testo 750-2 - Digital Voltage Tester with GFCI Test

Order-Nr.  0590 7502

  • GFCI Test Function

  • Single probe voltage testing

  • Patented all-around viewable LED voltage bar indication

  • Phase sequence test for determining motor rotation and polarity detection for VDC measurements

The testo 750-2 includes a single probe voltage tester, built-in flashlight, and GFCI test function. The 750-2/-3 can perform GFCI Circuit tests on AC outlets. When performing a GFCI circuit test, a 35 mA load is applied to the circuit. The testo 750 vibrates ensuring that the GFCI circuit test is active.  The testo 750 voltage testers are the first instruments to include an all-around viewable LED voltage indication. All three models include low input impedance, phase sequence, continuity test, and meet CAT III 1000 V CAT IV 600 V safety standards.

Product Description

Testo’s history of efficiency, innovation, and quality now extends into the entire electrical lineup. Once again, Testo brings high value, feature-packed products to the HVAC contractor market.


Delivery Scope

testo 750-2 digital voltage tester with low impedance, continuity, and phase sequence with GFCI test, and flashlight includes batteries, measuring tip protector, and measuring tip caps
DC voltage

Measuring Range

12 to 690 V


according to DIN EN 61243-3:2010

AC voltage

Measuring Range

12 to 690 V


according to DIN EN 61243-3:2010

General technical data


11 x 3 x 1 in. / 280 x 78 x 35 mm

Operating temperature

14.0° to 122.0 °F / -10 to +50 °C

Protection class


Battery type

3 x AAA

Storage temperature

5.0° to 140.0 °F / -15 to +60 °C


10 oz. / 295 g

Overvoltage Category

CAT IV 600V; CAT III 1000V



Instrument Measurement Functions

Continuity testing


RDC/RC trigger function


Rotating magnetic field testing


Single pole phase testing


Measuring point illumination


Transport Case