The PCE-THB 38 Relative Humidity Meter is ideal for detecting and digitally displaying humidity, temperature and barometric pressure. Temperature is measured by an RTD sensor and air humidity is measured by a highly repeatable, capacitive sensor. The Relative Humidity Meter also calculates dew point and atmospheric pressure in a range of 10 to 1100 hPa. With all of these features, it is a complete climatological device. It is shipped from the manufacturer already calibrated. Otherwise, a laboratory calibration and certificate can be ordered which meets ISO calibration standards.
| Measurement ranges | 0 ... 50°C / 32 ... 122°F 10 ... 95% r.h. 10 ... 1100 hPa (mbar) -25 ... 49°C / -20.2 ... 120.2°F | 
| Resolution | 0.1ºC / 0.18ºF 0.1% r.h. 0.1 hPa ... 1000 hPa (but 1 hPa) 0.01ºC / 0.018ºF | 
| Accuracy | ± 0.8°C / ± 1.4°F ± 3% of reading or ± 1% (<70% r.h., but ± 3% r.h.) ± 1.5 hPa to 1000 hPa, but ± 2 hPa | 
| Operating temperature | 0 ... 50ºC / 32 ... 122°F | 
| Power | 4 AAA batteries | 
| Dimensions | 120 x 40 mm / 4.7 x 1.5 in | 
| Weight (with batteries) | 160 g / <1 lb |