Description
Fast, accurate battery drain diagnosis — without disturbing vehicle sleep mode.
Pinpoint Parasitic Drains in Minutes
The Current Monitor Pro is the professional’s choice for diagnosing parasitic battery drain.
Unlike a standard multimeter or amp clamp, it connects in-line with the vehicle’s negative
battery cable and delivers a stable, accurate current reading — even during extended sleep
cycle monitoring — without pulling a single fuse or waking an ECU.Whether you’re chasing a stubborn overnight drain or benchmarking electrical health during a
WOF inspection, the Current Monitor Pro gives you ±3 mA accuracy and a built-in adjustable
alarm so you can step away while the car settles into sleep mode. When the threshold is
breached, it tells you.Works standalone, with your existing multimeter, or connected directly to an oscilloscope as
a custom current input probe — making it one of the most versatile diagnostic tools in the
workshop.
- In-line current measurement — no fuse pulling, no resetting modules
- Adjustable sound and light alarm: 100, 200, 300, 400, or 500 mA thresholds
- No automatic sleep/power-off during long-duration tests
- More accurate at low currents than a clamp meter — no drift over time
- Connects to hard-to-reach locations unlike bulky current clamps
- Three operating modes: standalone, with multimeter, or with oscilloscope
- Standard 4 mm banana sockets on both sides for universal probe compatibility
- Measures DC current to ±20 A continuous
- 20 A fused input with fast-acting overload protection
- Outstanding battery life — 300+ hours continuous (buzzer off)
- Low battery alert at 2 V; auto power-off at 1.7 V
- Compact and rugged — built for mobile and workshop use
| Power Supply | 2 × AA alkaline batteries — 300+ hours continuous (buzzer off) |
| Rated Continuous DC Current | ±20 A |
| Rated Dynamic Current (high frequency) | ±20 A |
| Current Measurement Accuracy | ±3 mA (+ multimeter error) |
| Measurement Output | 2 V (1 V/1 A conversion ratio) |
| Alarm Thresholds | 100 / 200 / 300 / 400 / 500 mA (selectable) |
| Sound Alarm | Buzzer — 88 dBA minimum at 10 cm |
| Fuse Protection | 15 A 5×20 mm fast-acting (20 A/5 min, 30 A/1 min, 40 A/50 ms, 100 A/10 ms) |
| Current Probe Connectors | 4 mm banana socket × 2 (black) |
| Multimeter Probe Connectors | 4 mm banana socket × 2 (black and red) |
| Low Voltage Alert | Below 2 V |
| Auto Power Off | Below 1.7 V |
| Weight | 0.5 kg |
The Current Monitor Pro is the right tool when:
- Diagnosing a flat battery complaint — connect in-line and monitor drain as modules cycle into sleep mode
- Verifying a repair — confirm parasitic draw is within acceptable limits before returning the vehicle
- Routine electrical health checks — benchmark current draw during WOF or service inspections
- Oscilloscope diagnostics — use as a 1 V/1 A current input probe to visualise current waveforms on any scope
- Mobile service work — compact enough to carry on a van, no laptop or software required
Normal parasitic drain reference: Most modern vehicles draw between 10–50 mA with everything off. Readings above 80 mA typically indicate a fault. Allow 15–40 minutes for all control modules to enter sleep mode before recording your final measurement.
Note: For diesel vehicles (and as best practice on all vehicles), always make a parallel bypass connection before disconnecting the negative battery cable. See the included user manual for the correct connection procedure.
📄 Download the Current Monitor Pro User Manual (PDF)
📄 Current Monitor Pro vs Multimeter — Comparison Guide (PDF)
📄 Download the Current Monitor Pro Product Flyer (PDF)
- Current Monitor Pro unit
- Current measuring test leads — 2 × 50 cm (4 mm banana connectors both ends)
- Multimeter test leads — 2 × 1 m, black and red (4 mm banana connectors both ends)
- Large crocodile clips 84 mm with 29.6 mm jaw opening — 2 × (black)
- Replacement fuses — 4 pieces
- 2-year warranty
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