Thermometer

Measuring range,  -20 to 50 degree C,    

Precision,    +/-2 degree C

Hygrometer

Measuring range, 20 to 98%RH,          

20 - 45 %RH and 75-98%RH,    +/-9%

45 - 75 %RH,                 +/-6%

Barometer 

Measuring range,  960 to 1060 hPa

Precision:  990 to 1030 hPa, ±5hPa

          960 to 990 hPa and 1030 to 1060 hPa, ±10hPa

dia. of 37mm,48mm,50mm, 60mm, 70mm, 90mm, 108mm, 130mm, 152mm, 165mm & 180mm available.