Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week
Good quality plastic. Fits nice in hand. Easy to operate. Easy to find in dark places due to its bright orange color. Battery is included so you can start using instantly after delivery. Laser for aiming is quite powerful. Surprisingly accurate.
Since device based on measuring thermal radiation (a.k. black-body radiation), error increase greatly if object which is measured is white or reflective (mirror like, polished steal, snow) and also if other hot objects are near.
Problem associated with white or reflected surfaces can be easily solved by applying black duck-tape. I have it tested by measuring temperature of steal cup with black duck-tape on the side filled with hot/cold water and compered with readings of conventional thermometer dipped in water. Over 0-100C range error did not exceeded specifications.
Price-performance ratio is excellent. It is much cheaper than similar devices and accuracy is comparable with professional tools. Also acquire lots of black tape since most of surfaces require it for correct measurements.
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