Good gadget has many indications. It has various screens (you can choose what you want to see). For its price, it's noteworthy

I use it for temperature and fuel consumption measurement in a Mazda 2 2010, it works perfectly and the screen looks good even in the sun, definitely worth its money, my only complaint is that it only measures instantaneous consumption and not average consumption so you can't see total consumption after a trip

Very good at what it does. Small delay in the display values, just be careful it drains the battery. I measured with a multimeter and when the car is stationary it drains a lot of battery. If the car is driven daily there will be no problem, but if it sits for more than 2 days the battery may be depleted.

I bought it to have a water temperature indication in my Colt CZ3 since it doesn't have one like most new cars. I was looking for something small and discreet that wouldn't stand out in the interior of the car. I've had it for 10 days without any problems so far, and its installation took less than 5 minutes. I highly recommend it!

It works perfectly on a Toyota Aygo, 2007 model (ISO 9141-2). Small and elegant (unlike the Konnwei one which is too big for its screen).

Depending on the car you have, you may need to make the necessary adjustments to the device, which is easy to do. As for the prices, comparing them to the dashboard, they seem accurate. There is, of course, a slight delay of about 0.5-1 seconds, which is insignificant. Nothing special.

I recommend it.

It does what it says. Small and convenient.

Small size, color change, with many indicators very useful with sound of speed, water, temperature, engine revolutions,
I come back 31/1/21 works perfectly 12/9/21, no problem flawless
We close time simply perfect December 2021
22/10/22. it can erase error
18.6.22 flawless operation