ISE · Ion Selective Electrode Sensor

M200 Ion Selective Electrode Sensor

Ion Selective Electrodes (ISE) directly measure specific ion concentrations in solution, covering ammonium, nitrate, fluoride, chloride, calcium, copper, sodium, potassium, lead, iodide and more. ppm-level wide range, ±5%FS accuracy. IP68 full housing protection with A/B/C three housing styles for submersion / flow-through installation. RS485 digital direct connection to monitor host.

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Ion Sensor
10+
Measurable Ions
±5 %FS
Measurement Accuracy
0.1 ppm
Typical Lower Limit
IP68
Full protection · RS485
Features

One Electrode, One Ion — Reagent-free Online Monitoring

Select corresponding sensitive membrane (PVC membrane / solid-state membrane / glass membrane) for different target ions. Reagent-free, fast response. A/B/C three housing styles compatible with submersion and flow-through installation.

Advanced Circuitry

High-impedance measurement circuit, high-precision acquisition of weak potential signals, anti-interference.

Easy Installation

A/B/C three housing styles, submersion / flow-through multiple methods, standard 5m cable.

Industrial-grade Protection

IP68 full protection, PPS / ABS / POM+Stainless Steel housing selectable.

Fast Response

Ion selective electrode fast response, reagent-free, low maintenance.

Model Selection

Ion Sensor Model Overview 10+

The series covers 10 target ion types. Each ion has A/B/C three housing styles for submersion and flow-through installation. Filter by sensitive membrane type, click a card to view the detailed model page for that ion.

NH4PVC Membrane ISE Method
Ammonium Ion NH₄⁺
Ammonium
Range0.1–18000 ppm
Resolution0.001 ppm
Accuracy±5%FS
IP68 · Submersion/Flow-through · 4–10 pH · RS485
View Series
NO3PVC Membrane ISE Method
Nitrate NO₃⁻
Nitrate
Range0.1–14000 ppm
Resolution0.001 ppm
Accuracy±5%FS
IP68 · Submersion/Flow-through · 2.5–11 pH · RS485
View Series
KPVC Membrane ISE Method
Potassium Ion K⁺
Potassium
Range0.04–39000 ppm
Resolution0.001 ppm
Accuracy±5%FS
IP68 · Submersion/Flow-through · 2–12 pH · RS485
View Series
CaPVC Membrane ISE Method
Calcium Ion Ca²⁺
Calcium
Range0.2–40000 ppm
Resolution0.001 ppm
Accuracy±5%FS
IP68 · Submersion/Flow-through · 4–10 pH · RS485
View Series
NaGlass Membrane ISE Method
Sodium Ion Na⁺
Sodium
Range0.1–23000 ppm
Resolution0.001 ppm
Accuracy±5%FS
IP68 · Submersion/Flow-through · >9 pH · RS485
View Series
ClSolid-state Membrane ISE Method
Chloride Ion Cl⁻
Chloride
Range1.8–35500 ppm
Resolution0.001 ppm
Accuracy±5%FS
IP68 · Submersion/Flow-through · 2–12 pH · RS485
View Series
PbSolid-state Membrane ISE Method
Lead Ion Pb²⁺
Lead
Range0.2–20700 ppm
Resolution0.001 ppm
Accuracy±5%FS
IP68 · Submersion/Flow-through · 4–7 pH · RS485
View Series
CuSolid-state Membrane ISE Method
Copper Ion Cu²⁺
Copper
Range0.064–6400 ppm
Resolution0.001 ppm
Accuracy±5%FS
IP68 · Submersion/Flow-through · 2–6 pH · RS485
View Series
ISolid-state Membrane ISE Method
Iodide Ion I⁻
Iodide
Range0.0064–50000 ppm
Resolution0.001 ppm
Accuracy±5%FS
IP68 · Submersion/Flow-through · 0–14 pH · RS485
View Series
FSolid-state Membrane ISE Method
Fluoride Ion F⁻
Fluoride
RangeTBD
ResolutionTBD
Accuracy±5%FS
IP68 · Submersion/Flow-through · TBD · RS485
View Series
Specifications

Complete Specifications

Series general specifications. Individual parameters vary by model (range, housing, output method), subject to selection confirmation.

Measured Parameter
Specific Ion Concentration (ISE)
Measurable Ions
NH₄⁺ / NO₃⁻ / F⁻ / Cl⁻ / Ca²⁺ / Cu²⁺ / Na⁺ / K⁺ / Pb²⁺ / I⁻
Measuring Range
0.0064–50000 ppm (varies by ion)
Measurement Accuracy
±5%FS (resolution 0.001 ppm)
Sensitive Membrane
PVC Membrane / Solid-state Membrane / Glass Membrane (by ion)
Suitable for pH Range
0–14 pH (varies by ion)
Temp. Measurement range
0.0–50.0°C
Pressure Range
0–1 bar
Housing Material
Style A PPS / Style B ABS / Style C POM+Stainless Steel
Process Connection
Style A G3/4·NPT3/4 · Style B M39×1.5 · Style C G3/4·G1
Cable Length
Standard 5m (customizable)
Protection Rating
IP68
Electrical Connection
RS485 (MODBUS-RTU)
Installation
Submersion (Style A/C) / Flow-through (Style B)
Warranty
Half a year
Applications

Suitable Water Types

Ion Selective Electrode provides reagent-free online monitoring for different target ions, widely used in wastewater denitrification, aquaculture, chemical processes and power plant pure water. After selecting the target ion, you can choose the corresponding sensitive membrane and housing style.

Wastewater & Denitrification

4
Wastewater TreatmentNitrification/DenitrificationAmmonia Nitrogen/Nitrate NitrogenEffluent Monitoring

Aquaculture

3
Pond AquacultureCirculating Water AquacultureWater Quality Early Warning

Industrial Processes

4
ChemicalFertilizerPharmaceuticalFood

Power & Pure Water

3
Power PlantBoiler WaterUltrapure Water
Get a recommendation

Tell us your target ion and range, we'll recommend an ISE model

Send us the ion type, range and installation conditions, and our engineers will respond with an ion selection recommendation including sensitive membrane, housing style, housing and installation. ISE probe plug and play connects to 8-channel monitor host.

Contact an engineer