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TGU-4500 Dual Channel
Temperature/Relative Humidity

US Prices 
CDN Prices

Privacy and Security Policy

Indoor temperature and relative humidity data logger with built-in sensors

-25 to 85°C/0 to 95% RH

The TGU-4500 monitors temperatures ranging from -25 to 85°C, and relative humidity from 0 to 95% using built-in sensors. It is primarily suited to indoor monitoring. However it can be used outdoors with appropriate protection such a Stevenson Screen. Like the rest of the Ultra 2 range, this accurate and reliable unit has a lightweight, splash-proof design.

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



  • Temperature logger using probe
  • 32,000 reading capacity
  • Delayed start option
  • Low battery monitor
  • User-replaceable battery
  • Splash-proof case (IP54)
  • High reading resolution
  • Fast data offload
  • User-programmable alarms


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
Address: 3075 14th Ave, Unit 219,
Markham, Ontario L3R 0G9