Most helpful critical review
163 of 196 people found the following review helpful
Temperatures shown were incorrect
on January 14, 2010
I was looking for an easier way to check for door and window drafts than a lit candle, so, when I saw this product, I immediately ordered it. Amazon was lightning fast with Prime shipping, and it was received less than 24 hours later.
I understand margin of error. However, the unit doesn't seem to be very good at accurately sensing even ballpark temperature. For example, as a test, I pointed the unit at my dog, and it showed 120 degrees. At the back of my daughter's head, it was 117 degrees.
If you'd simply put a piece of tape over the orange LCD screen and instead only watched the flashlight color cycle between Green and Red (hotter than the origin) and Blue (colder), that'd be fine. Even if the temperatures are wrong, the deltas are probably still correct.
But, if you're looking for something to also correctly sense temperature via IR, look elsewhere. As a leak detector, it may work, and thus fit its name, but having the temperature numbers available and having them be so wrong is misleading and ultimately unhelpful.
2 stars because you could ignore the LCD completely and look only at the colors and have a semi-useful unit. I returned it.