Nitrate Ion Selective Electrode (ISE)

When it comes to measuring nitrate concentration in aqueous samples, the ISE Nitrate Ion Selective Electrode from NT Sensors is an excellent choice. Our innovative research and use of the latest nanotechnology have allowed us to manufacture high-quality, reliable, and low-volume nitrate ISEs.

Nitrate concentration is an essential parameter in almost all water quality studies. Acidic rainfall, fertilizer runoff from fields, and plant or animal decay or waste can increase nitrate concentration. However, the applications for this ion go beyond water quality analysis. Nitrate ISEs can also be used to measure nitrate ion selective electrodes in soil extracts, soils and plant tissue, and food items such as meat, potatoes, or spinach.

Our Nitrate Ion Selective Electrode is a half-reference electrode and an all-solid state. As with all PVC ISE membranes, the ISE has a limited lifespan. However, our replaceable module allows for hassle-free maintenance. Simply discard the used membrane module and replace it with a new one.

At NT Sensors, we understand the importance of accurate and reliable nitrate ion measurement in various applications. That is why we offer a range of nitrate modules and sensors to meet your specific needs. Check out our selection of nitrate ISEs and take advantage of our innovative technology for precise and fast nitrate analysis.

In conclusion, if you need to measure nitrate concentration in aqueous samples or other matrices, the ISE Nitrate Ion Selective Electrode from NT Sensors is the ideal choice.

Trust our expertise and experience in electrochemical sensor technology to provide you with reliable and accurate results every time.


Range (concentration):  0,6 to 31000 mg/L  / 1×10-5 to 0,5 (mol/L)
Reproducibility (precision): ±10% of full scale (calibrated 10 to 1000 mg/L)
Interfering ions: Br -, NO2 -, OH -, Cl -, CH3COO –
pH range: 2–11 (no pH compensation)
Temperature range: 0–40°C (no temperature compensation)
Electrode slope: +56 ±4 mV/decade at 25°C
Electrode resistance: 1–4 MΩ
Immersion minimum: 2 mm
Body diameter: see different sensors

nitrate single ion

Mini ION Nitrate

ISE Nitrate


Single Probe



ISE Nitrate meter + pH

The imacimus kit analysis system allows the direct measurement of the exact concentration of nitrate, thus giving rise to rapid analysis and greater reliability.

kit nitrate ion meter

Single probe nitrate

Nitrate single ion


Single ION pH

pH single ion


nitrate meter

pH nitrate meter


USB cable

USB Cable


NT Sensors software

software imacimus

Single Ion: Nitrate electrode

The most classic look-like ion selective electrode, with innovative replaceable tip and probe holder for several tip sensors. Discover this electrode, one body, multiple sensor tips.

Nitrate ion-selective electrode probeREF: S062
Diameter: 12 mm

Conector type:
– BNC (standard)
– USB (imacimus meter)

Minimum sample volume: 5 ml
PDF information about Single Ion

Automatic nitrate ion meter

OutputsDigital: USB / UART
Analog: 4-20mA signal
Automatic operationsCalibration, measurement and cleaning.
Measure rate (min)1 sample/ 24 hours
Measure rate (max)48 samples/ 24h
Installed electrodes ISE NO3-

ISE Nitrate

Where is Nitrate measurement required so far?

A nitrate meter is used to measure the concentration of nitrate in water. Nitrate is found naturally in water and is not harmful at low levels. At high levels, however, nitrate is harmful to aquatic ecosystems and, if found in potable water, can also be harmful to human health.

Our nitrate monitor is ideal for commercial and industrial uses, such as monitoring water discharged from factories and wastewater that is to be released into a river having been treated. NT Sensors nitrate meters are also used for environmental monitoring purposes.

Finally, the NT Sensors Nitrate Ion meter can be used to measure NO3-N concentration in soil samples. It is an easy-to-use pocket-sized meter that provides quick results for on-site testing, thus eliminating the need to transport samples to a laboratory for colorimetric or chromatography analysis performed by trained analyst.

Soil testing has been used effectively over the years in determining the availability of nutrients for plants. Nitrogen is one of these essential nutrients, which is converted to amino acids and then utilized in producing necessary enzymes and structural parts of the plant.