Protimeter Hygromaster 2 Humidity and Temperature Meter

  • Measures surface temperature from -20˚C to 80˚C using probe or infrared
  • Measures air temperature and relative humidity using Quickstick or Hygrostick
  • Capable of performing ERH measurements in concrete flooring
More Info

Protimeter Hygromaster 2 Humidity and Temperature Meter

The Protimeter Hygromaster 2 Humidity and Temperature Meter deploys a multitude of different methods for measuring air and surface temperature in addition to ambient relative humidity (RH) and even equilibrium relative humidity (ERH) in concrete depending on the user’s chosen accessory kit.

The hygrometer measures temperature from -20˚C to 80˚C via non-contact infrared surface temperature measurement. It is also compatible with the optional BLD5805 contact surface temperature probe which can measure temperature from 0˚C to 70˚C with increased accuracy.

In terms of air temperature, the Protimeter Hygromaster 2 tester can take readings from 0˚C to 50˚C using either the Hygrostick provided in kit BLD7750 or the Quikstick provided in kit BLD7751. The difference between the two probes is in RH measurements where the Hygrostick measures between 30% and 100% whilst the Quickstick measures between 1% and 100%.

The Quikstick is recommended for general measurement whilst the Hygrostick is more suited to high RH measurements in harsher environments such as ERH concrete floor measurement.

In addition to these measurement functions, the Protimeter Hygromaster 2 tester can calculate surface proximity to dew point in addition to various other psychometric calculations. It can also be used to investigate dew point and condensation conditions.

The Protimeter Hygromaster 2 has a user-friendly interface with intuitive menus and simple navigation buttons. It can store up to 8000 measurements on its internal memory with a time-and-date stamp. It comes supplied with carry case and batteries as standard whilst you can choose between the Hygrostick and Quickstick sensors by selecting the correct kit in the drop down menu above. A two-year warranty is provided by the manufacturer.

Protimeter part number: BLD7750 / BLD7751


The HygroMaster 2 is a reliable tool in a number of situations. Potential applications include:

  • Flood damage restoration
  • Building survey
  • Concrete moisture
  • HVAC test and measurement
  • Commercial coatings

Key Features Protimeter Hygromaster 2

  • Surface temperature range (IR): -20˚C to 80˚C
  • Surface temperature range (contact): 0˚C to 70˚C
  • Air temperature range: 0˚C to 50˚C
  • RH range (Hygrostick): 30% to 100%
  • RH range (Quickstick): 1% to 100%
  • Suited for general measurement or ERH measurement
  • Calculation of dew point and surface proximity to dew point
  • Simple, user-friendly operation
  • Large internal memory for 8000 readings
  • Two-year warranty
  HygroMaster 2 with Hygrostick (BLD7750) HygroMaster 2 with Quickstick (BLD7751) HygroMaster 2 with Quickstick & Surface Probe (BLD7752) HygroMaster 2 Humidity Box Kit (BLD7759) HygroMaster 2 Flooring Kit (BLD7750FL) HygroMaster 2 with Hygrostick & Surface Probe (BLD7753)
External Humidity Box          
Drilling Tools & Sleeves          
Surface Probe          

Protimeter moisture meters by applications and functions

  Protimeter Aquant Protimeter BLE Protimeter Digital Mini Protimeter Hygromaster 2 Protimeter Hygromaster L Protimeter Mini Protimeter Mini C Protimeter MMS3 Protimeter ReachMaster Pro Protimeter Surveymaster2 Protimeter Timbermaster Protimeter MMS3 Flooring Kit
Find your Meter by application
Building Construction  
Building Survey  
Concrete floors          
Flood damage restoration    
Home Inspection      
HVAC Commissioning                
HVAC Commissioning                
Industrial Coatings                    
Marine Surveys                  
Wood Floors        
Wood Working                
Find your Meter by function
Pin moisture measurement          
Non-evasive Moisture Measurement                
Non-contact Temperature Measurement                    
Plug in Temperature Probe                  
Ambient Humidity                
Ambient Temperature                
Psychorometric Humidity Readings                  
Data Logging                  
WME Accessory Port            

What's In The Box?


  • Protimeter Hygromaster 2 Meter
  • Hygrostick sensor (30 - 100 %rh)
  • Carry case 
  • 2 x AA batteries
  • Instructions


  • Protimeter Hygromaster 2 Tester
  • Quickstick sensor (0 - 100 %rh)
  • Carry case
  • 2 x AA batteries
  • Instructions

Dimensions (LxWxH)

  • 7 in x 3.2 in x 1.5 in (178 mm x 81 mm x 38 mm)


  • 2” TFT colour display, 176 x 220, 256K colour

Batteries (Included)

  • 9V Alkaline


  • 24 months on mechanical or manufacturing defects. Does not include wearing part or accessories.

Plug in Temperature Probe Surface Temperature Probe - BLD5805

  • Range 32°F to 158°F (0°C to 70°C) 
  • Accuracy at 77°F (25°C) +/- 1.3°F (0.7°C)

Infrared Surface Temperature Range

  • IR Based – With 12:1 (D:S) Ratio Range -4°F to 176°F (-20°C to 80°C) Accuracy ±3.6°F (±2°C)

HygroStick Data (Nominal)

  • 30% to 40% RH (±3% RH) at 68oF (20oC).
  • 41% to 98% RH (±2%) at 68oF (20oC).
  • Range 32°F to 122°F (0°C to 50°C) ±0.6°F (±0.3°C)

QuikStick and QuikStick ST Data (Nominal)

  • 0% to 10% RH, ±3% RH at 68°F (20°C),
  • 10% to 90% RH, ±2% RH at 68°F (20°C),
  • 90% to 100% RH, ±3% RH at 68°F (20°C),
  • Range 32°F to 122°F (0°C to 50°C) ±0.6°F (±0.3°C) 
  • Nominal response 30% to 90% and back to 30% RH in 45 seconds @ 68°F (20°C)

Data Storage

  • Store up to 8,000 results with date and time stamp from all instrument functions with the push of a button. Store 6100 results with automatic logging.