The Rotronic DT722 is a rugged stainless-steel humidity and temperature transmitter designed for harsh industrial environments. It provides 4–20 mA outputs, fast response, and long-term stability and withstands temperatures up to 150°C, making it ideal for HVAC, food, pharma, and process applications.

Key Features 

• Measures RH, Temperature, and Dew Point

• Stainless-steel housing (Ø19 mm probe)

• Works up to 150°C probe temperature
  

• Accuracy at 25°C:

  • Humidity: <±2% RH

  • Temperature: ±0.2°C typical

• Fast RH response: <10 sec

• Long-term stability: ±1% RH/year

• 4–20 mA outputs for RH and Temperature

• Wide supply range: 8–32 VDC

• IP65 protection (NEMA 4)
  

Technical Specifications 

Applications 

• HVAC monitoring

• Industrial drying processes

• Food and beverage production

• Pharmaceutical manufacturing

• Printing & paper industry
  

What’s in the Box

• DT722 stainless-steel transmitter

• Selected probe length

• Protection cap/filter (model-dependent)

• Cable connector (optional based on order code)

FAQ 

Q: Does the DT722 support dew point output?
Yes—dew point calculation is built into the transmitter.

Q: Are Rotronic HC2A probes compatible?
No—DT722 uses its own probe platform.

Q: What output signals are available?
Two channels: RH 4–20 mA and Temp 4–20 mA.

Q: What cable connector should I use?
A000031 (2 m cable) or A000032 (5 m cable).