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Schaller Humimeter RH2 Handheld Water Activity Meter
Measure water activity. Protect product quality. Support shelf-life control.
The Schaller Humimeter RH2 is a professional handheld instrument designed for accurate measurement of water activity (aw), relative humidity and temperature, with additional calculation of dew point, absolute humidity and equilibrium moisture content.
Water activity provides an important indication of the amount of freely available water within a product and is widely used within quality control, product development, storage assessment and shelf-life management.
The RH2 provides a 0.03–0.98 aw measuring range with 0.001 aw resolution, alongside relative humidity measurement from 0–100% RH and temperature measurement from 0–50°C. User-programmable characteristic curves can also be used for calculation of equilibrium moisture content.
For efficient quality-control workflows, the RH2 features Online, Hold and manual data memory functions, together with automatic data logging for up to 10,000 measurements with measuring point reporting.
When used with the dedicated RH2 water activity probe, rapid sample conditioning is supported by an integrated fan regulating air circulation, helping reduce equilibration time during routine testing.
Supplied Complete – RH2 Meter
The RH2 meter is supplied with:
- Humimeter RH2 Handheld Meter
- Rubber Protective Cover
- Batteries
Water Activity Probe Set
The compatible water activity probe set includes:
- RH2 Water Activity Probe with Integrated Fan
- 4 × Twist-Off Caps
- 2 × 186 ml Screw Glasses
- 2 × 245 ml Screw Glasses
- 5 × Certified Calibration Ampoules
- Factory Calibration Certificate
An optional USB data interface module with LogMemorizer software, USB flash drive and USB cable for PC and printer is also available for transferring, recording and analysing measurement data.
Ideal for food & beverage production, quality control laboratories, shelf-life assessment, storage monitoring, product development and research applications.
Understand available moisture. Protect quality. Control shelf life.
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Manufacturer
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Model Number
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Product Code
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Product Type
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Application
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Water Activity Range
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Water Activity Resolution
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Water Activity Calibration
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Extended Water Activity Calibration
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Temperature Range
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Temperature Accuracy
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Temperature Units
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Relative Humidity Range
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Relative Humidity Resolution
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Dew Point Range
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Dew Point Resolution
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Absolute Humidity Range
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Absolute Humidity Resolution
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Equilibrium Moisture Content Range
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Equilibrium Moisture Content Resolution
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Synthetic Granule EMC Resolution
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Characteristic Curves
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Measurement Modes
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Data Memory
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Auto Data Log
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PC / Printer Communication
| Manufacturer | Schaller |
| Model Number | RH2 |
| Product Code | WQA-12005/13700-1 |
| Product Type | Handheld Water Activity / Humidity / Temperature Meter |
| Application | Water Activity / Relative Humidity / Temperature / Dew Point / Absolute Humidity / Equilibrium Moisture Content |
| Water Activity Range | 0.03–0.98 aw |
| Water Activity Resolution | 0.001 aw |
| Water Activity Calibration | 0.10–0.80 aw: ±0.01 aw |
| Extended Water Activity Calibration | 0.00–0.10 & 0.80–0.98 aw: ±0.04 aw at 25°C |
| Temperature Range | 0–50°C |
| Temperature Accuracy | ±0.5°C at 25°C |
| Temperature Units | °C / °F Selectable |
| Relative Humidity Range | 0–100% RH |
| Relative Humidity Resolution | 0.1% RH |
| Dew Point Range | -55–60°C / -67–140°F |
| Dew Point Resolution | 0.1°C |
| Absolute Humidity Range | 0–130 g/m³ |
| Absolute Humidity Resolution | 0.1 g/m³ |
| Equilibrium Moisture Content Range | 2–30% |
| Equilibrium Moisture Content Resolution | 0.1% |
| Synthetic Granule EMC Resolution | 0.01% |
| Characteristic Curves | User-Programmable for Calculation of Equilibrium Moisture Content |
| Measurement Modes | Online / Hold / Manual Data Memory |
| Data Memory | 10,000 Logs with Measuring Point Report |
| Auto Data Log | Yes |
| PC / Printer Communication | USB Data Interface Module |