NICGOL 4 in 1 Upgraded Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detectors Plug in (Temperature & Humidity) for Home, RV (Black)
Original price was: $49.97.$36.89Current price is: $36.89.
Price: $49.97 - $36.89
(as of Feb 15, 2026 02:00:00 UTC – Details)
Product description
What types of gases can our 4-in-1 Natural Gas & Carbon Monoxide Detector detect?
It supports carbon monoxide, methane, LPG, LNG, Fuel, natural gas, fuel, ethane, butane, alcohol, coal gas, gasoline, toluene, kerosene, sewer gas, and other flammable gases.
Why do I need to remove the protective film before using the detector?
Tearing off the protective film can ensure that the numerical display is clearer. There will inevitably be impacts during transportation, which will cause scratches on the protective film (not second-hand goods).
Why Choose 4-in-1 Natural Gas & Carbon Monoxide Detector?
The 4-in-1 detector simultaneously detects natural gas and carbon monoxide, while also displaying temperature and humidity. This comprehensive functionality ensures the health and safety of you and your family, surpassing single-function detectors.
Why does the detector need to warm up for 180 seconds?
Warming up ensures detector’s working properly and accurately.
What should you do when the detector alarms?
Confirm the gas leak source, avoid electrical devices and flames, and ventilate the area. If it’s a natural gas leak, shut off the gas. For a high carbon monoxide alarm, evacuate immediately and call emergency services.
NICGOL 4-in-1 Advanced Detection: This upgraded 4-in-1 gas & carbon monoxide detector combines sensors for natural gas, carbon monoxide, temperature, and humidity in a single compact device. Features dual sensors and dual alarms for fast, accurate alerts. Detects CO, coal gas, and more.
Quick Alert & Dual Alarm System: RV carbon monoxide detectors designed with both sound and flashing light alerts, this detector activates when gas levels reach dangerous thresholds (CO ≥ 150PPM or natural gas ≥ 5%LEL). It emits a loud ≥ 85 dB alarm and flashing red light, alerting you and your family instantly in the event of a leak.
Energy-Efficient & Eco-Friendly: Carbon monoxide detectors plug in design supports 110V–220V AC with ultra-low power consumption (≤ 2W). Built-in electronic sensors offer long-term use without the need for frequent replacements—saving energy and reducing waste for a more sustainable home safety solution.
Clear LCD Display & Versatile Use: Equipped with LCD screen, this detector clearly displays real-time values of CO (0–2000 PPM) and natural gas (0–10% LEL). Its compact form factor makes it ideal for use in homes, RVs, hotels, kitchens, and cruise cabins without taking up extra space.
Important Setup Instructions: Before first use, remove the protective film from the screen. After plugging in, wait 180 seconds for calibration. Press the test button to check the alarm. For accurate temperature and humidity, allow 30 minutes.
8 reviews for NICGOL 4 in 1 Upgraded Natural Gas Leak Detector and Carbon Monoxide Detectors, Dual Sensor Gas Leak Detector & Carbon Monoxide Detectors Plug in (Temperature & Humidity) for Home, RV (Black)
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Delma –
Safety first
I purchased this Gas and Carbon Monoxide Detector because where I live we experience frequent power outages, and generator use is very common. Safety was my main concern, and this device has given me real peace of mind.The dual sensor works great, detecting both gas leaks and carbon monoxide accurately. I also really like that it plugs in directly, so there’s no need to worry about batteries. The temperature and humidity display is a nice added bonus and helps monitor indoor conditions, especially during long outages.It’s very easy to install and the alarm is loud enough to be heard throughout the house, which is crucial when generators are running nearby. This detector feels reliable, well-made, and highly practical for homes, RVs, or any area where fuel-powered equipment is used.Overall, this is an excellent safety device and a must have if you live in an area with frequent generator use .
Yanelis SantaCruz –
Natural Gas leak
Excellent gas and carbon monoxide detector! It was very easy to install—just plug it in and it starts working right away. The display is clear and shows temperature, humidity, and gas levels, which is very helpful. I like that it has both gas and CO detection in one device, giving extra peace of mind for my home. The alarm is loud and easy to hear. Great quality for the price. Highly recommend!
Bambi –
Clear, Easy , peace in mind
It’s seems working pretty good. I tested it in the kitchen and works good so I reinstalled it in the hall way, right outside of my bedroom. That brings the peace in mind, protect me and family. Size is smaller than a power bank for the cell phone. It shows temperature, CO, Gas % & RH % ( relative humidity). When you put it in the outlet, it start countdown the CO/Gas as the video shown to 0 ( as pic 2 ). The digital display is very clear to read. I like that it plugs directly into the wall, so there’s no battery to replace, and the self-test button makes it easy to check that it’s working.
Anyer –
Great Safety Device for Home
This detector is easy to install and works as described. The screen is clear, and it’s reassuring to have gas and carbon monoxide detection in one device. Good value for the price and very useful for home safety.
J. Newton –
Attractive and easy to use
Bought a pair when we had some questions about the air quality in the house.We live in a single level townhome with 3 gas appliances. The furnace doesn’t have outside air induction. We have a couple of CO detectors, but nothing to tell us about a leak.The units fired right up when plugged in and registered the same (0) level as our old units for CO. Luckily also zero for gas.The alarm tested plenty loud enough.They’re attractive and much smaller than our Kidde detectors.I’m knocking them down a star because of the lack of 3rd party certification like UL, CE, etc.
Yelenis –
Excellent Detector — Reliable and Easy to Use
I purchased this natural gas leak detector and it’s been an amazing investment. Installation was quick and simple, and the device started working right away. The display is clear, easy to read, and shows real-time gas levels, which gives me great peace of mind. It’s compact, modern, and doesn’t take up much space.The best part is how quickly it reacts to even small changes — you can tell it’s a sensitive and accurate device. Since installing it, I feel much safer at home, especially in the kitchen. I also appreciate the visual and audible alerts, which are impossible to miss.Overall, I’m very satisfied. Excellent quality for the price. If you’re looking to increase safety in your home, this detector is a great choice.
Esther –
Works great and easy to set up!
I installed this detector the same day it arrived, and the setup was easy. The screen is clear, and leak detection picks up changes quickly, which helps me feel safe at home. The alarm feels loud enough to hear from another room and battery backup is a good touch for power outages. The quality feels solid and the durability seems good so far. The functionality fits what I needed.
JLA –
Great peace of mind device
Great safety device for peace of mind. This 4-in-1 upgraded natural gas and carbon monoxide detector is easy to plug in and works right away. The dual-sensor technology feels reliable, and the alerts are clear and loud. I like that it monitors multiple gases in one compact unit, making it perfect for kitchens or near gas appliances. Simple, effective, and a smart addition to any home. Perfect when traveling out of the country and renting.