Description
Protimeter – HygroMaster L – Humidity & Climate Measurement
The Protimeter HygroMaster L is a professional thermo-hygrometer designed to measure ambient humidity, air temperature, dew point, and specific humidity with exceptional accuracy. Built for restoration specialists, building inspectors, and HVAC technicians, it features a fast response rate, simple user interface, and a large colour LCD display for clear, real-time readings.
Available with either the Hygrostick (for high humidity and demanding conditions) or the Quickstick (for general use) humidity/temperature sensors, the HygroMaster L offers flexibility to suit different environmental applications. Both variants support psychrometric calculations and are supplied in a soft protective pouch for portability.
Key Features
✅ Measures ambient humidity, air temperature, dew point, and specific humidity
✅ Choice of Hygrostick or Quickstick sensors
✅ Stores up to 8,000 readings with manual or automatic data logging
✅ Large colour LCD display for clear visibility
✅ Replaceable humidity/temperature sensor for long-term accuracy
✅ Rugged and portable with soft case included
✅ Ideal for restoration, building inspection, and HVAC applications
Specifications
Humidity & Air Temperature
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Hygrostick: 30–40% ±3% RH at 20°C; 41–98% ±2% RH at 20°C; -10°C to 50°C ±0.3°C
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Quickstick: 0–10% ±3% RH at 20°C; 10–90% ±2% RH at 20°C; 90–100% ±3% RH at 20°C; -10°C to 50°C ±0.3°C
Surface Temperature Probe (BLD5808 – Optional)
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Range: 0°C to 70°C
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Accuracy: ±0.7°C at 25°C
General
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Data Storage: 8,000 readings on device / 6,100 with automatic logging
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Display: Colour LCD
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Power: 1 × 9V battery (included)
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Warranty: 2 Years on instrument (excludes wear parts/accessories)
Available Options (Variants)
| Variant Name | Model Number | UNIT SIZE | PACK TYPE | PACK SIZE |
|---|---|---|---|---|
| HygroMaster L w/ Hygrostick | BLD7750L | Machine | Thermo-Hygrometer Kit | Single Unit |
| HygroMaster L w/ Quickstick | BLD7751L | Machine | Thermo-Hygrometer Kit | Single Unit |



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