I have only used it for the cabin temperature indications and battery voltage indication. I am very satisfied with the job I got it for!!! I have not used the USB port and cannot give an opinion.

Very good product and convenient for vehicles that are somewhat outdated in terms of technology and lack informative additional features for the driver. The USB power output is also good, although I don't know how many Amperes it can provide and what devices it can satisfy.

Anyone who wants power and more than just USB measurements (RGB, mobile or tablet charging, gadgets) at the same time. It works great. It helps to know the battery voltage and cabin temperature. I don't have a fixed temperature setting in my car and I rely on it to take it where I want without guessing every time.
The price depends on each person's needs, it would still be worth it for me even if it cost 10€. I would even buy it for up to 10€.

Very good, I have it for about 2 years and it gives me very accurate measurements, I recommend it without a doubt for its quality and price!

Very good. You can control the battery voltage and how much the dynamo charges. Reliable for its price. You would think it was bought yesterday, on 8/01/2024. Reliable for its price

For the money, it is very good!!! I have it for 1+ year and it works perfectly!!! For those who don't have a voltmeter indicator in their car, it is very good!