Rotronic
HC2A-S – High-Accuracy Humidity and Temperature Probe
When your measurements depend on precision and stability, the quality of your sensor becomes critical.
Even small deviations in humidity or temperature can impact process control, product quality, and documentation.
The Rotronic HC2A-S is a high-accuracy digital probe designed for demanding applications where reliable and traceable measurements are essential.
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When Measurement Accuracy Affects Your Process
In many environments, humidity and temperature are not just reference values – they directly influence your process.
This can include:
- Stability of materials and products
- Performance of drying or climate-controlled processes
- Compliance with quality and regulatory requirements
If your measurements are unstable or drifting, it becomes difficult to trust your data.
The HC2A-S probe is designed to give you consistent and repeatable measurements over time.
How do you protect 800 years of history?
Discover how the Danish National Archives uses Rotronic humidity and temperature monitoring to preserve millions of physical documents in a 20,000 m² high-security facility. A precise and fully digital setup ensures stable climate conditions—down to the last degree and percentage.
High Accuracy with Digital Stability
The HC2A-S is based on Rotronic’s proven HygroClip technology with digital signal processing.
- Humidity accuracy: up to ±0.8 %RH
- Temperature accuracy: up to ±0.1 °C
- Excellent long-term stability with low drift
- Fast response time for changing conditions
Each probe stores its own calibration data, ensuring that measurement accuracy is maintained regardless of the connected device.
In practice, this means you get stable and reliable data – even in demanding environments.
AirChip Technology Ensures Stable and Intelligent Measurement
The HC2A-S features Rotronic’s AirChip 3000 technology, where signal processing takes place directly inside the probe.
This gives you a more stable and reliable measurement chain, as the signal is processed digitally before being transmitted to the connected device.
AirChip technology also enables a range of advanced functions:
- Temperature compensation for improved accuracy
- Calculation of dew point and frost point
- Integrated data processing and diagnostics
- Alarm and simulation functions
- Digital communication and system integration
- Automatic drift compensation for long-term stability
In practice, this means you get more than a sensor – you get a smart, self-contained measurement unit that ensures consistent performance over time.
Interchangeable Probe for Flexible Use
The HC2A-S is fully interchangeable and can be used across multiple Rotronic instruments and systems.
- Easy replacement without recalibrating the entire system
- Compatible with transmitters, handheld instruments, and laboratory devices
- Flexible deployment across different applications
This simplifies both maintenance and calibration workflows.
Designed for Integration and Control
The probe is part of a broader measurement ecosystem and can be integrated into:
- Industrial transmitters (e.g. HygroFlex series)
- Handheld instruments (e.g. HygroPalm)
- Laboratory systems (e.g. HygroLab)
- Monitoring systems (RMS)
This allows you to use the same measurement principle across your entire setup.
Reliable Measurement Under Varying Conditions
The HC2A-S probe is designed to perform under changing environmental conditions.
- Accurate measurements across the full humidity range (0–100 %RH)
- Stable performance under temperature variations
- Built-in compensation ensures reliable data
This ensures that your measurements remain dependable even in dynamic environments.
Applications
The HC2A-S is used in industries where humidity and temperature control are critical:
- Pharmaceutical and biotech production
- Laboratories and calibration environments
- Food and beverage processing
- HVAC and indoor climate control
- Industrial manufacturing processes
What This Means for Your Work
With the HC2A-S probe, you get:
- Reliable and traceable measurements
- Reduced maintenance effort with interchangeable probes
- Stable long-term performance
- Flexible integration across systems
- Confidence in your measurement data