I have this thermometer to a H-Tronic TS 125 in use. The temperature sensor of the TS 125 is its accuracy with +/- 0.5 ° C. This device measures the decimal point exactly the same values. I would therefore indeed be doubted that the supplied sensor +/- 0.1 ° C is exactly as far as I know there are those sensors not on the market. The sensor on the unit is still sensational and can engage with every professional and expensive sensor. I have not seriously believed that the instrument measures as accurately and am gobsmacked.
!! Danger !! Seller: Please mention in the product description! The humidity unfortunately I could not measure, and as we come to the only shortcoming of this product: Unfortunately, unfortunately the device only measures the humidity in the housing, an outdoor humidity can not be measured!
However, anyone who needs accurate temperature measurements, this bargain not to be missed. Conventional weather stations that are even far more expensive, measure the temperature next by up to 2.5 ° C.