Humidity transmitter or dew point transmitter, how should I choose?

Q：Humidity transmitter or dew point transmitter, how should I choose?

A：A humidity transmitter is suitable for general environments like office spaces.
A dew point transmitter is suitable for low humidity applications. Such as compressed dry air

THS88MAX Industrial Dew Point Transmitter

Operating range of dew point：-60 ... +60 dp°C
Output：RS-485+(4 ... 20 mA / 0 ... 10 V)
Accuracy：±1 ... ±2 dp°C
IP rating：IP65(Housing) / Filter IP20(Housing)

THM80X Series Industrial Grade High Accuracy Temperature & Humidity Transmitter

Measuring range : 0 ... +180℃
Output：0 ... 20 mA / 4 ... 20 mA / 0 ... 10 V
Accuracy：Temperature ±0.15°C / Humidity ±2%RH
IP rating：IP65

THS30X Series Multifunction Temperature & Humidity Transmitter

Measuring range：-40 ... +80°C
Output：4 ... 20 mA / 0 ... 10 V / RS-485
Accuracy：Temperature ±0.2°C / Humidity ±2%RH
IP rating：IP65