Effective device with small mistakes

Regarding the measurement characteristics, there is no criticism: Good resolution of 0.1 ° C allows the determination of thermal bridges to buildings by measuring the wall temperatures indoors. A direct comparison of internal walls with exterior walls do not mind that the accuracy of 1-2 degrees is much worse than the display accuracy. The distance to spot size ratio is sufficiently small, by the double laser sighting as detection aid is also over distances of varying quite possible the adjustability of the emissivity of the surface to be measured is useful.

Also in the kitchen is a variety of uses, such as a frying pan temperature resulting measure before placing the steak, actual temperature of an oven during the heating, temperature of food, but this is the display resolution of 0.1 degree not required and also a simpler, cheaper device sufficiently.

However, in my device some unpleasant effects, with whom I can live but:
The supplied 9V battery was already installed and empty, a re-measurement of the quiescent current when not in use returned 46 microA, thus a built-in battery also keep when not in use only about 3 months. Take out the battery when not in use: Remedy. The stated battery life of 40 hours continuous operation is only valid for operation without Laser Pointer (about 5mA) is with laser pointer the current consumption about 30mA, ie it can be expected approximately 6 hours of continuous operation.
The manual is catastrophic, the English version is slightly better. Thus, powder of charcoal in the German translation. It took some time of trial and error until it was clear that can be laser pointer and backlight only within 5s after a measurement with the corresponding arrow keys on / off.

Conclusion: a versatile usable device at a fraction of the price of equivalent devices from leading manufacturers, if you can live with the small problems.