Faster than Fast.

The latest in handheld hygrometry technology!


The attachments aren’t just included, they’re built in! The Protimeter Hygromaster 2 features outstanding performance with an easy-to-use interface, in addition to multiple Psychometric calculations and non-contact surface infrared (IR) temperature probe.


All Protimeter instruments have a two-year warranty.


Hygromaster 2


  • Infrared non-contact surface temperature
  • Psychometric Calculations
  • Data logging
  • Simple to use interface with color display
  • Benefits

  • Fast temperature and humidity response
  • Replaceable humidity and temperature sensor
  • Highly accurate
  • Applications

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

    Gross Weight 8 oz (227 gms)
    Dimensions (LxWxH) 7 in X 3.2 in X 1.5 in (178 mm X 81 mm X 38 mm)
    Display Color LCD
    Batteries (Included) 9 V
    Warranty 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 68°F (20°C).
    41% to 98% RH (±2%) at 68°F (20°C).
    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.


       S=Standard supply    O=Optional
      HygroMaster 2 Short QuickStick HygroStick Cable and Software Carry Case Surface Temp Sensor Flooring Kit Humidity Extension Lead 30cm Humidity Probe
      POL7750 POL8751 POL4750 BLD7759 BLD7750-POU BLD5808 BLD7750-CKIT BLD5802 BLD8755
    BLD7750 S O S S S O O O O
    BLD7751 S S O S S O O O O

    Note BLD7751 with short QuickStick is recommended for general measurement and BLD7750 with Hygrostick is recommended for high RH harsh environment application such as ERH concrete floor measurement