Power Probe Parasitic Draw Monitor with OBDII — PPDRAW, portable TFT display & rechargeable battery

If you work on cars or maintain a fleet, the PPDRAW gives clear, continuous readings of voltage and parasitic amperage while offering graphing and alarm features. It plugs into a vehicle’s 16‑pin OBDII socket to power the tool without disconnecting the battery, avoiding module resets or data loss during battery swaps. A rechargeable lithium‑ion pack and a color TFT make the PPDRAW a portable, easy‑to-read diagnostic instrument for technicians and DIYers alike.

How does the PPDRAW detect parasitic battery drain?

The unit measures tiny current flows and battery voltage over time, reporting both as numeric values and waveforms. This lets you spot abnormal drains that occur when the vehicle is parked or after key‑off events. The monitor’s adjustable alarm warns when draw exceeds a user‑set threshold.

• Precision current sensing to detect milliamp‑level drains
• Real‑time voltage and amperage readouts
• User‑adjustable alarm for configurable trip points

Why use the OBDII connection instead of disconnecting the battery?

Plugging into the OBDII port supplies the PPDRAW with a stable 12V feed while leaving vehicle systems intact. That prevents loss of radio presets, learned idle positions, security codes and other stored data. It also simplifies testing across multiple vehicles without battery clamps.

• Maintains ECU and accessory memory during battery service
• Quick swap between vehicles with 16‑pin OBDII access
• Safe powering method for modern electrical systems

What does the waveform graph show and how is it useful?

The graphing mode plots voltage and amperage over time so you can visualize transient events, intermittent drains and patterns tied to timers or modules. Seeing the waveform helps determine whether a drain is constant, pulsing or triggered by a specific action. That accelerates diagnostics compared with static meter readings.

• Dual‑trace display for voltage and current
• Captures short events that typical meters miss
• Exportable snapshots help document findings

What practical features help technicians in the shop or field?

The PPDRAW combines a rechargeable lithium‑ion battery, USB‑C charging, and a multi‑color TFT for dependable, portable use. Auto power‑off preserves the monitor’s charge, while the audible and visual alarms speed up troubleshooting. Compact form and clear menus make it suitable for both quick checks and extended diagnostics.

• USB‑C recharge for fast, universal charging
• Auto power‑off and adjustable power settings
• Audible alarm plus visual indicator for threshold breaches

Who is this for: The Power Probe PPDRAW is aimed at professional auto technicians, mobile mechanics and serious DIYers who need reliable parasitic draw detection without compromising vehicle memory. It’s also useful for fleet managers and restoration projects where preserving settings matters during battery maintenance. If you require precise current measurement, waveform analysis and the convenience of OBDII power, the PPDRAW is built to fit those diagnostics and field service workflows.