Electrical measuring instruments – the new generation

Testo sets new standards in electrical measuring technology.

Whether multimeters, clamp meters, current testers or voltage testers – thanks to innovative technologies and simplified application, Testo’s measuring instruments measure electrical parameters such as current, voltage or resistance more reliably and precisely than ever before.

Find out about service, calibration and training as well. For better performance in electrical measuring technology.


How to contact us.

Do you have any questions?
We're happy to help you.
Phone: 1-800-227-0729
E-Mail: info@testo.com


Clever digital multimeters

Testo’s digital multimeters manage without a dial and avoid any incorrect settings! It doesn’t matter whether you are measuring a voltage or an ionization current – there couldn’t be more reliability.

  • Automatic detection and selection of measurement parameters via socket assignment
  • Easy operation via function keys and large illuminated display
  • With true root mean square measurement TRMS

Innovative clamp meters

Don’t you have the ideal clamp meter for non-contact measurement of both current as well as voltage and other electrical parameters in tight switching cabinets? We do.

  • Innovative clamp mechanism to grab individual cables without any problem
  • With additional functions for starting current, output and measurement in the μA range
  • Communication with the testo Smart Probes App via Bluetooth

Voltage testers which also measure current

The first voltage testers in line with DIN-EN 61243-3:2010 which also measure current. Ideally suited for almost all measuring tasks involved in testing current and voltage.

  • Reliable voltage display, even with an empty battery
  • Measure immediately without any switching on or selection
  • Exchangeable measuring tips