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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.


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.

What's Included:
  • Testo 750-1 digital voltage tester with low impedance, continuity, and phase sequence
  • Includes batteries, measuring tip protector, and measuring tip caps

Technical Data:
  • DC Voltage Resolution: 12 to 690 V / 12 V, 24 V, 50 V, 120 V, 230 V, 400 V, 690 V
  • DC Voltage Accuracy: according to DIN EN 61243-3:2010
  • AC Voltage Resolution: 12 to 690 V / 12 V, 24 V, 50 V, 120 V, 230 V, 400 V, 690 V
  • AC Voltage Accuracy: according to DIN EN 61243-3:2010
  • Protection class: IP64
  • Warranty: 2 years
  • Storage temperature: 5° to 140 °F / -15 to +60 °C
  • Weight: 8 oz. / 230 g
  • Overvoltage Category: CAT IV 600V; CAT III 1000V
  • Authorizations: CSA; TÜV; CE
  • Dimensions: 11 x 3 x 1 in. / 270 x 65 x 35 mm
  • Operating temperature: 14° to 122 °F / -10 to +50 °C

Key Features:
  • Patented all-around viewable LED voltage bar indication
  • 0 to 690 V AC/DC voltage measurement
  • Polarity detection for VDC measurements
  • Phase sequence test for determining motor rotation
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Manuals (1)
Product Type:
Voltage Tester
Cat III - 1000V
Cat IV - 600V
2 Years
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