Starting at $24,695.00 USD

Energized Electrical Signature Analysis (ESA) Testing Instrument

Test your motor quickly and easily with the most complete energized motor and power diagnostic instrument, all in a handheld, lightweight package. The ALL-TEST PRO On-Line III™ electrical signature analysis tool delivers superior AC diagnostics for the evaluation of your motor health, including electrical and mechanical rotor health, stator health, air gap, and the entire driven load, whether geared, bladed, or belted.

This power quality and electric motor analyzer is the most complete electrical signature and power analysis instrument for AC/DC motors, generators, and transformers. The ATPOL III™ software analyzes and reports on the electrical and mechanical conditions of the entire motor or generator system. Track results easily with smart, automatic diagnostic tools for AC/DC motors, generators and transformers.

The ALL-TEST PRO On-Line III™ is the most complete energized motor and power diagnostic instrument available today – all in a handheld, lightweight package. It delivers superior AC diagnostics for the evaluation of electrical and mechanical stator health, rotor health, air gap, and the health of the entire driven load (belted, geared, bladed, etc.). This instrument also provides excellent diagnostics for DC motors, generators and transformers.

The ATPOL III™ offers many software and data analysis advantages compared to the competition, including key determinations that are made automatically, including:

  • Line frequency, running speed and pole pass frequency
  • Software automatically looks for patterns related to stator slot and rotor bar fault frequencies
  • Automatic detection of static or dynamic eccentricity faults
  • Evaluation of incoming power, including harmonics
  • Calculates efficiency for AC induction & DC motors
  • Power analysis includes sag/swell and transient detection, plus energy consumption data logging

The ATPOL III™ has passed the highest standards for CAT III 1000V. The CAT IV 600V rating signifies it is suitable for testing at the service entrance (≤ 600V).

Advantages of the ALL-TEST PRO On-Line III™

Confront the challenges of motor testing with tools from ALL-TEST Pro. The ALL-TEST PRO On-Line III™ goes beyond a standard electrical signature analysis. The ATPOL III™ software features superior diagnostic tools that are both smart and automatic. Maintenance staff can easily track the testing results and receive reports on the electrical and the mechanical condition of the motor.

Our power quality analyzer for motors is lightweight and easy to use. The ATPOL III™ fits into a small pouch so you can carry it anywhere the job takes you. The ATPOL III™ is equipped with Bluetooth® and allows users to safely and easily view and collect data from a laptop while outside of the arc flash zone. No need to keep track of additional cables.  Whether you’re testing your equipment in the field or performing a routine check of your motor assets, count on the ATPOL III™ to provide reliable results in a timely manner.

No need to deal with downtime and repair broken machinery after the fact. Follow trends over time and schedule maintenance as needed on your production schedule. With the ATPOL III™, you can act proactively to prevent common motor failures and make the most of valuable production time in your facility.

Why Test Motors?

We test motors because they fail. Undetected faults in a motor can cause the entire system to break down, resulting in unplanned downtime and disruptions to your operations. Downtime can be costly in addition to the cost to repair or replace damaged equipment. When it comes to motor health in any industry, what you don’t know can hurt your business. That’s why it’s critical to test your motors on a regular basis.

Regular motor testing allows you to shift your focus toward preventative maintenance rather than repairs and recovery. As a result, you can avoid downtime, minimize unforeseen costs and improve the safety of your workers. Our electric motor and power quality analyzer lets you take control of the unknown. With the ALL-TEST PRO On-Line III™, motor health monitoring is more accessible than ever.

Test Your Motor Safely and Accurately With the ATPOL III™ Electrical Analysis Tool

Testing and analyzing your motor health can prevent costly downtime as well as wasted resources. Get fast, accurate motor testing at any time with ATPOL III™. We serve all industries that rely on electric motors, transformers and generators.

Learn how to buy our revolutionary electrical analysis tool today, and change the way you manage the health of your equipment. If you have any questions about the ALL-TEST PRO On-Line III™, our team would be happy to offer assistance. Give us a call during business hours at 860.399.4222 or contact us online so we can offer our expertise and provide a quote.

The ATPOL III™ connection accessory offers significant advantages over conventional methods for collecting energized testing data while the motor is under load. The quick connection allows for testing without opening electrical panels, eliminating the need to suit up in bulky protection gear. Safety, ease of use, accuracy, and superior diagnostic results make the ATPOL III™ the best accessory for ESA motor testing.
Finding a motor fault before it breaks can save your organization countless hours of downtime and thousands of dollars in savings. The ATPOL III™ is actually two instruments in one – a complete Power Quality Analyzer (PQA) and a complete Electrical Signature Analyzer (ESA).
When in PQA mode, it can be used for:

  • Energy data logging
  • Harmonic analysis
  • Voltage and current charting
  • Viewing waveforms
  • Waveform sags and swells, transient, and event captures

When in ESA mode, it can evaluate the condition of the:

  • Incoming power
  • Control circuit
  • Motor and the driven load

The test results are easily stored and can be trended for condition-based maintenance or predictive maintenance purposes.

Improve the detection phase in your predictive maintenance testing program. Faults related to incoming power, the control circuit, the motor itself, and the driven load are detected, and can then be trended for predictive maintenance purposes and troubleshooting.

Test all types of electrical motors of any voltage, including AC (induction and synchronous) and DC (series, shunt, and compound), as well as transformers, generators, traction motors, and machine tool servo motors.

  • Fast – motor tests take only 60 seconds after connection to load
  • Testing distance – virtually unlimited between motor and load (including submersible equipment)
  • Early alert – detects faults at early stages before motor and motor system failure
  • User safety – Bluetooth® wireless communication enables remote operation including data collection
  • Quick asset management – Test Plan Manager allows for route-based testing and trending


Product Brochures

Product Spec Sheets

Product Case Studies



Press the Admin key to see if the instrument is holding the date and time. If it is not, contact [email protected] for further instructions.
Press the “Setup” key and scroll to “Erase Memory” then select “Yes”.
Failure of the battery to hold a charge could indicate needed battery replacement or a problem with the charger power supply. Contact [email protected] for guidance.


ALL-TEST PRO On-Line III™ Software

Includes Power System Manager (PSM) and Electrical Signature Analysis (ESA)


Included Accessories

ATP On-Line II™ Deluxe Voltage Test Leads w/Clips. CAT III 1000V
ATPOL™ Deluxe Voltage Test Leads w/Clips. CAT III 1000V
ATP On-Line II™ Hard Case
ATPOL III™ Hard Case
ATP On-Line II™ Portable AC Flex Probe 1-6000 Amp
Portable AC Flex Probe 1-6000 Amp (rated to CAT III 1000V, Requires ATPOL II™ FW 5.3 or Higher)
ATP On-Line II™ USB-Cable
USB Cable
ATP On-Line II™ Portable AC Clamp 0.1-100A. CAT III, 600V
Portable AC Clamp 0.1-100A. CAT III, 600V
ATP On-Line II™ micro usb adapter
Micro USB Adapter
ATP On-Line II™ SD Card
SD Card

Optional Accessories

ATP On-Line II™ Portable AC Clamp 1-1000A. CAT III, 600V
Portable AC Clamp 1-1000A. CAT III, 600V
ATP On-Line II™ Portable AC Clamp 0.02 - 5.0A. CAT III, 600V
Portable AC Clamp 0.02 – 5.0A. CAT III, 600V
ATP On-Line II™ Portable DC/AC Current Clamp 10-2000A DC, 10-1500A AC
Portable DC/AC Current Clamp 10-2000A DC, 10-1500A AC