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 TopTes PT-830S gas leak detector is a solid choice for anyone needing to detect propane and other combustible gases at home or in industrial settings. It uses a precise Figaro sensor that measures gas levels up to 10,000 ppm, which is helpful for spotting even small leaks. The 14.5-inch flexible probe lets you reach tight or hidden spaces where leaks might occur. It runs on a rechargeable lithium polymer battery, providing about 8 hours of use—so you won’t need to keep buying batteries and can quickly recharge it via USB-C.

One of its strengths is the three alarm options: a loud 90dB buzzer, flashing lights, and vibration. You can turn each on or off depending on your environment, and there's a mute button to silence alerts when needed, avoiding unnecessary noise. The large color TFT display shows gas levels, battery life, and settings clearly, even in dim lighting, making it user-friendly. Additional handy features include adjustable sensitivity to fine-tune detection, zero calibration for accuracy, data storage of past readings, and a built-in flashlight, which can be useful in dark working areas. The device is designed to be durable and safe for rugged conditions with dust-proof and explosion-proof properties.

It may be more suitable for specialized or industrial use rather than casual users, given its industrial-style design and price point. Also, it doesn't mention formal safety certifications, which some users might consider important for peace of mind. Installation is manual and handheld rather than fixed, so the device is best for spot checks rather than continuous monitoring. The PT-830S is a reliable, versatile propane detector with professional-level features that benefit both homeowners concerned about gas safety and industrial users needing detailed gas leak detection. Its flexible probe and multiple alarms stand out, but those looking for a simple, always-on home alarm might want to consider other options.

The RV Dual LP/CO Alarm by Leakbee is a versatile propane and carbon monoxide detector specifically designed for RVs, motorhomes, and campers. It features two highly sensitive sensors that can effectively detect leaks, ensuring safety during your travels. The device is hardwired to a 12V DC power supply, which means it doesn’t rely on batteries – reducing maintenance hassle. The alarm system is both visual, with a digital LED display, and audible, emitting an 85-decibel warning sound which is loud enough to alert anyone nearby to the danger of a gas leak or high carbon monoxide levels.

Installation is made easier with lever-nut connectors, minimizing the time spent on wiring, and it comes with three different mounting brackets to fit various installation needs – a great plus for compatibility with different RV models. Moreover, it meets UL1484 and UL2034 safety standards, adding an extra layer of reliability and trustworthiness.

On the downside, since it’s hardwired, installation might be more challenging for users without electrical experience, and it requires a continuous power supply. However, this configuration ensures it remains consistently operational. This detector offers solid performance and user-friendly features that make it an excellent choice for ensuring safety in your RV or camper.