Review on 🚗 Multifunctional LED Car Thermometer Voltmeter Clock Alarm Monitor | Indoor/Outdoor Thermometers for Automobiles, Motorcycles, Trucks, Boats, and Marine | 12V/24V Compatible by Michael Hemmig

I bought a defective one so I sent back another one which was also defective. I ended up buying what I thought was a different product, but it was the same, just in a different "sleeve". He too was wrong. The items in question set up fine, then after a while the display freezes and the only way to unfreeze it is to unplug it from the car's power supply, then remove and reinsert the internal batteries and then set everything up again , just to freeze it again. Absolute rubbish.