testo 745 - Non-contact voltage tester

Order-Nr.  0590 7450

  • Voltage range up to 1,000 V

  • Waterproof and dustproof according to IP 67

  • Adjustable for phase detection or voltage indication

  • Visual and acoustic signal

The testo 745 non-contact voltage tester is ideally suited for fast initial checking of any suspected fault sources. It filters high-frequency interference signals and has a two-stage sensitivity setting.



Product Description

The testo 745 non-contact voltage tester means you can quickly and easily determine voltage or de-energization. In contrast to most other models on the market, it has a filter for high-frequency interference signals which enables reliable voltage indication. If voltage is determined, the instrument gives a warning via a clear visual and acoustic signal.

The sensitivity of the instrument can be set in two stages: stage 1 for phase detection, stage 2 for voltage indication. The integrated torch also enables you to work safely in dark surroundings. In addition, the testo 745 voltage tester is both waterproof and dustproof according to IP 67.

Delivery Scope

testo 745 non-contact voltage tester, including batteries, calibration protocol and instruction manual.

Technical Data

AC voltage

Measuring range

12 to 1000 V

General technical data

Operating humidity

0 to 80 %RH


63 g


155 x 25 x 23 mm

Operating temperature

-10 to +50 °C

Product colour


Protection class



EN 61326-1; EN 61010-1

Alarm function

via LED; audible

Battery type

2 AAA micro batteries

Storage temperature

-15 to +60 °C

Overvoltage Category

CAT IV 600V; CAT III 1000V



Instrument Measurement Functions

Measuring point illumination



Ideal for voltage testing

  • Voltage range up to 1000 V, filter for high-frequency interference signals, waterproof and dustproof according to IP 67, adjustable sensitivity (2 levels), visual and acoustic signal, integrated torch for measuring point illumination

Overview of applications

  • Non-contact voltage testing
  • Searching for cable breakages
  • Locating live and neutral wires