2 Pack Carbon Monoxide Detectors & Natural Gas Alarm – 4-in-1 Portable Plug-in Detector with Battery Backup, LCD Display, Temperature & Humidity, CO & Gas Leak Sensor for Home, Apartment, RV & Travel

Be safe!
After a gas leak in our home, we needed a safety device. These are gas and carbon monoxide detectors. Put one upstairs and one downstairs for safety.

Excellent way to ensure no gas leaks installs in an outlet
Great price easy to use

Easy setup, just plug in and go
As someone who could have potentially died as a kid in the 90s due to an old cast iron floor furnace in our old house leaking CO (but thankfully mom listened to her gut feeling, opened a window that night despite the cold outside which saved us, and got a detector the next morning, which read CO off the charts within a few minutes) I feel it’s important to have detection devices like these in your home. We currently use a natural gas fireplace during the winter and have a gas stove, etc. The fireplace is ventless, and those along with ventless heaters do use oxygen when burning.We have smoke detectors and one that also detects CO, but I’m glad to have this device, too. I have it plugged in the wall in the hallway just a few feet from our living room where the fireplace is.Right out of the box it’s ready to plug into the wall. It automatically turns on and does a countdown while calibrating and setting up its gas detection sensors. It’s portable as well and comes with an attached handle loop which you can easily remove. It has a built in lithium-ion battery, which you will see the battery meter on the device start charging after you plug it in. It takes several hours for it to be fully charged and then the battery meter icon will stop flashing.The device also reads temperature and humidity which I don’t really think is necessary. They don’t seem to match up with my other digital temp and humidity devices I have in the living room. You will notice that the temperature on the device after you first plug it in will read much higher (84F in my case when the actual room temp was 74F) because the battery charging creates heat, so the temperature reading will be off while the battery charges. But since what I care most about this device is gas and CO detection, I don’t care about the temp and humidity readings.The device overall seems well made and the screen is clear, letters/numbers bright and easy to read. The instructions are easy and clear to follow. However, the print is extremely tiny. I’m able to read it with my bare eyes, but other folks may need a magnifying glass or reading glasses in order to read the instructions.The beep is plenty loud but could be louder for individuals/elders with harder hearing. For me, I have sensitive hearing so I should be able to hear it easily from anywhere in my house.The lifespan of this device according to the manual is 5 years, which honestly to me doesn’t seem like very long when other devices are 10+ years. It just seems like a waste and then hope that you can find a way to dispose of it properly so that it can be recycled.Overall this device makes me feel safer in my home. It will be put to good use this winter when the house is closed up and the fireplace is run a lot. This device also detects other gases besides natural gas, such as butane, propane, methane, etc. At around $19 for this device, it’s quite sophisticated considering what it does, but is very budget friendly for peace of mind.

Sorry, I CANNOT TRUST these to protect my life. They can’t even measure Temp and Humidity accurately
When 3 items don’t work properly, how can you trust your life to the remaining 2? Devices arrived in good shape and upon plugging them in, the Humidity and Temperature displays were WAY OFF and never stabilized at correct values. Also, the expected battery life of 24 hours after a full charge only lasted about 7-9 hours before it was dead. If a device can’t do really simple things like measure Temp and Humidity and Fully Charge a Battery correctly, why would one trust their life to the actual purpose of the device which is to measure CO and other Gasses in the air??? Both units charging indicators would never stop scrolling after the initial 48 hour charge before testing. After the battery died after about 7-9 hours of being unplugged, I plugged them back in and 3 days later the battery indicator still showed charging unlike the first time when it actually stopped scrolling and showed a full battery. Sorry, I cannot recommend these units if you wish to use them for protecting your life.