---
title: Learn How to Test EVI Tags with Tagformance Pro
description: Download this app note to learn how to optimize and validate EVI tag performance through laboratory testing, on-vehicle measurements, and real-world field verification.
image: https://landing.voyantic.com/hubfs/AppNotes%20and%20White%20Papers/AppNote_Testing_EVI_Tags_with_Voyantic_Tagformance_Pro_Page_1.jpg
---

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# How to Test EVI Tags for Reliable Real-World Performance

Learn how to evaluate Electronic Vehicle Identification (EVI) tags with Voyantic Tagformance®, from laboratory sensitivity testing to on-vehicle validation and field performance verification.

![AppNote\_Testing\_EVI\_Tags\_with\_Voyantic\_Tagformance\_Pro\_Page\_1](https://landing.voyantic.com/hs-fs/hubfs/AppNotes%20and%20White%20Papers/AppNote_Testing_EVI_Tags_with_Voyantic_Tagformance_Pro_Page_1.jpg?width=1183&height=1673&name=AppNote_Testing_EVI_Tags_with_Voyantic_Tagformance_Pro_Page_1.jpg "AppNote_Testing_EVI_Tags_with_Voyantic_Tagformance_Pro_Page_1")

### Download the app note

## What you'll learn

- Best practices for testing EVI tags in laboratory and real-world environments
- How windshields and license plates impact RF performance
- Methods for optimizing read range and tag placement
- How to validate system performance before deployment

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