---
product_id: 32453628
title: "Apera Instruments, LLC-AI481 TN400 Portable Turbidity Meter, Infrared Sensor, ISO 7027 Compliant, EPA Approved Standard Solutions for Easy Calibration, Accuracy: ±2%+Stray Light"
brand: "apera instruments"
price: "€ 1218.65"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/32453628-apera-instruments-llc-ai481-tn400-portable-turbidity-meter-infrared-sensor
store_origin: ES
region: Spain
---

# ISO 7027 Compliant Accuracy ±2% 1-Year Shelf Life Apera Instruments, LLC-AI481 TN400 Portable Turbidity Meter, Infrared Sensor, ISO 7027 Compliant, EPA Approved Standard Solutions for Easy Calibration, Accuracy: ±2%+Stray Light

**Brand:** apera instruments
**Price:** € 1218.65
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into Clarity with Precision!

## Quick Answers

- **What is this?** Apera Instruments, LLC-AI481 TN400 Portable Turbidity Meter, Infrared Sensor, ISO 7027 Compliant, EPA Approved Standard Solutions for Easy Calibration, Accuracy: ±2%+Stray Light by apera instruments
- **How much does it cost?** € 1218.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/32453628-apera-instruments-llc-ai481-tn400-portable-turbidity-meter-infrared-sensor)

## Best For

- apera instruments enthusiasts

## Why This Product

- Trusted apera instruments brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quality Assurance:** CE and ISO 9001:2015 certified for peace of mind.
- • **Certified Confidence:** Trust in U.S EPA certified solutions for reliable results.
- • **User-Friendly Interface:** Navigate effortlessly with a large TFT screen for intuitive operation.
- • **Precision at Your Fingertips:** Experience accuracy with a ±2% measurement tolerance.
- • **Continuous Monitoring Made Easy:** Hold the Measure button for seamless continuous measurement.

## Overview

The Apera Instruments AI481 TN400 Portable Turbidity Meter is designed for professionals seeking reliable and accurate water quality measurements. Featuring an infrared sensor and compliance with ISO 7027 standards, this meter ensures precise readings with a ±2% accuracy. Its user-friendly TFT screen and continuous measurement mode make it ideal for both fieldwork and laboratory settings. With EPA-approved standard solutions that boast a 1-year shelf life, this turbidity meter is the perfect tool for ensuring water quality compliance.

## Description

Sponsored Ad - Apera Instruments, LLC-AI481 TN400 Portable Turbidity Meter, Infrared Sensor, ISO 7027 Compliant, EPA Approved Standard Solutions for Easy Calibration, Accuracy: ±2%+Stray Light

## Features

- Infrared sensor — ISO7207 compliant cephalometric method (90°)
- Intuitive operation system on a large TFT screen— measure and calibrate at ease
- U. S EPA certified, non-toxic polymer standard solutions with 1-year shelf life, easy-to-use
- Continuous measurement mode available by holding the Measure button for 3 seconds
- CE and ISO 9001: 2015 certified

## Images

![Apera Instruments, LLC-AI481 TN400 Portable Turbidity Meter, Infrared Sensor, ISO 7027 Compliant, EPA Approved Standard Solutions for Easy Calibration, Accuracy: ±2%+Stray Light - Image 1](https://m.media-amazon.com/images/I/71XM77L41vL.jpg)

## Available Options

This product comes in different **Pattern Name, Style** options.

## Questions & Answers

**Q: Is this unit capable of exporting the testing data?**
A: No.

**Q: Does it come with a wall plug?**
A: No

**Q: does equipment have spanish language?**
A: The instruction booklet we received was in English only. However, operation is very simple.

**Q: Hi, we would like to find a #2 sample vials replacement ( φ25×60 mm) for the apera instruments tn400. what is the right product to order?**
A: TN400-S2 (#1,#2,#3 sample vials, one of each). We have it available on our Apera official website - https://aperainst.com/tn400-s2-sample-vials-set.

## Frequently Bought Together

- Apera Instruments, LLC-AI481 TN400 Portable Turbidity Meter, Infrared Sensor, ISO 7027 Compliant, EPA Approved Standard Solutions for Easy Calibration, Accuracy: ±2%+Stray Light
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**Shop now:** [https://www.desertcart.es/products/32453628-apera-instruments-llc-ai481-tn400-portable-turbidity-meter-infrared-sensor](https://www.desertcart.es/products/32453628-apera-instruments-llc-ai481-tn400-portable-turbidity-meter-infrared-sensor)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-01*