---
title: "How accurate is the Rhode Island breathalyzer?"
description: "The Intoxilyzer 9000 is rated at ±5% accuracy when properly calibrated and operated. Deviations from calibration, operator error, or sample contamination can produce readings significantly outside..."
url: https://riduilaws.com/faq-items/how-accurate-is-the-rhode-island-breathalyzer/
date: 2026-10-29
modified: 2026-10-29
author: "RI DUI Laws"
type: faq
lang: en
---

# How accurate is the Rhode Island breathalyzer?

The Intoxilyzer 9000 is rated at ±5% accuracy when properly calibrated and operated. Deviations from calibration, operator error, or sample contamination can produce readings significantly outside that range.

How accurate is the Rhode Island breathalyzer?[RI DUI Laws](https://riduilaws.com/author/admin_xxgjem88/)2026-10-29T22:15:21+00:00