The Rotronic HygroFlex5 HF5 Series is a universal transmitter platform for humidity, temperature, and dew point measurement. It supports wall, industrial wall (HF53S/HF54S), and duct (HF52/53/54D) versions, uses HygroClip2 probes, offers freely scalable analog outputs, and includes advanced features like AirChip technology, sensor diagnostics, and 2000-point data logging.

KEY FEATURES 

• Works with HygroClip2 probes (various types)
  

• Measures RH, Temperature & Dew Point

• Probe accuracy (HC2A series): ±0.8% RH / ±0.1 K
  

• Analog outputs: 0–1 V, 0–5 V, 0–10 V, 0/4–20 mA
  

• Optional digital outputs: Ethernet, RS-485, USB

• Fast response (probe dependent)

• Data logging: 2000 points internal memory

• Sensor diagnostics (drift, state)

• IP65 protection, UL94-HB fire class
  

• Wall & industrial housings support HC2A probes; duct model has probe extension

VERSIONS 

HF5 Wall Version (W)

• For HVAC rooms, plant areas

• Uses external HygroClip2 probe

• IP65

• Compact ABS housing
  

HF5 Industrial Wall Version (HF53S / HF54S)

• Heavy-duty aluminum housing 

• For harsh industrial environments

• Same electronics as HF5 but rugged construction
  

HF5 Duct Version (D)

• For ventilation ducts/AHUs

• Probe extension + IP65 housing

• Same signal output options
  

TECHNICAL SPECIFICATIONS 

APPLICATIONS 

• HVAC systems

• Ventilation shafts (duct)

• Food industry

• Pharma & cleanrooms

• Paper & printing

• Industrial process monitoring
  

WHAT’S IN THE BOX

• HF5 transmitter (Wall / Industrial / Duct)

• Mounting bracket & screws

• Wiring terminal guide

FAQ 

Q1. Can HF5 measure dew point?
Yes—internal psychrometric calculations.

Q2. What probes work with HF5?
HygroClip2 (HC2A series, standard or industrial).

Q3. Are digital outputs available?
Yes—RS-485, Ethernet (LAN/WLAN), and USB.

Q4. Does HF5 store data?
Yes—logs 2000 points.