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Extech RhT 30 Humidity and Temperature USB Datalogger

KSh 19635

In stock

Extech RhT 30 Humidity and Temperature USB Datalogger Easy-to-use Datalogger Records Humidity and Temperature with Date/Time Stamp. It is designed with a rugged housing and a standard USB connector where stored readings (up to 48,000 data) are conveniently transferred to a PC in PDF or Excel spreadsheet format when plugged in.

Applications:  Chemical industry, food manufacturing units.

Extech RhT 30 Humidity and Temperature USB Datalogger features include an 8-location logger bookmark, 6-language options, programmable sampling interval, adjustable alarm, and password-protected security log-in. Large LCD optimizes viewing, and the smart LED provides color-coded humidity and temperature reading status.

Features of Extech RhT 30 Humidity and Temperature USB Datalogger:

  • Compact size housing with built-in NTC thermistor and capacitive humidity sensor designed with standard USB connector for easy data downloading to a PC
  • 5-digit LCD display with battery life indicator
  • User programmable settings: 6 languages, sample rate, start delay time, alarm delay time, high/low alarm range, and security feature
  • Status Indication via Red and Green LEDs
  • Start button begins continuous data logging, which continues until memory is full at 48,000 readings (24,000 for each parameter: Humidity/Temperature), or when the Stop button is pressed
  • Bookmark 8 locations in a data recording log with a press of the Mark button
  • Long battery life (approx. 3 months)
  • Generates a PDF report or Excel® spreadsheet with data and trending graph when plugged into a PC after data logging is completed (Adobe® Reader® required)
  • Max/Min function
  • Includes 2 CR2032 batteries, USB cover (can be used as a stand), wall mounting screw, and built-in hanger

Additional information



Model No

RhT 30

Temperature Range

-22 to 158°F (-30 to 70°C)

Temperature Accuracy

±1.0°F (±0.5°C)

Temperature Resolution

0.1 °C

Humidity Range

0.1 to 99.9%RH

Humidity Accuracy


Humidity Resolution


Datalogging interval

30 seconds to 2 hours

Memory Capacity

Temperature: 24,000 points; Relative Humidity: 24,000 points




90 Grams

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Extech RhT 30 Humidity and Temperature USB Datalogger

KSh 19635

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