This thermometer uses a distance to spot ratio of 1:1. Which means if you want to test a 1 inch diameter area, you need to have the sensor one inch away from the surface. If you want to take a reading on a 10 inch diameter area, you have to have the thermometer 10 inches away from the surface for an accurate measurement.
Here I am testing the temperature of the cap for just an example. After me holding the cap to take it off, its temperature had gone up to 72.2f. Now, what about people that measure their temperatures using the celsius scale? Is there support for them? For sure, let me show you how you change the temperature setting.
Just grab a paperclip and while the device is in use just gently insert and press to change your temperature unit to what you desire. And for all the geeks out there, no, it doesn't measure in kelvin. ;)
And once changed you can see that everything is measuring in good ole' celsius goodness. Also as a late addition, you will see the display also has a battery life indicator.
Now the burning question in the back of your mind is if this product is actually accurate. Through several tests with my existing thermometer and a professional infrared thermometers I have found the Thermohawk was within 0.5c-1.3c of the other testing methods. Now whether the Thermohawk is right and the others are slightly off is hard to tell. Which one is right? Who knows, but it is good to see that they are all within a degree or so.
One characteristic you have to know about thermometers like this is not to measure shiny surfaces like a mirror or anything foil. A highly reflective surface will screw the results up a bit. Also don't try to test a temperature of an object behind a piece of glass. The device will only give you the temperature of the glass. To most this seems pretty common sense but I just wanted to make sure someone wasted trying to do some covert temperature measurements =D.
Now on to my personal use with this wonderful product (yes, as you see I love it), I found a lot of practical ways to use this product. In Canada here, temperatures drop and heating bills sky rocket which forces cheap people like me to roam the house on a mission trying to find out where the heat is getting out and where the cold is coming in. Without this product I would have not been able to find the drafts around my windows and under my doors. Taking a reading right under the door had a reading of 2c which is chilly. Around a couple window frames in some areas I was seeing some temperatures in the 9-11c range. Taking the trim off and I found where the window installers had missed a spot when foam insulating around the new window frame. I sealed it up and the rooms temperature was up an additional 3c in two hours. I was able to find no less than nine other leaks around the house with the aid of this product. That is money saved and this product has already paid for itself. I also found a wall which was 7c cooler than the other walls and is showing signs of a lack of insulation and I will tackle that job this summer. Would I have been able to find these faults without this product?......not a chance.
Coming back to a computer application, with this product you will be able to pin point extremely hot ICs on your mother like the voltage regulators and be able to find out which ones are being hit the hardest through overclocking. By attaching some heatsinks to these components you can cool these overheating components down and thus gain a couple Mhz or just make your system more stable at stock speeds.
With this product, the applications are endless. From your household out to the car, from the computer to your appliances, you will be able to find an endless amount of applications to justify the US$59.99 for the 200, US$79.99 for the 400 and the US$99.99 for the 400L.