The testo 175 series data loggers have a USB and an SD card interface, making readout of the data fast and easy. The considerably higher memory capacity and the power supply using conventional batteries are further plus points

Data security
Password protection
Anti-theft lock
Robustness
Large display
Longer battery life
Large memory

testo ComSoft Basic 5:
Graphic user interface guides the user step-by-step through the individual procedures
Convenient export functions, e. g. for further processing of the data in Microsoft Excel, or the generation of a PDF which can be made available to other users
The testo ComSoft Basic 5 offers all the basic functions of a logger software
Free download of the testo ComSoft Basic 5 with mandatory registration

testo Comsoft Professional V4:
For more comprehensive software (testo Comsoft Professional V4), please see RS 745-7043. Comsoft V4 includes data archiving and an online measurement function. Comsoft V4 is compatible with Windows 7, Windows®XP service pack 2 and Windows Vista. Computer interface required: USB 1.1 or higher and Internet Explorer 5.0 SP1 or higher. Compatible logger models: testo 171, 174, 175, 176, 177. Also compatible with the testo 435-4 Climate Tester.

Accurately measure and record temperatures in your industrial processes with this temperature data logger from Testo. It has an LCD screen that clearly displays your results. Thanks to its accuracy of +0.5°C, you can rest assured you'll get precise readings. A USB interface makes it easy to connect to a PC to store and analyse your data. This device is powered by AAA batteries for convenient portability.

• Broad temperature measuring range of -35°C to +55°C for use in demanding applications
• IP65 rating means it's dust-tight and protected against low-pressure water jets

• Industrial process controls
• Laboratory equipment

An NTC thermistor is a temperature sensor made from a semiconductor material. It's sensitive to changes in electrical resistance that correspond to changes in temperature, making it a precise way to measure and record relative temperatures.