Induction Motor Testing Equipment

AT7™ Pro

Deenergized Motor Circuit Analysis™ (MCA) Diagnostic Instrument

Starting at $24,693.00 USD

The AT7™ Pro allows technicians to efficiently and accurately evaluate motors in the field, capture diagnostic motor data for condition monitoring, generate analysis reports, and more, on any type of motor — anytime, anywhere.

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  • Hand-held & Lightweight (under 1lb)
  • On-screen, step-by-step testing instructions
  • Quick Testing (less than 3 minutes per test
  • Test AC and DC motors, generators & transformers
  • Condition Monitoring & Trending Capabilities
  • Advanced Troubleshooting Functions (Z/θ Test)z
  • Custom Reporting Features
  • Remote firmware updates



MCA Software

Induction motor tester AT7 Pro by ALL-TEST Pro.


Test any motor’s resistance, stator, rotor, contamination and insulation stats all on one device and receive accurate diagnostics within as little as a few minutes.

In addition to the core functionalities of the AT7™, the AT7™ PROFESSIONAL has additional functionalities that test DC motor types, traction motors and transformers, and utilizes route based testing for data trending and analysis.

Use the AT7™ PROFESSIONAL for:

  • Offline testing of AC and DC motors, transformers, and generators
  • Testing installation and startup of new motors
  • Condition monitoring
  • Troubleshooting

The AT7™ Pro identifies:

  • Stator Issues
  • Rotor Issues
  • Ground Faults
  • Winding Faults
  • Open Connection Issues
  • Contamination Issues

Complete Motor Health Assessment

The electrical health of all motor components is evaluated, including, but not limited to induction windings, rotors, DC field windings and armature, field and rotor coils in synchronous motors, primary and secondary windings in transformers, and all associated connections and cables.

Patented Test Value Static™ (TVS™)

Test Value Static (TVS) technology uses a proprietary algorithm to create an overall ‘machine health’ value from a quick, 3-phase test that analyzes impedance, inductance, phase angle and current frequency, to trend over time.

Patented Dynamic Stator and Rotor Signatures™

Used to evaluate the condition of the stator and squirrel-cage rotor in a single test. Perfect for testing new and repaired motors prior to acceptance.


Meg-ohm Meter


AT7 Professional

Ground Faults




Internal Winding Faults




Open Connection




Rotor Faults








Beyond Traditional Induction Motor Testing

Use the ALL-TEST PRO 7™ Professional’s patented Stator and Rotor Signatures™ to test rotors and stators with a single assessment. Additionally, use the AT7 Pro  to diagnose common fault types, for condition monitoring, and nuanced troubleshooting.

Initiated from the motor drive or motor starter, Motor Circuit Analysis™ evaluates the health of a motor in a non-destructive manner. Diagnose ground faults and test stator windings, cables, and induction motor abnormalities and receive results all on screen within minutes.

With the high-tech capabilities of the ALL-TEST PRO 7™, you and your technicians can easily detect even the most subtle imbalances in any motor.



Using proprietary TVS Technology, the AT7 Pro allows users to conduct one simple, 3 minute test to create an overall ‘machine health’ condition to be trended over time. Deviations and/or fluctuations in the machine health value indicates a motor problem to be troubleshooted further.

Data can be transferred to a PC with MCA Software, for trending purposes, analysis, and generating reports.

Induction motor testing equipment by ALL-TEST Pro.

“The real key here is the time it saved. Having our people in-house using ATP instruments has proved to be a time-saver with great results.”

– Rich DaRe, Reliability Engineering Manager

Motor testing training seminar conducted by ALL-TEST Pro.


ALL-TEST Pro provides on-site and virtual comprehensive learning experiences that incorporate theory, new technologies, and practical field applications to educate attendees in the scope of motor diagnostics and comprehensive testing, including Motor Circuit Analysis™ (MCA™) and Electrical Signature Analysis (ESA).