Horiba Nitrate Ion Sensor / Electrode (S040)

Horiba Nitrate Ion Sensor / Electrode (S040)

The Horiba Nitrate Ion Sensor (Model S040) is a replacement ion-selective sensor designed for accurate measurement of nitrate ions (NO₃⁻) when used with compatible Horiba LAQUAtwin nitrate ion meters. Horiba develops this sensor to deliver stable, responsive, and reproducible nitrate measurements, even when working with very small sample volumes.

This sensor uses LAQUAtwin flat sensor technology, which allows direct measurement of nitrate concentration from a droplet or small liquid sample placed on the sensor surface. The flat design eliminates the need for beakers or conventional probes, enabling fast measurements, easy cleaning, and efficient operation in both laboratory and field environments.

By replacing an aged or worn sensor with the S040, users can restore original instrument performance and maintain reliable nitrate analysis. The sensor installs easily without special tools, minimizing downtime and simplifying routine maintenance.

Key Features

• Replacement nitrate ion sensor for Horiba LAQUAtwin meters

• Designed for nitrate ion (NO₃⁻) measurement

• Flat sensor technology for direct micro-volume measurement

• Provides stable, accurate, and reproducible results

• Fast response and easy maintenance

• Simple installation with no special tools required

• Suitable for laboratory and field applications

Technical Specifications

• Product type: Nitrate ion sensor (replacement)

• Measurement parameter: Nitrate (NO₃⁻)

• Sensor technology: Flat sensor (LAQUAtwin technology)

• Model code: S040

• Application: Nitrate ion measurement with minimal sample volume

• Compatibility: Horiba LAQUAtwin nitrate ion meters

Applications

• Replacement sensor for Horiba nitrate ion meters

• Nitrate analysis in water and aqueous samples

• Environmental and agricultural monitoring

• Water and wastewater quality testing

• Laboratory testing and education

• Field and on-site nitrate measurement