From the brand
24/7 CO Safety Guard!
5-in-1 Sentinel: 24/7 Guard for Air, Heat & Hazards
Total Home Shield
Detect All: CO/Smoke/Gas + Temp/Humidity. Safe
Plug and Play & Backup Battery
No setup or expertise required—just plug it in and it’s ready to use.
Sleep Secure. 24/7 Defense!
Sound & Light Alarm
Home Safety for House, RV, Apartment
Smoke Alert
Never Miss a Threat: 24/7 Smoke Sentinel with 85dB Scream Alarm!
Safety Never Sleeps!
Upgraded 5 in 1 Smart Detector: Keep your family safe with this digital display, plug in carbon monoxide alarm; combination smoke and carbon monoxide detector can monitor CO detector, combustible gas detector, smoke detector, temp and humidity in real time, and display dynamic data on 2.7″ HD screen
Quick Response & Precise: Smoke CO detector and natural gas detector uses high-sensitivity electrochemical and photoelectric sensors. The data is refreshes every 2 seconds, providing fast and accurate detection. Lab-tested and meets safety standards
Plug and Play & Backup Battery: Combination Gas & Carbon Monoxide Detector is plug and play without installation, suitable for any 100-240V standard outlet. The built-in 1000mAh backup battery can run for 24 hours during power outages, ensuring constant protection. Easy To Install (No Wiring Required)
Audible and Visual Alarm: When threats like CO levels ≥ 200 PPM, or combustible gas leaks are detected, the carbon monoxide alarm will emit a 100dB sound and flash light alarm, ensuring you can sense danger and react quickly even while sleeping
Applicable Scenarios: Portable carbon monoxide detector is compact and lightweight, and can be easily carried in a backpack. Widely used for bedroom, kitchen, living room, bathroom, garage, office, restaurant, hotel, RV, travel outdoors and many other places
Beach family –
Peace of mind in one simple device
I don’t usually write reviews, but this Smikd 5-in-1 Alarm definitely earned it. I was looking for a reliable plug-in unit that would cover both carbon monoxide and smoke detection- this one goes above and beyond with added features and smart alerts. Setup was a breeze. I literally plugged it in, hit the test button, and it was ready to go. No complicated syncing or fumbling with batteries.The sleek, low-profile design blends into the room without being an eyesore. I’ve got mine in the hallway between the bedrooms, and I feel a lot better knowing it’s watching out for both smoke and carbon monoxide—especially since we have a gas furnace.It’s not just functional—it’s thoughtful. The alarm is loud enough to wake a deep sleeper (yes, I tested it). That could make all the difference in an emergency when seconds count and panic sets in. I also appreciate the easy-to-read digital display showing real-time CO levels.In short, this little device packs a lot of safety into a compact, affordable package. Great for apartments, homes, or even for elderly parents who need a dependable system without fuss.Highly recommend. If you’re on the fence, just get it. You’ll sleep better at night knowing it’s there.
Candy Ann –
Protect your family!
Was in desperate need to replace my old smoke/co detector. Found this one and thought I’d give it a go. My husband does hvac and we tested it to see how it compared to his fancy equipment. Pleasantly surprised with its accuracy. Super easy to install. Easy to read. And loud enough to wake sleeping teenagers. Will be purchasing more.
Customer –
Small but very useful
This is a small but useful device. No need to setup anything, just plug in, that’s all. I used a lighter to test the gas function, and it starts beeping in seconds, simple but very functional. I leave this dector in my utility as another safety back up.
Hebe Cristina Lopez –
Bueno
Me encanto el producto y funciona todas las opciones. Solo que la batería apenas solo unos minutos al estar desconectado se acaba. Una lástima por que sería Perfecto. Conviene comprar uno de enchufe y pilas.
Stephen Bernier –
it is inconvenient
Love that I dont have to worry about changing batteries with this product, and I like the thermometer feature. I would probably only recommend this as a back up detector due to the fact that the alarm goes off at 150ppm, which may provide adequate warning for some situations, but might not offer sufficient protection for everyone, especially vulnerable individuals.
Matt –
easy, and convenient to use
great detector, very convenient, I used to buy some carbon monoxide detectors in my kitchen, however, all of them are powered by batteries, actually I have no idea if they are out of power, so I always don’t know if it really works after long time if I have no time to check about the status. This one is great, and what’s more, it is also rechargeable, I can bring it with me when I do camping and sleeping in the car.
Mordechai Rosenfeld –
Peace of Mind in One Compact Device!
This 4-in-1 gas and carbon monoxide detector is exactly what I needed for added safety at home and while traveling in our RV. It was super easy to set up—just plug it in and you’re good to go, with the added security of a battery backup. I love that it not only detects CO and gas leaks but also shows temperature and humidity in real-time. The digital display is clear and easy to read, and the alerts are loud enough to get your attention fast. It gives me peace of mind knowing my family is protected from hidden dangers. A smart and affordable investment!
Rhyalus –
Safety while traveling
I really like this device. It is small and has a lot of features – but to be honest, you probably don’t really need it at a Marriott. But if you are traveling to another country, or staying at a sketchy hotel, this would be great to have along.Pros:Great display shows everything you need, and can be turned off or dimmedVery small and portableBuilt in battery in case of power failureTest buttonMultiple features / detectionsCons:Has a weird way to disconnect power prongs – rather than remove the piece, they should just fold downBattery does not last for more than a few hours – not meant to be used away from powerVery pleased with this purchase!R