leaks or rising gas levels, helping protect you from invisible dangers.

The alarm alerts users with a loud 85-decibel sound and a flashing red light, ensuring notifications are noticed even in noisy environments or while asleep. Its clear backlit display shows gas levels in real-time with large numbers for easy monitoring at any time. Powered by a 12V DC hardwired source, common in RV setups, it eliminates concerns about battery replacements. Installation is straightforward with included screws, Velcro options, and a connector that avoids messy tape or wire wrapping, making mounting safer and easier. It requires an existing 12V power supply, so compatibility with your RV’s wiring is important.

Weighing about 4.5 ounces with a compact size, the unit occupies minimal space. This Tadeto model has received positive user reviews for its reliability and ease of use. For RV owners seeking a dependable, dual-function gas alarm that’s easy to install and monitor, it represents a solid choice.