Data Logger Temperature and Humidity
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Data Logger - Temperature and Humidity Logging USB HT20

SKU# - HT20

The HT20 temperature and humidity data logger is ideal for water damage restoration and process control as well as environmental monitoring. Included PC software can also calculate and log dew point and wet bulb temperatures, and absolute humidity levels in units of grains per pound (GPP) or g/k

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    Market price: $79.99, you save $20.00
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Data Logger - Temperature Humidity Logging USB with LCD HT20

Temperature & Humidity Data Logging Instrument By General Tools 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 are collected and can be uploaded to a PC and viewed in Excel making it easy to spot trends and unexpected fluctuations in temperature and humidity.

Data Logging Temperature & Relative Humidity Features & Benefits:

  • USB interface; no need for cables, cradles or docks
  • Included interface software enables setting of:
    • Sampling time 10 seconds to 12 hours 
    • Hi/Lo alarm set points for humidity, temperature
    • Logging start/stop times
    • Temperature unit (°F or °C)
  • Software also calculates dew point
  • Uploaded data logs viewable as table or graph
  • One-click exporting of uploaded data to Excel or Word
  • Immediate, delayed or push-to-start logging
  • LCDs display real-time and Min/Max readings 

Click Here to Compare HT Series Temperature & Humidity Data Loggers
Click Here to See User’s Manual

HT20 Specifications:

Temperature measurement range:  -4° to 158°F
Temperature measurement accuracy:  1.8°F from 14 to 104°F
Relative Humidity (RH) measurement range:  0 to 100%
Relative Humidity (RH) measurement accuracy:  3% from 20 to 80%RH; ±3% elsewhere
Temperature response time:  5 to 30 seconds
RH response time:  8 seconds
Sampling time:  Adjustable for 10 seconds to 12 hours
Storage capacity:  16,300 pairs of RH and temperature readings
Length of USB cable:  7.9 inches
Dimensions:  4.96 x 1.10 x 2.01 in.
Weight:  1.41 oz.  without battery
Power Source:  "1/2 AA" non-rechargeable Lithium-Ion Battery (Type SB-AA02)
Battery Life (typical):  1 year


  • PC data logging/interface software on mini CD
  • USB extension cable
  • BA10 non rechargeable "1/2 AA" battery
  • User's Manual

One Year Limited Manufacture's Warranty

    • Weight
      0.5 lbs
    • SKU
  • GTIN
  • Manufacturer
    General Tools and Instruments

Product questions

  • Earvin Henderson
    07/28/2022, 04:35 PM

    Is the set software available for download from your website. Product description says software is included on a mini CD.

    07/29/2022, 10:58 AM

    Unfortunately the software is only available with the unit. General Tools technical support may be able to assist you further. Here is the url for their support page

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