The IRT0421 Non-Contact Infrared Thermometer with Laser is designed to accurately measure temperature from a distance. Simply pull the trigger and aim the pistol grip thermometer at an object using the laser indicator and the unit will provide an accurate temperature measurement in less than a second. The IRT0421 has an advanced highly accurate infrared sensor with a Distance to Spot Ratio of 12 to 1. It uses two AAA batteries instead of the 9-volt battery commonly found in less capable units. W
$ 46.79
Thermometer accuracy and emissivity,
Most people don’t seem to realize that the accuracy of this thermometer (all infrared temperature sensors) is very dependent on a property of every material called “emissivity”. In general, you will get a more accurate reading when the material has a high emissivity. Materials with low emissivity will reflect infrared light. If the material has a *very* low emissivity, such as with aluminum foil, then the device will be reading the temperature of the objects that are in the foil’s reflection – such as the kitchen, the oven interior surface, and even yourself. Luckily, most of the surfaces associated with foods being cooked have a high emissivity (water, flesh, oil, plant matter, etc), so the device will be fairly accurate with those. But there’s another thing to consider for cooking applications – this device still is only measuring the surface temperature. With foods like meats, you are still going to want to use a temperature probe so that you can measure the inside temperature.
This device should work well with measuring temperature of candy, melted soap, oils, foods cooked at relatively low temperature such as breads, or food that you are re-heating. It should also work very well for examining doughs.
It should also work well on most non-metallic painted surfaces.
It should work *somewhat* on windows, as they have a fairly high emissivity, and low transmittance to infrared (that is, infrared light does not pass through them even though visible light does).
Do *not* use it on any unpainted metals.
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|Good product –Great price,
I bought it because of the low price & was surprised to find it works just as well as more expensive Fluke thermometers I’ve used in the past. It works quickly, has a good distance to spot ratio and it’s priced just right. I’ve used it for everything from spot temp checks of computer equipment to checking my freezer & my ceiling insulation coverage. I would buy the same one again if it were lost or broken.
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|provides a fast ball park measurement,
Simple to use, no set up required.
Product does NOT have adjustable emissitivity which means it can read higher or lower than the real surface temperature depending on the reflective consistency of the surface being measured.
This product is fine for a quick ball park temperature reading and is great to use to scan across a surface to find any temperature deviation like a wall area.
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