TweakTown has posted a review on the Raytek MiniTemp MT4 portable noncontact thermometer.
I´ll try to explain it as best as possible, considering I´m no genius at this type of technology. The MT4 uses infrared thermometers which measure the surface temperature of an object using a laser. The MT4 optics are sense emitted, reflected and then transmitted natural energy (which all objects have - however, you will find that if you point the MT4 at the sky it will register a temperature, the sky does not have a surface, it registers a temperature because of the density of the atmosphere you point it at) is collected from the object and focused back onto a "detector", on the gun. The information is then collected by the detector and converted into an electrical signal at the decoder stage and is then translated into a temperature reading which is displayed on the LCD display.Read more
