The New Generation of Electrical Measuring Instruments

Testo is setting new standards in electrical measuring technology.
Whether they're multimeters, clamp meters, current testers, or voltage testers – thanks to innovative technologies and simplified applications, Testo’s measuring instruments measure electrical parameters, such as current, voltage, and resistance, more reliably and precisely than ever before.
Find out more about service, calibration, and training, as well, for better performance in electrical measuring technology.

Clever Digital Multimeters

Testo’s digital multimeters manage without a dial, and avoid 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
  • True root mean square measurement (TRMS)

Innovative Clamp Meters

Do you have the ideal clamp meter for non-contact measurement of both current and voltage, as well as other electrical parameters in tight switching cabinets? We do.
  • Innovative clamp mechanism for easily grabbing individual cables
  • With additional functions for starting current, output, and measurement in the μA range
  • Communication with the testo Smart Probes app via Bluetooth

Testers Measuring Current and Voltage

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