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 SAFE T ALERT 30-442-P-BL is designed specifically for RVs, making it a solid choice for those seeking a reliable propane detector. One of its standout features is its compliance with RVIA requirements, ensuring it meets safety standards for use in recreational vehicles. The alarm operates on battery power, providing flexibility in installation and eliminating the need for hardwiring, which can be a plus for DIY enthusiasts. The flush mount design helps it fit seamlessly into your RV's interior, maintaining aesthetic appeal.

A practical test/reset button allows users to check the detector's functionality with ease, and the mute function is handy during non-hazardous situations. It’s reassuring to know the alarm will still alert you if dangerous levels of propane are detected, even during the mute cycle. The UL listing adds a layer of credibility, indicating that it has been tested for safety.

There are some drawbacks to consider. The absence of batteries included with the unit means you’ll have to purchase them separately, which could be an inconvenience. Additionally, being a battery-powered device, there’s also the potential for battery replacement over time.

The KOABBIT Combination Gas & Carbon Monoxide Detector is a versatile 4-in-1 device that monitors propane, natural gas, carbon monoxide, temperature, and humidity. One of its notable strengths is the real-time digital display, which provides users with immediate information on gas levels and environmental conditions. This feature adds a layer of convenience and peace of mind, especially for those living in areas where gas leaks might pose a risk.

The detector operates on a plug-in power source, eliminating the need for batteries, which can be a hassle to replace. With an 85dB alarm, it effectively alerts users to dangerous gas levels, making it suitable for home use, kitchens, or RVs. Its lightweight design (only 0.05 pounds) also makes it easy to install in various locations without taking up much space.

There are a few considerations to keep in mind. While the 4-in-1 functionality is a major benefit, the sensitivity of the sensor may vary based on environmental factors. Some users have noted that it occasionally gives false alarms, particularly in high-humidity areas.