Update: I've left my original review below, but shortly after leaving it the company contacted me and offered some troubleshooting techniques to try. That unfortunately did not work so they sent me a replacement. My gas meter has been fixed so I couldn't retry it there, but I did put it next to the stove when I turned it on (with plenty of ventilation) and it immediately started flashing and beeping at me and showed the ppm. There was maybe a 1 second delay from the time I turned on the stove to when it started flipping out (and continued beeping and showing gas until I took it into another room). The first unit I received must have been faulty. While it's unfortunate the first unit didn't work, I appreciate that the company proactively reached out and quickly resolved the issue. I greatly value customer service so between that and the new unit working very well, I've updated my rating from 1 star to 5.I always seem to have a slight gas smell around my gas meter and while I've had the gas company out many time to "fix" it, they never seem to actually fix it. I saw this on Vine and thought I'd start trying to detect it myself. The meter itself seems to be solidly built, but after testing it a couple different ways I'm not sure how sensitive it actually is. First I tried it by the gas meter and it stayed at 0 ppm. Given the gas company seems equally unable to figure that out I thought I'd try something a little more obvious. I started by turning on a gas burner without lighting it and held the end of this meter right by the holes the gas was coming out. Still said 0 ppm (though I only tested it for about 5 seconds since I didn't want to fill the house with gas). I then wondered if it worked at all so I stuck the end of the sniffer into my propane grill, closed the lid, and cranked up all 3 burners without lighting them. After about 20 seconds I could clearly smell the propane outside the grill and the sensor still said 0 ppm. I turned the gas off and then the meter finally started beeping at me jumping around between 200 ppm and 370 ppm before going back to 0 ppm right before I opened the lid to air it out. I can't imagine the inside cleared of gas that quickly before the lid was even open so I question how well this thing actually works. I mean I suppose it did eventually detect the propane, but it was already long after I could easily smell it so it's not particularly useful to me.

It took me some instruction manual reading and re-reading, some online searches (not much to find there on this specific meter as of yet) and also some hands on trial and error before figuring this thing out, and then once I got it in monitoring mode, I WAS able to pinpoint a gas leak in our home, down to the actual fitting and connection that was giving us fits. I know that usually a solution of heavy dish soap and water can usually find any gas leaks, but ours was in a spot that this did help find. I also wanted to have something like this handy to periodically monitor under our stoves - we have a rental, as well as a mother in law unit and our main kitchen, all with gas appliances, and with something like this, I could check connections every once and a while.I will say tho that the directions have a little to be desired, and the main issues for me was 1) knowing for sure I had the settings right to detect leaks, and then 2) being able to change it from automatically turning off every 30 seconds. Directions helped, but were still confusing to me, and then after moving the dryer back to it's working spot, I wanted to recheck it, and could not get it to work correctly the second time. Thus the 2 stars.Sorry, but some things you buy so that when you want to use it, you can trust it 100%, and I don't feel comfortable using it anymore. However I DO think this type of item for preventative maintenance and home safety is important. I'll be back on the market to find another one. Bummed too, but I only want one in the toolbox that I can fully trust every one I pull it out, and this one does not provide that.

We have a home filled with gas powered equipment. We had a carbon monoxide leak from a new, that day, installation that replaced our old water heater years ago and our in home alarm did go off. My DH insisted it was a fluke and we were fine. I made everyone go outside and I called the local Fire Department, they came out with a gas meter to read the levels. It was not a fluke, it was faulty installation that would have stopped all of us from waking up the next morning if the FD had not come out and turned off our gas and set up huge fans to move the gas out of our home.I wanted a meter like the FD had so we'd never question our C02 detector ever again,but the only ones available then were incredibly expensive. I was excited to find a quality meter at an affordable price for home use here on Amazon. It arrived today. I put the batteries in and decided to test it with our gas stove. I got a positive reading as soon as I put the meter head next to the front burner that appeared to be off. I turned the knob and found that it wasn't turned off all the way. I turned on the vent, made sure all the knobs were fully off and went back and tested it again and nothing registered. I went to the basement and checked out all of the other gas powered equipment and all was fine. You can't predict when a leak can or will happen. C02 detectors work when gas levels are measurable and you remember to change them before five years are up. You can't smell C02 like you can natural gas so it's a good feeling knowing that we can check our appliances after the range or dryer are moved to clean under them and routinely as our appliances and furnace age. The peace of mind is worth the cost. The Meter is easy to use, it has it's own case and it uses three triple A batteries. It's a great value to me.

This is quite a nice gas detector, with settings both for detecting methane and natural gas, both at very low levels. The detector has a long neck for projecting into small spaces and also comes with a case. Mine came with a very slight scratch on the display, which is not really an issue (but the manufacturer might want to consider adding a screen protector during the manufacturing and packaging process).I ordered this unit because we have a gas stove and also smell gas at a location near but outside of our house. The gas company has previously confirmed a small underground gas leak at this location, but it comes and goes, and is apparently too minor to warrant fixing at this point. I was unable to get any reading with this detector over a period of several weeks, but also have not been sure that I actually smelled any gas during that time period.I also could not get a reading from our gas stove, even when the burners took a short time to ignite. But I haven't really gotten much of a gas smell then, either. I will continue to try to detect gas at the stove if I ever detect the smell, and also hope to compare readings on this device with those of the gas company the next time I have them out to research the leak outdoors.Until then I have to trust that this device actually works and that I am using it properly. (It did come with instructions, that imply--but do not explicitly state--that one simply turns the device on, sets it for the kind of gas expected, waits thirty seconds for the device to warm up, and then holds the device where a leak is believed to be. If one is supposed to do more than that, such as holding a button down while making the reading, that is not evident.)

My wife was sure that she could smell a natural gas leak near the front of the exterior of our home. I couldn't really verify that, though, and the meter didn't seem to indicate that we had a leak. A year later, the gas company told us that we had a leak BEFORE the meter, and that they'd resolve it by replacing the meter. After that, I figured it would be a good idea to get a REVASRI Gas Leak Detector.There's not much to this meter, and it completely looks like it could have been designed 20+ years ago. That doesn't really matter, though, since the interface I/O elements are usable, despite being simple. I tested it with unignited Blackstone (a simulated propane leak), and it worked fine. I can't practically test it with other combustible gasses, but I have no reason to believe the sensor wouldn't work the same way.At $40, the REVASRI sensor is a cheap insurance policy. It's easy to operate, and it works properly. The sensor gets extra-credit points for using AAA batteries. It's not unusual for devices like this to use 9V batteries, which may as well be unobtanium for me in 2023 - so it's awesome that this uses cheap and readily accessible batteries. Recommended