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Safety gear is a purchase you hope never to put to the test. The MOES 4-in-1 Carbon Monoxide and Natural Gas Detector keeps the cost modest at $26.99, down from $32.99.
Among MOES’s gas detectors, this is the model with the most substantial written reviews. We combed through the specifications and each review posted for it, aiming to learn whether it earns its spot.

Four Readings in One Unit
This is model PTH-24E. It measures carbon monoxide and combustible gas, covering both LPG and natural gas. It also shows temperature and humidity.
The carbon monoxide range is 0 to 999 PPM. By default, the alarm triggers at 51 PPM.
Combustible gas readings use a four-level scale, and the alarm goes off at 5% LEL or above.
Temperature and humidity share a 2-inch IPS display with the gas readings. So the screen is always showing something useful, rather than staying quiet until a problem appears.
No App, and That Is the Point
This detector is plug-and-play and is not app-connected. Forget WiFi, forget the Tuya app, and do not expect alerts on your phone.
You plug it into an outlet and it works entirely on its own. Two things warn you as danger levels climb: an 85dB alarm built into the unit, and a display that shifts through four color stages (green, yellow, orange, red).
Shopping for a smart sensor that links with a larger home automation system? Look elsewhere.
Choose this one when you would rather have a dependable, self-contained safety device that you set up once and forget.
What the Reviews Say
The product page lists three written reviews, and each one gives five stars. The sample is tiny, yet it is unanimous.
L.C. keeps two of these detectors, one in the house and another in an RV. They called it very sensitive to the gases it monitors.
A buyer who goes only by C. wrote the most striking review. According to C., the unit detected a genuine leak: a bathroom vent was letting small amounts of natural gas seep into the room.
That is the kind of review that is hard to fake. It also describes exactly the situation this device is built for.
Size, Plugs and Power
The housing is flame-retardant ABS plastic. With the plug included, it measures 105 by 55 by 52mm.
Swappable US, EU and UK plug heads come with it, so the same unit works in different regions. It accepts 100 to 220V input, so it suits most home outlets around the world.
Setup and Placement
To install it, simply insert it into a wall outlet. A spot close to a gas appliance, a water heater or an attached garage is best.
No wiring is needed, nothing has to be paired, and there are no setup menus to click through.
When the concern is carbon monoxide, prioritize outlets in sleeping areas and beside attached garages. Exposure while asleep is the most dangerous scenario.
To catch gas leaks, pick an outlet by the kitchen stove, the water heater or the gas furnace. Readings for natural gas and propane help most when the unit sits near where the gas originates.
Is It Worth $26.99?
That price buys a plug-in unit that combines four functions, including genuine CO and combustible gas sensors. That makes it among the more practical safety products MOES offers.
The real-world gas leak report adds weight to that view. MOES backs the unit with its standard return window of 60 days and a warranty lasting 2 years.