i've got the MIP one but I think I'm going with a temp gun now. Mine is just too much trouble cos I run my truck in the wet sometimes and I can't seem to waterproof it properly. It keeps getting wet and shoritng out on me. Then I'm stuck for the rest of the day not knowing my temps. Also, I just don't like having one more thing I have to mount on the truck. I'd rather have the option of just carrying the gun around with me and checking the temp when I want. Also, I tested mine by putting the probe in boiling water and the water started to boil when the gauge read 202 degrees. Needless to say, the gauge reads low by about 10 degrees. Even when the water was boiling hard, it only read 205...