Zebra Instruments Variable Speed Zebra - Advanced ECM Motor Diagnostic Tool System

Note: The VZ-7 no longer comes with the DVD because there is a QR code on the manual, sleeve, and add in kit that takes you directly to the video (on our YouTube channel) Variable Speed Zebra, The VZ-7 is a microprocessor-controlled diagnostic tool that performs sophisticated testing with only 4 switches. Many techs have some confusion about ECM motors and systems - and no wonder - with as many as 21 wires going to these new motors, you can't just use a voltmeter anymore for proper diagnosis. "The prior generation of tools can help, but fall far short of giving the tech complete information on why a system isn't operating correctly." The VZ-7 is a microprocessor-controlled diagnostic tool that performs sophisticated testing with only 4 switches. With it, a tech will be able to: Visually monitor signal calls from the furnace/air handler circuit boards. Interrupt those signals and send the motor any signals you desire, to observe motor operation. Get a visual display of motor RPM and the calculated CFM (on m...