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Psychrometer, Datalogger Digital


Price starts at $149.99

Product Code : RH350

Manufacturer : Extech

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Download or View this product's / series details and specifications Specifications (PDF)


  • Superheat differential measurements: T1-T2, Air-T1, T1-Dewpoint
  • Dual Type K external temperature probe inputs (T1, T2)
  • Simultaneous display of %RH, Temperature and Dew point or Wet Bulb or External Probe Temperatures
  • Built-in RS-232 interface (optional RS-232 cable) ? uses Windows Hyperterminal to download data to a PC
  • Memory stores up to 99 data records
  • Retrieve Max/Min readings with data and time plus Average function
  • Real time clock
  • Triple display with backlighting
  • Unique sensor cap design twists to closed position for protection during storage
  • Switchable øF/øC temperature units with 0.1ø resolution
  • Data Hold freezes current reading on display
  • Auto power off to save battery life
  • RH350 complete with two Type K bead wire temperature probes and 4 AAA batteries
  • Optional RH355 kit includes RH350, 33% and 75% calibration bottles, PC cable, and carrying case


RH355 Superheat Psychrometer Kit includes meter, 33% and 75% calibration bottles, 2 temperature probes, RS-232 cable, 4 AAA batteries and carrying case.

Humidity 10 to 90%RH
Temperature (internal) -4 to 122øF (-20 to 50øC)
Temperature (external) -328 to 2498øF (-200 to 1370øC)
Dew Point -90.4 to 122øF (-68.0 to 49.9øC)
Wet Bulb -6.9 to 122øF (-21.6 to 49.9øC)
Dimensions 9x2.2x1.7 (230x57x44)
Weight 5.3oz (153g)

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