For its price, very good, on a new bottle it goes beyond the full indication, I still have to see what indication it will have as it empties.

It does not have a supply regulator. As a result, the stove keeps turning off. Therefore, to properly adjust the flame on a stove, it must have a pressure regulator on top.

It's what I was missing for my bottle. The Low Pressure Gas Regulator with Gauge, Fixed Flow Rate 1.5 kg/h won't tell you how much gas you have in your bottle, but with the pressure, you understand how much usage you still have.

Now I can see the pressure on the grill's bottle and know how much is left until the next change, must have!

It does exactly what it promises..... it shows the amount of gas in the bottle so you know when it needs to be replaced.
I have been using it for a year now and I am completely satisfied. I highly recommend it.

It does exactly what you imagine. It shows the amount of gas in the bottle. The 10-kilogram gas bottles are filled up to approximately 3.5 bars.

It does what it promises, I am satisfied!
Comments:
1) The pressure of the bottle changes a lot with the ambient temperature and in a "strange" way, because it is a liquefied gas, so from night to morning or from cold to hot, the indication changes quite a bit. With a full bottle and an ambient temperature of 16 degrees, the pressure is 4 bar, but it can go up to 5 and down to 3 due to temperature. That's why it should not be exposed to the sun! Otherwise, it will rise above 7 bar, which will cause a small leakage from the connection. When the needle reaches the yellow, it warns you.
1) It does not have the ability to adjust the output pressure (as stated in the specifications) for cases where an increase in pressure is needed due to a long length of tubing from the bottle to the kitchen.

I have bought three. They are extremely convenient for seeing when the gas is about to run out, but one for inexplicable reason, after two years of use, started requiring excessive force to tighten in order to prevent leakage.

I do not recommend it, it does not display correctly and easily gets stuck. It does not work properly. It frustrated me a lot. It was priced at 11 euros and they charged me 17

Like in most gas pressure gauges, don't expect accuracy in the readings, but you can know when to prepare for a bottle change, which is the goal.

Simple construction, you don't need anything more, it shows what it should

I have been using it (gas cylinder) for a month and it works as it should, meaning with accurate fuel level indication and, most importantly, without any leakage