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Dual Channel Temperature/Relative Humidity

US Prices 
CDN Prices

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Rugged, waterproof temperature and relative humidity logger with built-in sensors

-25 to 85°C/0 to 100% RH

The TGP-4500 monitors temperatures from -25 to 85°C, and relative humidity from 0 to 100% using built-in sensors. The coated RH sensor offers good resistance to moisture and condensation, and like the rest of the Plus 2 range, this accurate and reliable unit is ideal for monitoring in outdoor and industrial applications.

This logger requires Tinytag Explorer software and a USB cable (CAB-0007-USB).



  • Built-in temp/RH sensor
  • Case waterproof to IP68
  • User programmable alarms
  • Optional audible alarm box
  • 32,000 reading capacity
  • High reading resolution
  • Fast data offload
  • Low battery monitor
  • User-replaceable battery


tgp-4017 sheet download Product Datasheet


Tinytag Explorer Software  

This is the easy to use Windows program needed to configure the logger and present the data. The Tinytag Explorer software licence allows unlimited users on one site.

Find out more about the Tinytag Explorer software

Calibration Certificates

You have the option of purchasing calibration certificates with our loggers. Standard measurement points are 0 and 30°C for temperature, 20 and 80 % RH (at 25°C) unless specified otherwise. If you don't order calibration, we guarantee the accuracy figures on our datasheets at the point of purchase.

Find out more about Tinytag calibration

Buy Online:

USA Office

Address: 1480 Gulf Road, Suite 837,
PO Box 1280
Point Roberts, WA 98281

Western Canada - Vancouver BC

Tel:1.800.663.6001 or 1.604.925.6150
Address: 2454 Haywood Ave
West Vancouver, BC V7V 1Y1

Eastern Canada - Markham, Ontario

Tel:1.800.465.0164 or 1.905.513.7027