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10 Best Propane Detectors 2025 in the United States

#1

Winner

9.8 score

Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display

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.

Rating
9.8
Chosen by1,388
Sensitivity
Power Source
Alarm Type

Most important from
16045 reviews

Sensitivity
Perfect for a detached garage, detecting smoke, CO, natural gas, and propane with a clear display showing levels even when they're too low to trigger the alarm.
Power Source
Easy installation as it plugs directly into an outlet, with the option to detach the power supply and mount the alarm elsewhere.
Alarm Type
The alarm is loud enough to be heard from eight feet away, ensuring safety even in larger spaces.
Installation Location
Perfect for a detached garage, detecting smoke, CO, natural gas, and propane with a clear display showing levels even when they're too low to trigger the alarm.
#2
9.6 score

Combination Gas & Carbon Monoxide Detector, Plug in Carbon Monoxide Alarm,Natural Gas Detector,Propane,Methane,4-in-1 Combustible Gas & CO Detector with Fahrenheit(°F) & Humidity for Home,RV,Apartment

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.

Rating
9.6
Power Source
Installation Location

Most important from
332 reviews

Power Source
Just plug these in and they talk to you, giving positive confirmation that they are working.
Installation Location
Works great in the kitchen where natural gas is used and near a gas grill under a covered porch.
#3
9.3 score

RV Dual LP/CO Alarm, RV Carbon Monoxide & Propane Detector, Hardwired-12V DC with 3 Different Brackets for Motorhome Travel Trailer, Motor Coach, Truck Camper (R502 Black)

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.

Rating
9.3
Power Source

Most important from
100 reviews

Power Source
The device powers up and runs diagnostics smoothly, displaying a clear zero when everything is okay.

Top 10 Best Propane Detectors 2025 in the United States

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Buying Guide for the Best Propane Detectors

When it comes to choosing a propane detector, it's essential to understand the key features and specifications that will ensure your safety and meet your specific needs. Propane detectors are crucial for detecting leaks and preventing potential hazards in homes, RVs, and other spaces where propane is used. By understanding the different specifications, you can make an informed decision and select the best propane detector for your situation.
SensitivitySensitivity refers to the detector's ability to detect low levels of propane gas. This is important because early detection of a leak can prevent dangerous situations. Sensitivity is usually measured in parts per million (ppm). Detectors with higher sensitivity can detect smaller amounts of propane, providing an early warning. For general home use, a sensitivity of around 500 ppm is typically sufficient, while more sensitive detectors (100-300 ppm) are better for environments where even a small leak could be hazardous, such as in RVs or near gas appliances.
Power SourceThe power source of a propane detector can affect its reliability and convenience. Detectors can be powered by batteries, hardwired into your home's electrical system, or plugged into an outlet. Battery-powered detectors offer flexibility in placement and continue to work during power outages, but require regular battery changes. Hardwired detectors are more permanent and don't need battery replacements, but may not work during power outages unless they have a battery backup. Plug-in detectors are easy to install and move, but are dependent on the availability of an outlet. Choose a power source that fits your lifestyle and ensures continuous operation.
Alarm TypeThe alarm type refers to how the detector alerts you to the presence of propane. Common alarm types include audible alarms, visual indicators (like flashing lights), and even smart notifications sent to your phone. Audible alarms are crucial for immediate awareness, especially if you are asleep or in another room. Visual indicators can be helpful for those with hearing impairments or in noisy environments. Smart notifications are useful if you want to be alerted even when you are not at home. Consider your household's needs and choose a detector with an alarm type that ensures you will be promptly alerted in case of a leak.
Installation LocationThe installation location of a propane detector is important for effective monitoring. Propane is heavier than air and tends to settle near the floor, so detectors should be installed low to the ground, typically within 6-12 inches of the floor. For RVs, place detectors near propane appliances and sleeping areas. In homes, install detectors in rooms where propane is used, such as kitchens and near gas fireplaces. Ensure the detector is placed in a location where it can effectively monitor for leaks and provide timely alerts.
CertificationCertification indicates that the propane detector meets certain safety and performance standards. Look for detectors that are certified by recognized organizations such as Underwriters Laboratories (UL) or the Canadian Standards Association (CSA). These certifications ensure that the detector has been tested for reliability and effectiveness. Choosing a certified detector provides peace of mind that the product meets high safety standards and will perform as expected in detecting propane leaks.

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