Universal 24-72V brushless tester: complete diagnostics for motors, Hall sensors, and controllers without extra equipment
Is your electric vehicle refusing to start, and you’re unsure if the fault lies with the motor, the controller, or the throttle? Stop wasting hours guessing. This universal brushless motor tester pinpoints the exact source of the problem in minutes, using clear, unambiguous LED indicators.
It is compatible with any voltage between 24V and 72V. Whether you are working on e-bikes, e-scooters, or brushless scooters, if it has Hall sensors, you can diagnose it.
Note: Exclusively compatible with brushless motors equipped with Hall sensors. Not suitable for sensorless motors.
Why choose this tester? (Key advantages):
- Full 24V–72V coverage — works with the vast majority of brushless electric vehicles on the market today without the need for additional adapters.
- 5-in-1 testing modules — verify motor phases, Hall sensors, controllers, throttles, and brake circuits without switching equipment.
- Instant LED feedback — the central 5V LED and rotation LEDs tell you within 30 seconds whether the issue is with the power source, sensors, or phases.
- Portable design for mobile repairs — measuring just 10.5 × 7.5 × 2.5 cm, it fits easily into any technician’s tool kit or backpack.
- Weather-resistant — operates in temperatures ranging from -20°C to +50°C, making it perfect for use in unheated garages or outdoor environments.
Performance and Technical Details
The tester features five colour-coded connector groups — each corresponds to a specific component, ensuring you cannot make incorrect connections. Phase wires (yellow, green, blue) are fully isolated from the controller wires, allowing you to localise the fault precisely rather than by estimation. The central 5V LED is the key indicator for the health of the controller’s internal power supply — if it fails to light up, you know immediately that the fault is not with the motor. The ignition sequence of the rotation LEDs (left → right) confirms the correct order of phases and Hall signals, which is essential for a motor that runs smoothly and quietly.
| Parameter | Value / Detail |
|---|---|
| Compatible Voltages | 24V, 36V, 48V, 60V, 72V |
| Compatible Motor Type | Brushless with Hall sensors |
| Testing Functions | Motor phases, Hall sensors, controller, throttle, brake |
| Status Indication | Rotation LEDs + 5V central LED + Throttle LED (green/red) |
| Connector Groups | 5 colour-coded groups |
| Operating Temperature | -20°C – +50°C |
| Dimensions | 10.5 × 7.5 × 2.5 cm |
| Vehicle Compatibility | Electric bikes, electric scooters, brushless scooters |
Programming and Usage Instructions
Testing motor phase wires
- With the tester Off, connect the 3 motor phase wires to the corresponding group.
- Rotate the motor forward (for freewheel motors, rotate the wheel manually in the opposite direction).
- Check that all LEDs flash and observe the ignition sequence from left to right.
Testing Hall sensors and motor wires
- Connect only the Hall sensor connector to the tester. On some motors, you may need to remove the white plastic connector.
- With the tester On, rotate the motor forward.
- Check that all LEDs flash in the correct sequence (left → right).
Testing the controller
- Connect the throttle to the controller.
- Connect the controller’s phase and Hall wires to the corresponding groups on the tester.
- Connect the battery to the controller.
- Turn on the tester and check that the central 5V LED is lit.
- If the 5V LED does not light up, the controller is not supplying the correct voltage to the Hall sensors.
- Slowly rotate the throttle and check that the opposite LEDs light up and rotate accordingly.
Testing the throttle
- Connect the throttle to the first group of connectors on the tester.
- With the tester On, check that the throttle LED is green (resting position).
- Rotate the throttle fully — the LED should follow the sequence: green → off → red (maximum opening).
- If the LED does not follow this sequence, the throttle or the cables are faulty.
Package Contents
- 1× Universal brushless motor tester with Hall sensors
- Pre-installed colour-coded connectors
Frequently Asked Questions
Does it work with any brushless motor?
It works with brushless motors equipped with Hall sensors found on 24V–72V e-bikes and e-scooters. Sensorless motors are not compatible.
What does it mean if a Hall sensor LED does not light up?
The respective Hall sensor or its associated wire is faulty and needs to be replaced.
Why doesn’t the central 5V LED light up when testing the controller?
The controller’s internal 5V power supply is faulty, or the red or black wire of the Hall connector is broken.
The LEDs light up in reverse order (right → left). Is this a problem?
Yes — a reverse sequence indicates a mismatch between the Hall wires and the motor or controller phases. This is resolved by reordering the connections.
The phase LEDs seem to flash simultaneously. Is this normal?
At high wheel speeds, the LEDs may appear to flash simultaneously. The important thing is that they all light up — the sequence becomes visible if you reduce the rotation speed.
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