Handheld Water Activity Meter - Rotronic

Hygropalm HP23-AW-A

Easy Mobile Measurement of AW, Humidity and Temperature

SKU: HP23-AW-A Categories: , , Tag:


In many situations it can be very useful to measure water activity at goods-in, production or storage rooms, e.g. inspection of bulk materials to ensure they meet specifications.

  • Handheld instrument for measurement of water activity, relative humidity and temperature
  • AW Quick function for fast measurement results (typically 4-5 minutes)
  • Displays completed measurement
  • Saves up to 10,000 data records with %RH, °C, date and time
  • Battery charging function
Range of application-10…60 °C (14…140 °F) / 0…1 Aw / 0…100 %RH
Power supply9 V battery or USB/ mains adapter via mini USB
CalculationsAll psychrometric calculations available
Current consumptionMax. 20 mA (backlight ON)
LCD3-line alphanumeric with trend indicators
Measurement interval1 s, 10 s, 1 min, 10 min
Number of probe inputs2
Parameters shownAw, % RH, °C, °F
Probe connections2 HygroClip2 or analog input 0…3.2 VDC (power supply for analog probe: 5 VDC)
Start-up time3 s
Acoustical alarm (Beeper)No
Battery indicatorYes
ClockReal time clock provides a time stamp for every measurement
Memory sizeCapture mode: 8 x 250 values / Logging mode: 10,000 values
HW5 compatibleYes, for all HW5 versions
Probe adjustmentSingle or multiple point for relative humidity & temperature.
One or two point temperature
Aw-quick modeYes
Aw Quick functionIntegrated
Software UpdateWith internet and HW5 software
Communication interfacesMini USB
Enclosure materialABS
IP protection ratingIP30
Service InterfaceMini USB
CE / EMC conformEMC 2008/108/EG
Dimensions188 x 72 x 30mm

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