Extech 42275 Temperature & Humidity Datalogger Kit

Extech 42275 Temperature & Humidity Datalogger Kit


The Extech Datalogger Kit is a compact system that easily records temperature and relative humidity.


  • Records up to 16,000 readings
  • Logs data for days, weeks or months
  • Multiple dataloggers can be programmed and data downloaded from one single docking station
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The Extech Temperature & Humidity Datalogger Kit is a compact system that that logs data for days, weeks, or months.The meter collects humidity readings from 0 to 100% RH and temperature from -40 to 185 ̊F (-40 to 85 ̊C).  It can log up to 16,000 readings (8,000 each temperature & humidity) all in a waterproof housing. Multiple dataloggers can be programmed and data downloaded from one single docking station.The dock easily connects to a PC via the included RS-232 cable (or optional USB cable) and data can be further analyzed with the included Windows compatible software.


Programable sampling rates can be set from 1 second to 2 hours and high/low limits with alarm indication. The logger can be programmed and data stored and analyzed using the software. Three start methods are conviniently available: scheduled, immediate, or magnetic. The real time clock stores date and time with the data.

Notable Specifications:
  • Temperature range: -40°F to 185°F, 40°C to 85°C
  • Temprature resolution: 0.1°
  • Basic accuracy: ±1°F(-4 to 122°F), ±2°F (-40 to -4°F, 122 to 185°F), ±0.6°C (-20 to 50°C), ±1.2°C (-40 to 20°C, 51 to 85°C)
  • Humidity range: 0 to 100%RH
  • Humidity resolution: 0.1%
  • Humidity basic accuracy: ±3%RH
  • Datalogging interval: 1 second to 2 hours
  • Memory: temperature, 8000 points; relative humidity, 8000 points
  • Dimensions: 4.9 x 3.8 x 2" (123.8 x 95.3 x 51mm)
  • Weight: 9oz (254g)
What's Included:
  • (1) Datalogger
  • (1) RS-232 docking station & cable
  • (1) Windows compatible software
Image Part # Product Description Price Stock Order
Extech 42275 Temperature & Humidity Datalogger Kit 42275 Temperature & humidity datalogger kit with PC interface
Usually ships in 1-2 weeks
Image Part # Product Description Price Stock Order
Extech 42270 Temp/Humidity Data Logger for 42275 42270 Temperature & humidity data logger for 42275
Usually ships in 1-2 weeks
Extech 42299 Replacement 3.6 V Lithium Batteries 42299 Replacement 3.6 V lithium batteries, 2-pack
Usually ships in 1-2 weeks
Extech USB100 RS-232 to USB Adapter USB100 RS-232 to USB adapter
Usually ships in 1-2 weeks

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