Testo 0590 7503 750-3 - Digital Voltage Tester with GFCI Test Tool_Stud Finder The testo 770 series of

The testo 770 series of instruments is rich in the features HVAC techs need and want

Durable molded case with storage for sensor

depending on what was detected

resistance

Testo 0590 7503 750-3 - Digital Voltage Tester with GFCI Test Tool_Stud Finder The testo 770 series ofTesto 0590 7503 750 3 Digital Voltage Tester with GFCI Test The 750 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. In addition to the above features, the testo 750 3 includes a 3 digit LCD showing the actual voltage measurements. The testo 750 voltage testers are the first instruments to include an all