Temperature Measurementange: 0°c To +50°c Accuracy Of The Measurement: ± 1°c (0°c To +40 °c) ± 2°c (40°c To +50 °c) Humidity Measurementange: 20% To 95% Accuracy Of The Measurement: ± 5% Rh (40% To 80%) ± 8% Rh (20% To 40% And 80% To 95%) Displays Maximum/minimum Temperature And Humidity Smiley Display :-) = 20-25°c, 30-60% Humidity (ideal) :-- = Any Temperature, 60% Humidity (wet) °c / °f Can Be Set Large Easy-to-read Display Fold-out Stand And Hook For Wall Fastening Incl. 1 X Cr2025 Battery Product Measurements (lxwxh): 99 X 81 X 11 Mm