What it is
See the signal. Solve the fault.
The Power Probe Maestro is the flagship of the Power Probe range and the first of the Pro Series. It combines the classic power-and-ground circuit tester with a colour LCD, a scope-like Trace mode, full multimeter functions, guided diagnostics and Bluetooth connectivity to the Power Probe app — so you can visualise, record and share electrical faults from a single handheld.
// Function 01
Power & Ground
Activate motors, relays, injectors & solenoids at the tip
// Function 02
Trace (Scope)
View live waveforms on the colour LCD — no separate scope
// Function 03
Power Probe App
Record, stream & data-log traces over Bluetooth
// Function 04
Guided Diag
Step-by-step on-tool guidance + EZ Learning videos
Features & functions
- Apply battery power or ground at the 4 in probe tip to functionally test motors, lamps, relays, injectors and solenoids — on or off the vehicle
- Colour LCD with a scope-like Trace mode visualises live sensor and actuator signals without a separate oscilloscope
- Bluetooth Power Probe app — record and stream traces, data-log screenshots and document a fault for the customer
- Full multimeter: True-RMS AC, peak-to-peak, min/max, frequency, duty cycle, resistance and continuity
- Fuel-injector test mode and glitch capture (> 380 µs) for catching intermittent faults
- Guided diagnostics and built-in EZ Learning videos help run the most common tests correctly
- Scan-tool compatible via the Power Probe app; rugged IP54 dust- and splash-resistant housing
Computer-safe: a 0.1 mA floating tip and a self-resetting 8 A thermal breaker protect the vehicle's modules and the tool — no fuses to replace.
Technical specifications
| Function | Range / value |
|---|---|
| Operating voltage | 9 – 30 V DC (12 / 24 V systems) |
| Voltage measurement | –100 to 200 V DC / AC |
| Resistance | 0.01 Ω – 10 kΩ |
| Frequency | 1 Hz – 9999 Hz |
| Glitch capture | > 380 µs min pulse width |
| Circuit breaker | 8 A thermal, self-resetting |
| Power lead | 23 ft (7 m) |
| Connectivity | Bluetooth — Power Probe app |
| Ingress protection | IP54 |
What's in the box
1× Power Probe Maestro tester · 1× 4 in (10 cm) probe tip · 1× battery clipset · 1× alligator clip adapter · 1× instruction manual · hard carry case