Best Wi Fi Gas Alarms in 2026

2-in-1 Detection - Smoke & carbon monoxide detector combo alerts you to both smoke & fire events as well as poisonous, CO gas in a single device

24/7 Self-testing components are always checking the device to ensure it's operating as expected (not a substitute for a manual push test)

Easy installation mounting bracket included for quick installation in 4 orientations

Keep your family safe with this battery operated smoke and carbon monoxide alarm; Battery powered alarms provide continuous monitoring of CO levels, even if there's a power failure

Features an electrochemical carbon monoxide sensing technology as well as a photoelectric sensor that detects the larger particles of a smoldering fire

Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85 decibel siren provides a clear, loud warning upon detection

Easy to install CO and explosive gas alarm with three convenient mounting options including AC wall outlet, plugin six foot power cord, or table top

Carbon Monoxide (CO) alarms four quick beeps, followed by five seconds of silence, followed by four quick beeps. Displays CO concentration

Gas alarms one second of alarm on, one second of alarm off, repeating with “GAS” shown in display

Phone Alerts: Nest Protect sends you a message when there's a problem or the batteries run low.

Smoke and CO Locator: Nest Protect speaks up if there's smoke or CO and tells you where it is so you know what to do

Detects CO: Carbon monoxide is an invisible poisonous gas. Nest Protect tells you where it's hiding.

2-in-1 Protection: The combination smoke and CO detector detects both smoke and carbon monoxide faster and more accurately using a photoelectric smoke sensor and an electrochemical CO sensor

10-Year Battery: The fire and CO alarm is built with a sealed lithium battery that provides 10 years of continuous power, saving you from changing batteries and power outage

Combination Alarm with CO Readings: The informative LCD will show you the battery level and real-time CO levels in PPM (parts per million)

Smoke detector carbon monoxide detector combo – sounds loud 85 decibel alarm with voice alerts that announce "Fire! Fire!" or "Warning! Carbon Monoxide!"

Hardwired with backup battery - combo smoke and carbon monoxide detector is hardwired into a 120V power source with 9V battery backup

Easy installation – battery door is on the front for quick replacement

style: flush mount; color: white

loud 85 db alarm

power supply and current draw: 12 vdc 90ma @ 12 vdc

FIRST OF ITS KIND: The first battery-operated, digital radon detector. Monitor your home without the need for an outlet.

LONG TERM MONITORING: Monitor for cancer-causing radon gas. Long term monitoring is necessary as radon levels fluctuate daily.

BE IN CONTROL: Take action if your radon levels are high. Know if your improvements have worked by checking the short term, on-screen readings.

RF Interlinked: These alarms use wireless radio frequency technology to both transmit and receive messages regarding hazards in the home so that when one alarm sounds, they all do, informing everyone of the emergency

2-in-1 Protection: This combination alarm is equipped with dual sensors to detect both smoke and CO dangers in a single unit, providing instant warning through its loud 85 dB sound

10-Year Sensor Life: The durable and long-lasting design ensures 10 years of stable, reliable performance for complete peace of mind, keeping your home and family safe for a decade

2-in-1 DETECTION: Detect both smoke and carbon monoxide with the DAB-TEK Carbon Monoxide Smoke Detector Combo

3 AA BATTERIES INCLUDED: No last-minute trips to the DIY store. This Smoke Alarm And Carbon Monoxide Detector comes with 3 long-life Batteries

PHOTOELECTRIC SENSOR: Opt for a Photoelectric Smoke And Carbon Monoxide Detector and reduce the likelihood of a serious fire spreading in your home

Includes mounting bracket

Power Supply and Current Draw: 12 vDC 75mA @ 12 vDC

Alarm Point: < 25% LEL of Propane and Methane

✅ 𝗣𝗥𝗢𝗧𝗘𝗖𝗧 𝗬𝗢𝗨𝗥 𝗙𝗔𝗠𝗜𝗟𝗬! - Be worry free and know you did everything to keep your family safe from fires or explosions caused by dangerous gas leaks from your stove, furnace, water heater, washing machine, fireplace, kitchen, garage or grill.

✅ 𝗦𝗔𝗩𝗘 𝗬𝗢𝗨𝗥 𝗧𝗜𝗠𝗘- Plug and Play! Don't waste your precious, limited free time with complex installations and never change a battery! Just plug in and get on with your day!

✅ 𝗦𝗧𝗔𝗬 𝗦𝗧𝗬𝗟𝗜𝗦𝗛 - No tacky cord! Don't drill holes in your wall! This sleek and modern white natural gas alarm is wireless and will complement the style of your home or camper without detracting from your interior design.

This combination smoke and carbon monoxide alarm features photoelectric and electrochemical sensors that detect smoke and carbon monoxide, giving you and your family dual protection

When one device senses a dangerous situation, all the interconnected devices go off, so you’ll be alerted throughout your home

For full coverage of your home, you can connect up to 24 AEGISLINK wireless interlinked devices, which gives your home comprehensive protection

[Multiple Gases Detection] The Natural gas detector is suitable for 24 hours gas leak monitoring of LNG, LPG (propane), methane, natural gas, coal gas at your kitchen, camper, stove, furnace, water heater, washing machine for home, department restaurant, hotel etc.

[Easy to Install] Techamor home gas alarm adapts excellent industrial design and leaves 2nd outlet uninterrupted for other devices. Just plug in, and ready for monitoring potential gas leak risky after warm up process.

[LED Digital Display & Warning] The natural gas detector quickly and accurately detects gas leak to give you the earliest possible warning of gas leak with 85 dB alarm and rapid flashing LED indicator

【Why Do You Choose It】You can't feel natural gases through your five senses, When the accumulation of combustible gas reaches a certain level, it will explode when it meets an open flame.

【New Upgrades】Plug and play. Whether you are at home or traveling & RV, it can be hung anywhere with a power supply.

【Multi-Gas Detection】Detects multi combustible gases such as propane, methane, natural gas, coal gas, gasoline, LPG, LNG, etc.When the gas concentration reaches a preset level, the alarm will immediately emit an 85 dB audible and visual alarm.

[Multiple Gases Detection]:Gas monitor of methane, LPG (propane), natural gas, gas fuel etc.

[Precise Digital Display & Warning]: The detector precisely measures and displays concentration of leakage gas by an easy-to-read percentage from 0%~20% of LEL.

[Easy to Install]: Easy-to-install design. Just plug to power socket will be OK.

Target Gases: natural gas(methane, ethane, butane, LNG, etc.), propane(LPG or liquefied petroleum gas)

Power Supply and Current Draw:DC 5V, < 120ma(Bonus an adapter and a USB cable)

Alarm Sound: Beeps ( Trigger when 5%-20%LEL, with LCD)

[Real Time Remind] Connect wifi smoke detector to mobile APP through 2.4g Hz wifi. When smoke is detected or any status changes, you will receive real-time notifications on your smartphone, making your life easier.

[2 in 1 protection] One alarm protects against two deadly threats, including smoke and carbon monoxide. When there is smoke or carbon monoxide in your home, LED lights will flash and sound a loud alarm, accompanied by a voice report to let you know more about the danger, orderly evacuation.

[Intelligent Control] You can turn off annoying alarms caused by kitchen fumes, smoking and other errors via your phone app. No longer need to touch the mute button, you can complete this mute operation, more convenient for the life of the elderly.

Real Time Notifications - If you're having trouble with your wireless connection, SITERWELL Customer Service is here to help. The 2.4 GHz WiFi smoke and CO detector provides smart protection for your home, and you'll receive real-time notifications on your smartphone whenever an alarm is triggered or any status change occurs.

Unique Voice Speaker - This smoke and CO detector alarm features a unique voice speaker that distinguishes between smoke warnings and CO warnings. The voice warning system clearly communicates what's at stake, reducing confusion and helping people maintain order.

Self Check Function - SITERWELL smoke and CO combination detectors have a self-check feature that replaces manual testing. When a detector fails to work, it will notify you as soon as possible to ensure you are effectively protected.

Real-Time Notifications: Receive instant app notifications on your phone when an alarm is triggered or a device status changes

Fast Fire Dispatch Within Just 3 Seconds: As a subscriber to the Protect+ Premium which provides 24/7 professional monitoring service, when an alarm is triggered, you will receive a message from the monitoring center within 3 seconds to verify the emergency. After the emergency is verified, a fire truck will be dispatched immediately

Easy Installation: Install this alarm in only minutes with the provided screws or adhesive tape, then add it to the app to get started

【Hembisen Natural Gas Detector & Alarm 】- This is a new upgraded gas detection alarm with innovative design, sensitive sensor, LCD display of combustible gas concentration, plug and play, protect your family and leave you worry free.

【Easy to Install】 - Plug and play directly into the power supply, very easy to use, allowing you to save a lot of time for other more interesting things.

【Avoid False Alarms】 - Hembisen gas detection alarms use catalytic combustion sensors with sensitive sensing and high accuracy, avoiding the possibility of false alarms.

CONNECT plug in wall propane gas alarm to Tuya mobile APP through 2.4 GHz WiFi.

The lp Gas Detector - propane detector for monitoring LPG, Methane, Natural gas, and Coal gas.

JUST PLUG the gas detectors for home natural gas and get on with your day.

Visual & Audio Gas Alarm: When the natural gas or combustible gas concentration leaks reach a 7±3%LEL, this gas detection alarm will sound an 85dB alarm and display the dangerous gas concentration level, Gas detected alarm voice: “Attention please, gas leaking.” Gas detected alarm voice: “Attention please, gas leaking.” Carbon monoxide detected alarm voice: “Attention please, carbon monoxide gas leaking, please open the window and the door.”

Powerful Quality & Functionality: Natural gas detector adopting high-quality semiconductor calefaction type sensor. More accurate response times to gas exposure, avoiding the possibility of false alarms. LCD display of combustible gas concentration, plug and play, the LED display concentration changes, and an alarm of 85 dB or more issues. Protect your family and leave you worry-free.

Detect Various Flammable Gases: Gas detectors for home natural gas and carbon monoxide, Suitable for detecting methane, natural gas, propane, butane, ethane, coal gas, gas oil, gasoline, toluene, sewer gas, alcohol, ketones, and other flammable gases. It is widely used in homes, kitchens, garages, travel trailers, campers, food trucks, restaurants, hotels, and so on. This gas leak detector can decrease the risk of harm resulting from gas leaks, protecting you and your family.

Double-Duty Alarm with Trim Ring Included

Designed for the Rugged RV Environment

New Low Profile

【Multipurpose】: Keep your family and property safe with our versatile home gas detector. It can detect a range of gases including LPG, propane, natural gas, coal gas, gas fuel, carbon monoxide, CO2, liquefied petroleum gas, natural gas, and can also function as a smoke and more.

【Voice and App Alarm】: Our gas alarm can be synced with a mobile app to quickly alert you in case of a gas leak. The alarm will sound and send a notification to your phone, allowing you to stay informed about your home's safety in real-time. This feature requires your home router to support WIFI at a frequency of 2.4Ghz.

【High Precision】: With the introduction of a new generation of detectors, the detection results have become more precise, and the response time has significantly improved.

Industry First: 2-in-1 Detection - Carbon monoxide detector & Indoor Air Quality Monitor combo alerts you to both CO & indoor air quality hazards, in a single device

Voice Alarm announces the hazard type when detected: “Fire!” = smoke or fire, “Warning Carbon Monoxide” = CO gas, or "Replace Alarm" when the unit has come to its end of life span

Easy Installation: download the Kidde app, scan the QR code on the back of the CO alarm, & plug into a standard outlet

AFFORDABLE PARTS

✦【High Precision】：The has an LCD screen that displays precise, real-time gas readings so that you know the exact gas concentration in the air of your home at all times.

✦【Detectable Gas】：The natural gas leak detector detects the main deadly gases: Natural gas (Methane, butane, ethane, LNG, etc) and Propane (LPG or liquefied petroleum gas).

✦【Stylish Appearance】：This newly released natural gas alarm is sleek and modern and has a beautiful blue LCD screen that will complement the style of your home or camper without detracting from your interior design.

⚫[App remote monitor]This gas leak detector support checking gas sensor status and gas leaks or not via APP everywhere. No matter how far away from home,it can push you the alarm message to your phone no need hub.

⚫[Clear data display]The WiFi Gas Leak Sensor has an LCD screen that displays precise, real-time gas readings so that you know the exact gas concentration in the air of your home at all times.

⚫[Simple design]This natural gas alarm is sleek and modern and has a beautiful LCD screen that will complement the style of your home or camper without detracting from your interior design.

[Home]When you turn on the equipment for the first time, you have to choose one of the two modes: acoustic detection and gas detection.

[Work step] I recommend to proceed with gas-type detection first rather than acoustic detection. Regards to the gas leak detection, due to the spreading character of the gas, it is better to approach the gas detection with the concept of narrowing the leakage section rather than detecting the pinpoint. You can find the exact point by acoustic detection in the narrow section found by gas detection for the last step.

[Korea's Most Famous Leak Detector Company]Daeseong Engineering is the most famous leak detector company in Korea and has 30 years history. 30 years of know-how, the leak detector continues to work to produce the best leak sound.