10 Best Propane Gas Detectors 2025 in the United States

This 4-in-1 Natural Gas Leak and Carbon Monoxide Detector by NICGOL offers a versatile safety solution by combining detection of natural gas, propane, carbon monoxide, temperature, and humidity in one compact device. Its catalytic sensor and dual-sensor technology provide sensitive and reliable monitoring of dangerous gases, with audible and visual alarms that activate quickly when hazardous levels are detected. The alarm is loud enough (≥85dB) and includes flashing lights to ensure you notice the warning promptly, which is crucial for protecting families in homes and mobile spaces like RVs.

Powered by a standard 110V-220V AC plug, it avoids the hassle of batteries and provides continuous operation with low power consumption, making it an energy-efficient choice. The bright LCD screen offers real-time readings of gas concentration, temperature, and humidity, which can be helpful in understanding your environment beyond just gas detection. Its compact size allows easy placement in various settings without taking up much space.

Installation requires a brief calibration period to ensure accurate measurements, and there is a manual test button for peace of mind to confirm the alarm functions correctly. This model is suitable for homeowners or RV users seeking multi-threat detection with simple plug-in setup. Note that relying solely on AC power means it may not function during power outages unless additional backup power is used. Buyers should verify compliance with local safety standards if required. This detector provides a comprehensive, user-friendly way to monitor propane, natural gas, carbon monoxide, and environmental conditions, making it a strong option for general home and RV safety where power outlet access is available.

The Kidde Carbon Monoxide Detector is designed to detect propane, natural gas, methane, and carbon monoxide, making it a versatile safety device for homes that use these fuels. It plugs into a standard 120V outlet and includes a 9-volt battery backup, so it continues working during power outages. Its digital LED display is helpful because it shows the current levels of carbon monoxide or indicates the presence of explosive gases with a clear 'GAS' message. The alarm is loud (85 decibels), ensuring you’ll hear it if dangerous gas levels are detected.

Installation is very simple, just plug it in, which suits most home locations like kitchens or utility areas. Additionally, the peak level memory feature records the last detected gas levels or test times, which can be good for monitoring safety over time. On the downside, the product requires a power outlet near the installation spot, which means it may not work well in places without easy access to plugs.

This detector is well suited for homeowners wanting a reliable and easy-to-install combined gas and carbon monoxide alarm, especially in areas where multiple gas types are a concern.

The RIDGID 36163 CD-100 is a handheld propane and combustible gas detector designed to quickly find leaks from gases like methane, propane, and butane. Its standout feature is a 16-inch flexible probe, which makes it easier to detect leaks in tight or hard-to-reach places. It offers adjustable sensitivity that helps locate even small gas leaks fast, which is important for safety and maintenance. The detector alerts you through three options: visual signals, a vibration alarm, and audible sounds, providing flexibility in different working environments.

It runs on two AAA batteries, which are included, so it's portable and ready to use right away. The device is made of durable plastic and designed to be comfortable during extended use, suitable for professionals or homeowners checking gas lines. One practical aspect is its replaceable sensor, which extends the tool’s lifespan and reduces downtime if repairs are needed.

The detector relies solely on battery power, so users should keep spare batteries handy for continuous use. Additionally, while it features vibration alarms, the loudness of audible alerts might not suit very noisy job sites. This product is a solid option for those needing a reliable, easy-to-use gas leak detector, especially useful in cramped spaces and for multiple types of combustible gases.