The good reviews have tricked me this device to buy what I do not regret it. As already noted by other reviewers, the device must be at room temperature, and indeed new again every time when one in another room with another temperature changes (indoors, outdoors, basement, etc.). I use the thermometer generally to temperature differences (cold spots) and temperatures of exhaust pipes to measure (stove, heater). There seems to me to be satisfactory. My tests compared to two other certified thermometers have shown that you have to add 1.5 ° C with a decreasing tendency in the range of 0 ° C to 100 ° C to the measurement result. In the area of my freezer thoroughly and + 2 ° C. For temperatures below -10 ° C and 100 ° C I lack the refrigeration units, or corresponding calibrated thermometers. Interestingly, the manual with respect to measurement range and accuracy: In the "temperature" you will find the following: -50 to + 380 ° C; 0-380 ° C: + 1.5 ° C -50 ° C to 0 ° C: + 3 ° C under "precision" finds only three words: what is greater. All right? It is probably meant that you have to add between 1.5 and 3 ° C in order to obtain the correct measurement result. From this point you can live with it. Those who want further details must lie significantly more money.
