Handheld Instrument – Rotronic HP23-AW-A-SET-40


  • 2 input channels for HC2 station probes or HC2 insertion probes can be connected for measurement of water activity, relative humidity and temperature
  • AW Quick function for fast measurement results (typically 4-5 minutes)
  • Audible alarm to indicate completed measurement
  • Saves up to 10’000 data records with %rh, °C, date and time
  • Battery charging function

The HygroPalm AW sets are the perfect solution for on-site measurements. They are supplied in a tough, lightweight ABS carry case and include everything needed for measurement and calibration.

Set consists of:

  • Handheld instrument: HP23-AW-A
  • Measurement probe: HC2-AW
  • Sample holder: WP-40
  • Disposable sample container (13 pc.): PS-40
  • Humidity standard 10 %rh: EA10-SCS
  • Humidity standard 35 %rh: EA35-SCS
  • Humidity standard 50 %rh: EA50-SCS
  • Humidity standard


Range of application -10…60 °C (14…140 °F) / 0…1 Aw / 0…100 %RH
Power supply 9 V battery or USB/ mains adapter via mini USB
Calculations All psychrometric calculations available
Current consumption Max. 20 mA (backlight ON)
LCD 3-line alphanumeric with trend indicators
Measurement interval 1 s, 10 s, 1 min, 10 min
Number of probe inputs 1
Parameters shown Aw, % RH, °C, °F
Probe connections 2 HygroClip2 or analog input 0…3.2 VDC (power supply for analog probe: 5 VDC)
Start-up time 3 s
Acoustical alarm (Beeper) No
Battery indicator Yes
Clock Real time clock provides a time stamp for every measurement
Memory size Capture mode: 8 x 250 values / Logging mode: 10,000 values
HW4 compatible Yes, for all HW4 versions
Probe adjustment Single or multiple point for relative humidity & temperature.
One or two point temperature
Aw-quick mode Yes
Aw Quick function Integrated and via HW4 software HW4-P-QUICK-Vx (in shipment included)
Firmware update With internet and HW4 software
Communication interfaces Mini USB
Enclosure material ABS
IP protection rating IP30
Service Interface Mini USB
FDA / GAMP FDA 21 CFR part 11 / GAMP5
CE / EMC conform EMC 2008/108/EG
Weight 200g
Weight 300.0000



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