10 Best Emissions Analyzers 2025

Looking for a reliable and accurate way to diagnose your vehicle's emissions? Look no further than our top 10 list of Emissions Analyzers in the Diagnostic, Test & Measurement Tools category. From the NEXPEAK OBD2 Scanner to other top-rated brands, we've reviewed and scored many products, with scores ranging from 7.2 up to an impressive 9.4. But the NEXPEAK takes the cake with its enhanced OBD II auto code reader, making it the perfect tool for all OBDII vehicles manufactured after 1996. Say goodbye to check engine lights and hello to easy and efficient diagnostics with the NEXPEAK OBD2 Scanner. Keep reading for more in-depth reviews on our top picks.