Hygroflex HF5 Advanced Humidity and Temperature Transmitter
Rotronic HygroFlex HF5A – Advanced Humidity & Temperature Transmitter (Multiple Wall & Duct-Mount Versions)
High-accuracy, industrial-grade humidity & temperature transmitter platform with interchangeable HC2A probes, dew/frost point calculation, digital options, and robust housing for HVAC and process applications.
The Rotronic Hygroflex HF5A is a robust, high-precision humidity and temperature transmitter ideal for industrial environments. It offers advanced signal outputs, NFC configurability, and compatibility with a wide range of probes.
VERSIONS COVERED
HF5A – Standard Wall Version
For HVAC, comfort monitoring, AHUs
Works with HC2A probes
IP65 housing
Scalable analog outputs with optional digital communication
HFSA – Advanced Wall Version (High-End HF5A Variant)
Uses RMS-HCD-S high-accuracy industrial probes
Designed for pharma, cleanrooms, and compliance-driven environments
Improved stability and drift performance
Compatible with RMS monitoring systems
HF5A Wall Mount + HC2A-S / RMS-HCD-S Probes
HC2A-S: ±0.8% RH / ±0.1 K accuracy
RMS-HCD-S: High-precision digital probe for regulated industries
Best for humidity-critical production and calibration rooms
HF5A Wall Version for Duct (with AC5005 + E2-F3A / HC2A)
Wall-mounted electronics and remote duct probe
AC5005 duct adaptor
Probe type options:
E2-F3A high-temp metal duct probe
HC2A standard duct probe
Ideal for AHUs, large ventilation ducts, industrial drying processes
HF5A Wall Mount PCD-S-XX (Panel / Cabinet Mount)
Front-panel mounting transmitter
For process instruments, control panels, test benches
Probe connected via cable (HC2A series)
KEY FEATURES
Works with HygroClip2 (HC2A / RMS-HCD-S) probes
High accuracy: ±0.8% RH / ±0.1 K with HC2A
Measures: RH, Temperature, Dew/Frost Point
Output options: 0–1V, 0–5V, 0–10V, 0/4–20 mA
Digital interfaces: USB, RS-485, Ethernet (depending on module)
Internal 2000-point data logging
Advanced sensor diagnostics & drift correction
Fast response time (probe dependent)
IP65 housings (except PCD-S-XX panel version)
FDA/GAMP compliant environment support
TECHNICAL SPECIFICATIONS
| Parameter | Value |
|---|---|
| Humidity Range | 0–100% RH |
| Probe Accuracy | ±0.8% RH / ±0.1 K (HC2A-S) |
| Dew/Frost Point | Yes |
| Outputs | 0–10V / 4–20mA |
| Digital | USB / RS485 / Ethernet (options) |
| Supply | 15–40 VDC / 12–28 VAC |
| IP Rating | IP65 (Wall, HFSA, Duct) |
| Data Logging | 2000 samples |
| Housing Material | ABS or Industrial Aluminum (HFSA, PCD-S-XX front panel) |
APPLICATIONS
HVAC & AHUs
Cleanrooms, pharma, biotech
Control cabinets & process instrumentation
Duct monitoring with remote probe
Industrial drying, environmental chambers
Calibration rooms & high-accuracy environments
WHAT’S IN THE BOX
HF5A transmitter (version-specific)
Probe (HC2A-S / RMS-HCD-S / E2-F3A based on model)
Wall/Panel mounting kit
Wiring guide
FAQ
Q: Can HF5A calculate dew point?
Yes, dew/frost point is built-in.
Q: Can I use RMS probes with HF5A?
Yes, HFSA and HF5A advanced versions support RMS-HCD-S.
Q: Is duct installation supported?
Yes—the HF5A duct version uses the AC5005 adapter and the E2-F3A or HC2A probe.
Q: Does HF5A log data?
Yes—internal 2000-point memory.