42270: Temperature/Humidity Datalogger


  • Wide operating temperature range: -40 to 185°F (-40 to 85°C)
  • Humidity range: 0 to 100% RH
  • Records up to 16,000 readings (8,000 readings for each parameter)
  • Use in storage containers, shipping vans, freezers and more
  • Logs data for days, weeks or months – up to 1 year battery life
  • Programmable sampling rate from 1sec to 12hrs plus Hi/Lo limits with alarm indication
  • LCD displays current temperature/humidity
  • Requires 42275 docking station for programming and data download
  • English Datasheet
  • English User’s Manual

Available on back-order

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Temperature/Humidity Datalogger for 42275 docking station kit

The 42270 is an Additional Humidity and Temperature Datalogger for use with Extech 42275 and 42276 Kits. Datalogger measures temperature from -40 to 185°F (-40 to 85°C) and relative humidity from 0 to 100%. It can record up to 8000 readings of each parameter. Meter has a programmable sample rate of 1 second to 12 hours plus high and low alarm. A 42275 or 42276 kit is required to connect the datalogger to a PC for programming and data retrieval.

Specifications Range Max Resolution Basic Accuracy
Temperature -40°F to 185°F (-40°C to 85°C) 0.1° ±1°F/ ±0.6°C
Humidity 0 to 100%RH 0.1% ±3%RH
Datalogging Interval 1 sec to 12 hours
Memory Temperature: 8000 points; Relative Humidity: 8000 points
Dimensions 3 x 2.3 x 0.88″ (76 x 57.2 x 22.3mm)
Weight 2.6oz. (72.6g)