The video demonstrates measuring DPF particles with a dedicated counter. A probe is placed in the exhaust, and the reading can be followed on the instrument’s screen. The free-acceleration mode is shown; the discussion explains that the roadworthiness inspection procedure uses a 15-second average to calculate its result.

During the demonstration, the display shows a reading of about 4.7 thousand, and the conversation estimates that the 15-second average in this case could be around 7.5 thousand. The video does not clearly state the measurement units, so these figures should be treated as instrument readings, not as a complete inspection report. The filter being checked is described as used, original and in good condition.

The instrument software can save a measurement by date or vehicle registration number and print it using a Bluetooth printer. The video also shows routine maintenance, including the replaceable instrument filter and periodic calibration. This check can help assess DPF operation, but a single measurement does not replace a full vehicle diagnosis.