Fluoride ion selective electrode (ISE)

NT Sensors offers a range of high-quality fluoride ion selective electrodes that use cutting-edge nanotechnology to accurately measure the concentration of fluoride ions in aqueous solutions. Our electrodes are reliable, fast, and affordable, making them the ideal solution for analyze water and food quality.

The fluoride ion selective electrode features an epoxide body and can be used to determine fluoride-free ions in a variety of substances, including drinking water, soft drinks, wine, plants, food emulsions, and stripped acids. This electrode is essential for anyone looking to ensure the quality of their products or ensure safe consumption.

Excess fluoride in water can lead to a variety of health problems, such as tooth damage and growth disorders. It’s crucial to monitor fluoride levels, especially in sources like landfills. Rainwater can wash out substances from landfills, which can then enter the groundwater. To prevent potential damages, it’s important to monitor the leachate from landfills for fluoride concentrations.

Measuring Fluoride levels with our electrodes is a fast and affordable way to determine this important parameter in watery samples.

At NT Sensors, we are committed to providing our customers with the highest quality products at an affordable price. Our fluoride ion selective electrodes are no exception. Choose from our selection of ISE fluoride electrodes and take control of your water and food quality testing today.


Range (concentration): 0.1 to 1900 mg/L
Reproducibility (precision): ±10% of full scale (calibrated 10 to 1000 mg/L)
Interfering ions: Only hydroxide ions (OH-) affects to the fluoride measurement. To eliminate this interference, pH must be kept below 8
pH range: 4 to 8.5 (no pH compensation)
Temperature range: 5 – 50°C (no temperature compensation)
Electrode slope: 54 ±5 mV
Electrode resistance: 1–4 MΩ
Immersion minimum: 2 mm (without the protective cap)
Body diameter: see different sensors
* High ionic background (>0.01M), pH out of range and presence of Al3+ and/or Fe3+ in the sample
** High ionic background (>0.01M) or pH out of range.

Fluoride single ion

Mini ION Fluoride

ISE Fluoride


Single Probe



Nano 2.5: Miniature electrode for Fluoride

Nano probes that are ideal for research applications or ultra-low volume purposes. Capable to work in al positions (vertical, horizontal, upside down).  In addition, the carbon nanotubes provides the real miniaturization. Moreover, retaining good performance in terms of ease of use and robustness of operation.

Fluoride nano electrode

REF: M019
Diameter: 2,5 mm
Minimum sample volume: 0,25 ml

More information about
Mini 2.5
View product

Single Ion: Fluoride 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.

Fluoride ion-selective electrode probe

REF: S019
Diameter: 12 mm

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

Minimum sample volume: 5 ml
PDF information about Single Ion