10 Best Propane Detectors 2025 in the United States

The Kidde Carbon Monoxide Detector is a solid choice for anyone needing protection against carbon monoxide and explosive gases. Its easy installation is a major plus, as you simply plug it into a standard outlet, making it user-friendly even for those who aren’t tech-savvy. The included 9-volt battery backup is a significant strength, ensuring that the device remains functional during power outages, providing peace of mind when you need it most. The digital LED display clearly indicates gas levels, which is helpful for monitoring your environment at a glance. The loud 85-decibel alarm is effective at alerting you to any dangerous gas presence, and the Peak Level Memory feature is an excellent addition, allowing you to track past gas detection events. The Test-Hush Button simplifies maintenance by letting users test or silence the alarm with ease, which is great for reducing unnecessary panic from false alarms.

This detector does have some limitations. Being a plug-in model, it requires proximity to an outlet, which can restrict placement options. If you have a large space or want to cover multiple areas, you might need several units. The recommended lifespan of 7 years means you'll need to plan for replacements, especially if you’re not keen on monitoring the date closely. Additionally, while the unit is UL Listed, users should ensure that it's placed in appropriate locations as specified in the installation guidelines for optimal effectiveness.

The Kidde Carbon Monoxide Detector is a reliable option for households concerned about gas safety, particularly for those who prefer straightforward, user-friendly devices. It suits individuals and families looking for basic protection against harmful gas exposure, though those with larger spaces or specific installation needs should consider additional options.

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.

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.