Refrigeration and air conditioning systems along with heat pumps are electrical systems and are therefore subject to electrical testing in some cases. Whether this involves multimeters, clamp meters, current testers or voltage testers – thanks to innovative technologies and simplified application, Testo’s measuring instruments measure electrical parameters safely and precisely.
testo 760 digital multimeter: Recognizes measurement parameters automatically
testo 770 clamp meter: Get a good grip on cables – even when things are tight
testo 750 voltage tester: Easy to read from any position
testo 755 current/voltage tester: A voltage tester that also measures current
testo 745 non-contact voltage tester: Filters high-frequency interference
The testo Smart App guides you quickly and easily through measurements on refrigeration, air conditioning and heating systems.
Now new:
PRO measuring programs for increasing the efficiency of your applications
Multifunctional
Compatible with all Bluetooth-enabled Testo measuring instruments
Efficient
Direct report dispatch by e-mail
Fast
All measurement values at a glance
Easy
Intuitive measurement menus
Clever
Free download, free use
NEW
PRO measuring programs
At Testo, you’ll find the right measurement technology for a cost and energy efficient operation of heat pumps. You also make sure the environment isn’t burdened by any leaked refrigerant.
Pressure and temperature testing
Controlled refrigerant service
Easy tightness testing and evacuation
Download the exclusive practical guide for free now.
Understanding refrigeration systems
Evaluating refrigerants
Thermodynamics
Main components of the compression refrigeration circuit
Subcooling / Superheating
And much more ...
What I’d like to tell other technicians is that this instrument really saves a lot of time, and you don’t have to take that much stuff along, you’ve got less to do yourself because the testo 557s does everything for you.
Tom Siben
·Service technician at Lennox
We used to have to work with analog measuring instruments and needed a notepad, plus we needed external temperature probes. Testo has now incorporated all of that into one instrument. This makes it easier and much quicker for us to satisfy the customer with regard to the performance of their equipment.
Peter van Vliet
·Croonwolter&dros
My first impression is very positive; a very nice, new measuring set that you certainly won’t regret purchasing as a refrigeration technician. I don’t think any other brand can compete with it.
Marco Slump
·Owner of Slump Heating and Refrigeration Technology, Appingedam (NL)
Find all the latest news, tools and trends: get our free HVAC/R magazine and find out everything about the big trends in industry. Benefit from exclusive professional tips, and gain fascinating insights into the testo Smart World.
The top trends in the industry
Special report: heat transition
Exclusive professional tips
Automation vision
And lots more!