Very good. Does its job perfectly. At a good price, I recommend it.

I have it in 30 liters for 5 months, it works flawlessly.. The only thing I have noticed is that when you set the temperature you want, you are about 2 degrees lower in the water.

Very good tool for the aquarium, does a good job and keeps the aquarium as it should, value for money!!

Excellent thermostat. It has excellent accuracy in its temperature. I have had it for 2 months and I am now at ease about the correct, precise temperature of the aquarium. I highly recommend it.

very honest for its price, it has a small deviation of ~1.5 degrees lower than the temperature you set.

I bought 2 and one came broken. I understood that it was from the factory so it was not the seller's fault, nor the shipping company's. It was also evident from the photos I sent that it was made that way because it was inside the plastic protector on the edge and not on the bare glass. Bravo to Skroutz for the immediate replacement, and bravo to the seller who sent another one right away. They work great! I use them in a bain-marie that needs to maintain a temperature of 36 degrees for fermentation in a container that I put inside. It says it's up to 35, but it works fine even at higher temperatures. 36 without being at the maximum. They keep the temperature stable with accuracy. However, be careful because they break easily. I have broken another one in the past that was much more expensive.

After a year of use, in a small aquarium of course, it works great. It keeps the water at the desired temperature, as shown by the thermometer I have.