Do not underestimate it because it is cheap and does not have many buttons and indicators! It is real value for money, beautiful, with a clear readable screen and... decent in its measurements, of course considering its price. Its battery (already installed) is very cheap and lasts for years. I have bought 3 of these thermometers/hygrometers for 5.5 euros each and I have placed one in each room of my house to have an idea of the temperature and humidity.

I would also like to dispel some "myths" regarding hygrometers: Firstly, there is no household thermometer/hygrometer, from those costing 15-20 euros, that is perfectly accurate, they all have deviations from the real values. Precision electronic thermometers/hygrometers, like the ones you will find in chemistry laboratories, are very expensive (imagine that the cheapest ones start from 350-400 euros), so do not waste your money unnecessarily searching to buy the "perfect" hygrometer or weather station. Secondly, humidity can vary in different parts of a house, even in different parts of a room, depending on how well ventilated the room is, how many hours it is exposed to sunlight, etc., so it is normal to have different humidity readings in different parts of the house, sometimes even in different parts of a large room, such as a living room. Thirdly, cheap household hygrometers that use organic materials for measuring humidity often show slightly different values, even if you place them side by side.

As I mentioned before, household hygrometers are meant to give you a general idea of the humidity in your home, and this small and inexpensive thermometer/hygrometer does this job just fine. I highly recommend it.