








Stay safe, stay smart! 🏡
The HSTMYFS Natural Gas Detector is a reliable, plug-in device designed to detect multiple combustible gases, including LPG and methane. With an 85 dB alarm and easy installation, it ensures your home is protected from gas leaks. Backed by over a decade of proven safety, this detector is a must-have for any modern household.




| Manufacturer | HSTMYFS |
| Part Number | BRJ-502E |
| Product Dimensions | 3.4 x 6.9 x 12.2 cm; 136.08 g |
| Item model number | BRJ-502E |
| Colour | Light White |
| Style | Plug-in |
| Power Source | AC |
| Voltage | 110 Volts (AC) |
| Item Package Quantity | 1 |
| Included Components | Gas Detector, Manual |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 136 g |
K**E
Great if you have children in the home
Got this for a bit of extra peace of mind after having the boiler serviced — it’s simple, affordable, and does what it says on the tin. Just plug it in and it starts up with a quick self-test. The screen’s clear and shows the gas levels in real time, which is a reassuring little feature. It’s not the fanciest-looking bit of kit, but it’s small enough that it doesn’t get in the way. The alarm is loud enough to grab attention if anything’s wrong, though thankfully we haven’t had to put it to the test yet. Only thing to note is it needs to be plugged in quite low down (as gas tends to settle), so make sure you’ve got a spare socket near floor level. Also worth knowing it doesn't have battery backup, so if your power goes, it won’t work — something to keep in mind if you want full coverage. Overall though, for a simple plug-and-go detector, it does the job well and offers some added reassurance without fuss.
P**T
Simple and effective gas detector and alarm
A very simple and easy to install gas detector. Every home with a gas cooker should have one, as it will detect any gas if you leave an unlit gas appliance on. To install simply plug it in, and leave it on. Test it by wafting some gas towards the sensor and it will alarm, quite loudly. Ideal for anyone with safety concerns about gas in their home.
M**N
Dead after 1 year
Worked well for a year then died, nothing on the screen, power at socket fine but device dead all of a sudden. Anyone else had a similar issue?
T**K
No sense of smell
I purchased this as I don't aways have a sense of smell so wouldn't know if there was a gas leak. I tested it by opening the gas on the hob and not lighting it. The display flashed quickly, the numbers rose, then an audible alarm. It's comforting just to walk in the kitchen and see it sitting at '0'
N**N
It works!! Confirmed a gas leak
Confirmed a gas leak!!!!! I was smelling gas intermittently and bought this machine, it arrived and started alarming. I called the national gas helpline and and engineer came out and confirmed the leak. Obviously if you smell gas just call them right away, but he checked it against his machine and it was measuring the same levels. Would 100% recommend and sending links to friends and family to get
D**E
Excellent
Excellent. Detects piped gas/ alcohol/ other volatile gases like from Mr Muscle! Alarm goes higher frequency and volume with rising concentrations. Very sensitive. Plugged in so no worries about batteries. Been using for a year and not failed once.
D**N
Good item to have
Good safety item to have
D**2
Useless!!
Easy to set up, seems to be working fine and so far no alerts. I have to trust that it will do its job and hoping it detects previous leaks should they arise again. Edited Nov After having this device plugged in for a while I can confirm it did not work. A gas leak was found in close proximity to the device and it never triggered an alarm so it was in fact a waste of money!!!
J**R
This is an LEL meter (lower explosive limit) I used LEL meters in industry for years to look for dangerous situations. For $20 this is a really inexpensive item to assure safety in your home. An LEL would also detect a gasoline leak in your garage, or if your propane tank began to leak. I have mixed feelings about it being 120VAC, as it would not work in a power outage; BUT, it has no batteries to discharge and render the unit useless. I also have smoke detectors, a CO (carbon monoxide) meter, as well as these two new LEL meters. Better safe than sorry!!!
J**N
Really happy with this gas detector! Just plug it in, let it warm up for a few minutes, and it’s ready to go. It’s loud, reliable, and gives me peace of mind knowing it’ll alert me to any gas leaks. Tested it out and it worked perfectly. Definitely worth it for home safety!
C**O
This is a good product. It appears to do what it claims. I have three of these in my home. I opted to use the plug in monitors because the battery operated types do not have the visual "number" indication. Seeing the "zero" displayed is very satisfying when the units is mounted within a few feet of a gas appliance. BE AWARE. The unit will "alarm" for almost any type of gas emission. Ours have been set off by a sink food disposal cleaner and a spray can of disinfectant sprayed inside of a kitchen garbage can. In both cases, a second unit sensed the gas even though it was several rooms away. If any type of false alarm scares you - you might want to consider another option. I kind of like the idea of knowing it works - like a smoke alarm going off when you burn a steak. Good product.
J**N
This gas leak detector finds it all. I would buy many, MANY more if money would allow. This device finds Hairspray, Natural Gas, Lysol Spray in the next room, my “Propane” grill (Pts if you said it like Hank Hill) outside and of course the toxic fumes that come out of someone’s derriere… no joke! This gas detector is a lifesaver... my kids have turned on the gas stove multiple times now and it has saved us many of times... It detects everything!! Including, but not limited to, I just had a milkshake and I’m lactose intolerant, what did you just eat, flatulence. After a particularly impressive display of culinary prowess, aka a very Cheesy dinner, and a tasty milkshake from my favorite local frozen dairy establishment, the detector went off like a 4 alarm fire whistle! Turns out, it wasn't a gas leak, but rather a rather stinky situation…. I could not fathom how this smell just set it off. But with every situation, it didn’t happen unless you can reproduce the results again. In my case, 3 times... Running across the house squeezing tightly so nothing was to escape, I felt as I channeled my inner Mr. Wizard and was able to recreate my findings in an experiment that would have brought tears to Bill Nyes eyes. As I’m wafting the fumes (Homage to my 7th Grade Science teacher Mr. Caldwell) up towards the device... OMG It went off again!!! And SO, for science, the next day, I repeated the experiment with different variables and conditions. This time, as Betty Croker would put it, just over a handful thrown into the direction of this device. Instant 6 on the rector scale proving this device is the “Bomb” in which was just thrown its way… What I was beginning to think was a faulty product, always going off while my dog was in the room, or going off after Chili dinners, It turns out to be a great and lifesaving device!! It not only will save us from natural gas leaks, but also the possibility of walking into a mushroom cloud of darkness in the room after the dog, or myself had just left…. 5 stars on both effectiveness and hilarity of this Gas Detector, and the awesome story I will be sharing for years to come….
M**W
I can't recommend this product based on my experience. Plugged it into the kitchen, near our stove and oven. Everything appeared to be working fine for the first couple months. Then, one day, it began beeping nearly every time we baked something. We became worried we had a leak, so we checked every connection for bubbles with soapy water but could not identify the source of any leak. The alarm would usually stop beeping within a minute or two and then go back down to either 0, 1 or 2 and stay there for hours. Then the next time we turned on the oven, the reading would again jump to level 3 or 4 and the beeping would start over for a few minutes. We continued searching for a leak and couldn't find one. Eventually, the alarm started going off at random times, even when we were sure there could not be any gas in the room. At one point I breathed on it, and the gas reading level jumped to a 6 and the alarm went nuts for several seconds. As a final test, we moved a different gas detector into the kitchen where this one was and moved this one into our utility room, where the other detector had previously been plugged in. The new detector in the kitchen consistently showed 0 and detected no gas. However, this detector now consistently showed levels of gas in the utility room between 2 and 3, with the alarm sounding periodically throughout the day and night. This was odd because the other detector had never beeped once over the several months it had been in the utility room. I checked every gas connection in that room for leaks and eventually had an HVAC company come and do the same. Like me, they couldn't find any. We concluded that this detector is malfunctioning and giving false alarms. Of course, I'm about 2 months past the return window on the product, so it looks like I've simply wasted my money.
Trustpilot
4 days ago
2 weeks ago