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Vehicle Inspection

Sound Level Meter
Vehicle Noise Inspection

Measurement of vehicle noise emission in dB(A) during the inspection sequence — integrated with the GIVE system for automatic comparison against regulatory limits and recording in the inspection report.

Objective noise emission measurement in the inspection sequence

The NAPRO sound level meter for vehicle inspection is integrated with the GIVE system and performs the sound measurement following the protocol defined for each type of vehicle — light vehicles, motorcycles or heavy vehicles — with specific criteria for each category according to current regulations.

The measurement is conducted at a standardised distance from the vehicle's exhaust at a set engine speed. GIVE guides the operator through the procedure and automatically acquires the measurement at the right moment, eliminating the possibility of operator error. The result is compared against the regulatory limit and recorded in the inspection report.

  • Measurement in dB(A) — A-weighted scale
  • Protocol guided by GIVE
  • Automatic acquisition at the correct moment
  • Configurable regulatory limits per vehicle category
  • Results recorded in the inspection report
  • Applicable to light, heavy vehicles and motorcycles

Measurement process

Standardised positioning

GIVE guides the operator in positioning the microphone at the correct distance and angle relative to the vehicle's exhaust.

Automatic acquisition

GIVE controls the engine speed and acquires the sound measurement automatically when the correct condition is reached.

Comparison and report

The result in dB(A) is compared against the limit for the vehicle category and recorded automatically in the inspection report.

Build your inspection line

The sound level meter is part of the complete NAPRO vehicle inspection line. Talk to our team for a customised project.