Model # HT20

Internet #205478348

General Tools RH/Temperature USB Data Logger with LCD

General Tools

RH/Temperature USB Data Logger with LCD

$6202 /each
store icon Loading Buying Options...
package icon Loading Buying Options...
Sorry, but we ran into issues loading these options. Please try refreshing.

Frequently Bought Together

Product Overview

Since 1910, General Tools has grown to become the recognized industry leader for specialty hand tools and instruments. The HT20 RH/Temperature USB Data Logger can be deployed on a job site or in key areas of a facility and left unattended for days, weeks or months. The temperature and humidity readings it makes and collects can be uploaded to a PC and viewed in Excel, making it easy to spot trends and unexpected excursions.

California residents: see   Proposition 65 information

  • Units can be deployed and left in place over duration of the job to monitor the drying process
  • Plug-and-play USB 2.0 interface; no need for cables, cradles or docks
  • 1-button starts/stops logging without a PC
  • Large storage capacity: Up to 16,000 pairs of RH and temperature readings
  • 3-1/2-digit LCD displays real-time temperature and RH readings, device working status and “memory full”
  • Wide measurement ranges of: -4o to 158oF for temperature and 0 to 100% for RH
  • Included software is used to set sampling time (from 10 seconds to 12 hours) and Hi/Lo temp and RH alarm set points
  • Software also calculates dew point and wet bulb temperatures, and mixing ratio as GPP (grains per pound) or GPK (grams per kilogram)
  • Includes software on mini-disc, USB extension cable, user’s manual, 1-year limited warranty

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.

Compare Similar

$62.02 /each
$78.98 /each
$107.05 /each
$116.88 /each
Name RH/Temperature USB Data Logger with LCD Digital Psychrometer Data Logger Temperature with PC Interface Digital Hygrometer with 5 in. Probe
Brand General Tools General Tools Extech Instruments General Tools
Ratings (0) (3) (0) (0)
Test Meter Type Specialty Meter/Tester Specialty Meter/Tester Specialty Meter/Tester Specialty Meter/Tester
View Product View Product View Product View Product



Product Depth (in.)
Product Height (in.)
Product Width (in.)


Battery Power Type
Lithium Ion
Battery Size
Lithium Ion
Display Type
Backlit,Data Hold,Data Log/Record
Number of Batteries Required
Product Weight (lb.)
Test Meter Type
Specialty Meter/Tester
Tools Product Type
Test Meter

Warranty / Certifications

Manufacturer Warranty
1 Year

More Products With These Features


Customer Questions & Answers

My lab requires these loggers be calibrated for accuracy periodically. How is accuracy guaranteed & who provides the service & certificate for such?

Asked by: kerry
  • y_2017, m_8, d_18, h_1CST
  • bvseo_bulk, prod_bvqa, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasquestions, tq_1
  • loc_, sid_205478348, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING), SortEntry(order=BEST_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=POSITIVE_ANSWER_FEEDBACK_COUNT, direction=DESCENDING), SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 96ms

Customer Reviews

  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 172ms
  • bvseo-msg: The resource to the URL or file is currently unavailable.;