Big clear and bright screen. Have it for 5+ months working every day and it is great. Temperature accuracy +-0.5 Celsius (double checked it with a sensor). Great value for money! Definitely buying again.

Very practical, especially if there is an infant in the house for whom we must monitor the water temperature for their bath.

Very good! It goes between the bathtub battery and the spiral and measures the water temperature. So you know exactly the water temperature and you can also save energy. It measures accurately, verified with a water thermometer. Made of plastic but has good quality. It doesn't need much tightening during installation. The screen rotates.

It slightly reduces the water flow. Of course, it's logical since it doesn't have batteries and the energy is drawn from the water flow.

Purchase on 2/11/2019 and the body, which is hard plastic and not metal, broke on 9/2023. 4 years later, it still works and provides accurate temperature measurements. Now I will buy another one. The best and economical option.

Note: It has a 1-year warranty

It is perfect, showing the temperature with very good clarity without having a battery, but it slightly reduces the water pressure on the phone

Excellent product. Obviously, its quality is not top-notch (it is plastic). However, it is very convenient when you want to know the temperature of the water in the bathroom (perfect for bathing babies). It loses a bit of water pressure, but it is not such a big problem

Finally, it proved to be an excellent tool. I turn on the water and depending on the temperature, we know if the water (in the solar water heater) is enough for one or two people to take a bath. So, if the temperature is satisfactory, I don't turn on the electric water heater.

Because I had bought it again from Banggood and the plastic that connects the hose had broken (due to misuse) after 3-4 years, I will wait to see how long it will last. Otherwise, quite a useful gadget for the bathroom.

It is very good for its price, I bought it for 12.50 euros/piece. Clear rating, easy installation with two wrenches or with a French/German key 24 and a monkey wrench. However, it requires attention as it is made of plastic, it needs to be handled gently, not forcefully. It only has one direction of installation, if it doesn't work for you, obviously you installed it upside down. The input is from the socket.

No problem after a month, everything is good, it does what it is intended for!! Generally satisfied!

Well-packaged, easy installation if you have minimal knowledge of operating a faucet. It's worth its money if you want to know the temperature of hot water. I saved half the time of waiting for the water heater to warm up

It is quite useful and nice little gadget.
Maybe it "cuts" the water pressure a bit, but that happens because that's how it works or it has something to do with the mechanism. It's because it has this rubber inside (which looks like a wheel or a groover) and it saves a lot of water - especially if you have a water heater. Now, if you already have low water pressure, you should have a plumber check it out.

Also, remember to put some Teflon before screwing it onto the top part because there is a possibility that water might leak from there.

It is the second one I buy.
Easy to install and does its job well.
Especially with regular batteries, where you adjust the valves, in combination with a flow switch, you first adjust the temperature and then bring the flow to where you want it.

It is really very convenient, I have it in the bathtub to see the temperature to bathe the baby

Easy to install without tools (maybe a wrench if you have a tight faucet).
Works great and is very bright. It takes about 5 seconds to show the new temperature when you change it. It doesn't need batteries, it gets power from the water pressure and turns off when you close the flow.
The temperature indication changes by half a degree Celsius, but it's enough for the bathroom, we don't do chemistry experiments. It solved my problem of always choosing the recommended water temperature for my dog's bath.

Very convenient, works great

I had purchased 2 from Banggood. And both of them broke after 5-6 months. They showed erratic temperatures. Maybe it was the water salts. Do not expect durability over time.

It is what you expect from a cheap Chinese product. It leaks water from the joint, but it is made in a way that it is difficult to cover it with a rubber band. It can be partially fixed. It is not like other products that exist on YouTube, for example. Apart from that, the temperature works very well and accurately.

During the first 6 months, it worked perfectly fine. After the 6th month, it broke.
Edit: It was replaced and the second one lasted less than 3 months. Nice gadget but it breaks easily