NAPRO Eletrônica Industrial — Automotive Diagnostic and Emission Equipment
Technology that drives results

Complete solutions for
automotive diagnostics
and emissions.

With nearly 4 decades of experience, we develop and manufacture high-precision equipment for laboratories, workshops, automakers and vehicle inspection centers — ISO 9001 certified, with presence across Brazil and South America.

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Our Solutions

The right technology for every application

NAPRO Automotive Scanner

Automotive Scanner

Advanced diagnostics for light and heavy vehicles across multiple brands and systems.
NAPRO PC-Multigas

PC-Multigas

Gas analyzer with simultaneous measurement of CO, CO₂, HC, NOx and Lambda.
NAPRO NA9000 Opacimeter

Opacimeter

Smoke opacity measurement for diesel vehicles — NA9000 line.
NAPRO CPN-72 Particle Counter

Particle Counter

Solid particle measurement in exhaust gases — CPN-72, ideal for DPF and PTI.
NAPRO SHED Chamber

SHED Chamber

Evaporative fuel emission measurement per national and international standards.
NAPRO RPM Meter

RPM Meter

OBD or inductive rotation reading — compatible with light and heavy vehicles.
NAPRO FID Analyzer

FID Analyzer

Flame ionization detector for total hydrocarbon analysis — HFID NA22SH.
NAPRO Vehicle Inspection Lines

Inspection Lines

Complete PTI solutions for vehicle inspection centers — full equipment integration.
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04
Decades of history

Tradition and innovation since 1987

25,000+
Scanners sold

In Brazil and South America

2,500+
Analyzers sold

Brazil, Argentina, Uruguay and Venezuela

100%
Brazilian engineering

Specialized and certified

NAPRO Eletrônica Industrial headquarters
About NAPRO

Excellence in technology and commitment to results.

NAPRO® is a national reference in the development and manufacture of equipment for automotive diagnostics, testing and emissions — serving automakers, workshops, laboratories and inspection centers throughout Brazil and South America.

In-house engineering

Projects developed internally from concept to production.

Continuous R&D

Constant investment in research to keep up with standards and market demands.

ISO 9001:2015

Certified quality across all manufacturing and testing processes.

Specialized support

Dedicated technical team for after-sales service throughout Brazil.

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Companies that trust NAPRO

CETESB
Mercedes-Benz
Volvo
Bosch
Dafra
CETEC
COPPE UFRJ
CTEX
FIAT
FINATEC
General Motors
CIENTEC
Honda
Hyundai
SENAI
Scania
Institutos Lactec
Delphi
FEI
Petrobras
UNICAMP
Marelli
3CV Chile
Renault
Ford
UFMG
Umicore
UnB
Valeo
Volkswagen
Yamaha
Toyota
MAN
Agrale
Kia
CAOA
TECPAR
EPTC
IME
INMETRO
CNT
SEST SENAT
DEKRA
SGS
TUV Rheinland