Dewlora 4 In 1 CO Detector Customer Reviews

If you’re considering purchasing our Dewlora 4 In 1 CO Detector, we encourage you to take a moment to listen to what our customers have to say.

We greatly value your feedback and would love to hear your own stories and experiences after using our Dewlora 4 In 1 CO Detector.

Customer reviews

4.96
Based on 130 reviews
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All stars (130)
Conan Jo
We recently upgraded to gas appliances in our home, including a high-efficiency stove and a gas water heater in the utility room. With young kids in the house, safety was my biggest anxiety, so I wanted something that covered all the bases without having to install three separate units. The Dewlora 4-in-1 detector has been incredible. It plugged right into our kitchen outlet, took just a couple of minutes to calibrate, and immediately gave us a clear digital readout. It gives me tremendous peace of mind knowing it monitors carbon monoxide and gas leaks simultaneously.
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Haley Lily
I bought this unit specifically for my garage where I keep my fuel-burning tools and lawn care equipment, as well as near our home furnace. What impressed me right away was how straightforward it is to use. You literally take it out of the box, plug it into the wall, and let it complete its quick warmup sequence. The screen is bright enough to read from across the room without being overly distracting at night. Testing the alarm showed just how loud that 85dB horn is. It will definitely wake up anyone in the house if there is ever an emergency.
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Reva
Living in an older home with older heating pipes, I always worried about subtle natural gas leaks that might go unnoticed. I decided to try the Dewlora 4-in-1 monitor near our basement utility corner. A few weeks after installing it, the digital screen started displaying elevated numbers before anyone in the house could smell anything unusual. We ventilated the area, shut off the line, and had a technician come out to tighten a loose fitting. This little wall-plug device paid for itself ten times over in a single afternoon.
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BadBart
The plug-and-play design is the best part about this product. I am not handy with tools at all and didn't want to hire an electrician to wire up ceiling alarms. With Dewlora, I just found an open outlet in our main hallway, plugged it in, and let it run. It sits flush against the wall and leaves the top outlet open for other electronics. The build quality feels solid, and knowing it handles CO, propane, methane, and natural gas all in one compact casing makes it a no-brainer for any homeowner.
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GLENN R
I purchased three of these detectors to cover our kitchen, basement, and upstairs hallway near the bedrooms. The real-time LED display is a fantastic feature because you do not have to guess whether the device is active or working properly. You can see the live reading right on the screen. The monthly button test is super quick and gives a reassuringly loud response. It is rare to find a device that combines multi-gas monitoring with such user-friendly operation at this price point.
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krager5
As someone who uses propane space heaters in the workshop during the winter months, gas safety is a huge priority for me. The Dewlora monitor was recommended to me by a friend, and it has exceeded expectations. It powers directly off the wall outlet, so I never have to worry about dead batteries failing in the middle of the night. The continuous monitoring feature gives me total confidence when working late hours with heating equipment running nearby.
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Greg
We installed this detector right above our kitchen counter near our gas stove and oven setup. My favorite feature is how clean and modern it looks on the wall compared to bulky traditional alarms. The screen provides instant visual feedback, and the setup took zero effort. It calibrated within minutes after plugging it in, and we haven't had a single false alarm from basic cooking steam. It is a very well-engineered safety product for any modern kitchen.
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Szoo
I bought this for my elderly parents who still live in a home with a gas furnace and gas water heater. They often forget to check battery-operated smoke and CO alarms, so having a reliable unit that plugs straight into the wall was a necessity. They love the big, bright digital display because it is super easy for them to read without putting on their glasses. It gives our entire family huge relief knowing their home is protected against invisible gas leaks round the clock.
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Bryn
The design of this detector is exceptionally practical. Many plug-in electronics are so bulky that they block the adjacent outlet socket, but Dewlora was designed smartly to leave plenty of clearance. The LED screen is crisp, the readings update smoothly, and the built-in test button allows you to verify the alarm functionality in seconds. It is easily one of the most practical home improvements I have made this year.
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Nick
I bought this to replace an old ceiling-mounted carbon monoxide alarm that kept chirping due to low batteries. The transition to a wall-plug unit like Dewlora was the best decision. No more climbing ladders to change batteries or waking up in the middle of the night to random low-battery beeps. It draws steady AC power, looks sleek on the wall, and tracks four different gas risks simultaneously.
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CVuPlay
Our utility room houses our furnace, water heater, and main gas lines, making it the most critical spot in the house for gas monitoring. The Dewlora detector fit perfectly into the outlet right next to the utility doorway. The setup was effortless, taking under three minutes for the sensors to initialize. The display is clear and readable, giving us complete peace of mind whenever we pass by the utility area.
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Avid reader and shopper
What drew me to the Dewlora 4-in-1 was the ability to detect multiple types of gas along with carbon monoxide. Most standard hardware store alarms only track CO, leaving you blind to natural gas or propane leaks. Plugging this unit in near our laundry area and gas dryer gave us full coverage. The device initializes smoothly, the instructions are crystal clear, and the overall operation is completely hands-off once it is plugged in.
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felix
I travel frequently for work and wanted a reliable multi-gas detector for our home while I am away. The Dewlora detector gives my family continuous protection without requiring any technical setup. The 85dB alarm is exceptionally piercing and guaranteed to alert anyone in the house immediately. I also appreciate that the flat design keeps it close to the wall so it does not get bumped when walking down narrow hallways.
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JShay
We have a cabin in the mountains that uses propane for heating and cooking, which always made me a bit nervous during winter stays. I brought two Dewlora units up on our last trip and plugged them in near the kitchen and sleeping quarters. They powered right up and performed flawlessly. Having real-time digital monitoring for propane leaks as well as carbon monoxide makes staying at the cabin feel so much safer for everyone.
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Michael P. Palya Sr.
I am extremely impressed with the sensitivity and responsiveness of this unit. We had a minor propane issue near our outdoor grill line near the patio door, and the unit plugged in nearby registered the trace concentration right away. The loud chime and flashing visual warnings make it impossible to miss an alert. It is an essential safety product for any residence using gas appliances.
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D. Burnham
This product offers incredible value for what it does. Buying individual detectors for CO, natural gas, and propane would cost significantly more and take up multiple wall sockets around the house. Dewlora combines everything into one single, attractive package. It plugs directly into the wall, turns on automatically, and runs continuous diagnostics without needing any ongoing maintenance.
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R. Schmidt
As a landlord, safety in my rental properties is paramount. I decided to install Dewlora 4-in-1 detectors across all my units that feature gas heating. My tenants love how simple they are to understand with the digital readout, and I love that they plug directly into wall sockets so tenants do not accidentally remove batteries. It is an affordable, high-quality solution for property managers and homeowners alike.
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Steve RJ
We recently renovated our kitchen and installed a commercial-style gas range. Wanting top-tier protection, we chose the Dewlora 4-in-1 monitor. It looks modern, sits flush against the backsplash outlet, and operates silently in the background. The digital display lets you verify air quality at a glance, and the simple test button makes monthly safety checks completely painless.
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R. Prosser
I was skeptical about plug-in multi-gas detectors at first, but Dewlora proved its worth immediately. The sensor warm-up cycle is quick, the screen readout is sharp, and the unit feels durable and well-crafted. It gives us accurate, 24/7 surveillance over carbon monoxide, methane, propane, and natural gas without taking up counter space or requiring custom wiring.
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lmv
Living in a home with an attached garage means vehicle exhaust and gas storage are constant considerations. I installed a Dewlora detector on the wall right inside the entry door from the garage. It provides an instant barrier of protection, monitoring for CO and fuel vapors continuously. The loud alarm ensures we would know immediately if fumes ever drifted into the main house.
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Buy Dewlora 4 In 1 CO Detector

Plug it in near the spaces that matter most, check the display with confidence, and know that a powerful alarm is ready to help alert you to potential carbon monoxide and fuel-gas concerns.

Sale!

Dewlora 4 In 1 CO Detector (Official Retailer) 2026

Original price was: US$99.95.Current price is: US$55.75.