Review on Efeng Large Oven Thermometer for Electric and Gas Ovens (2 Packs) - Hanging Hook Oven Thermometer with NSF Quality and Non-Fading Color Dial, Ideal for Long-Time Baking or Cooking by Rafael Lee

I know thermometers are tricky, I did a lot of research and couldn't find one that seemed accurate. This set had large numbers which I thought would be easier to read through glass and got the best reviews. Both of my thermometers that I received are wrong, one more than the other, they don't even match. My oven works, it's brand new and I have a thermometer that can measure the temperature inside. So it's definitely a thermometer.