R-Type / S-Type :
Measures relative humidity and temperature and calculates the dew/frost point in offices and rooms where good looks play a role.
W-Type / D-Type :
Measures relative humidity and temperature and calculates the dew/frost point in HVAC applications focused on relability and repeatability.
Features :
- Accuracy: ±2 %rh / ±0.3 K at 23°C ±5 K
- Temperature limit at probe: -40…60 °C / 0…100 %rh
- Range of application electronics: -40…60 °C / 0…100 %rh, -10…60 °C with LCD
- Service interface
- Adjusted at 23 °C and 10, 35, 80 %rh
Source : http://www.rotronic.sg/humidity-measurement-feuchtemessung-temperaturmessung/humidity-measurement-feuchte-messung/hygroflex3-hf3.html