NH₄⁺ · Smart Ammonium Ion Sensor

M200 Smart Ammonium Ion Sensor

PVC membrane ion selective electrode (ISE) directly measures ammonium ion in water, 0.1–18000 ppm range, 0.001 ppm resolution, ±5%FS accuracy, automatic temperature compensation. IP68 full protection, A/B/C housing styles for submersion / flow-through installation, RS485 digital direct to monitor host, reagent-free, low maintenance, suitable for wastewater and industrial process water body online monitoring.

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Ammonium Ion Sensor
18000 ppm
Max Range
0.001 ppm
Resolution
±5 %FS
Measurement Accuracy
IP68
Full protection · RS485
Features

Reagent-free Ion Selective Method, Ammonium Ion Long-term Online

PVC membrane ISE electrode directly measures ammonium ion, no reagents required and no peristaltic pump; wide range with auto temp compensation, stable readings, low maintenance, long-term online reliable.

Advanced Circuitry

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

Easy Installation

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

Industrial-grade Protection

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

Fast Response

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

Model Selection

Ammonium Ion Sensor Model Overview

The series supports multiple installation methods and water types. Filter by installation method, then add a model to your selection list or contact our engineers for verification.

M200-ION-NH4-A
RS485 Digital
Style A · Submersion (PPS)
Range0.1–18000 ppm
Sensitive MembranePVC Membrane
pH Range4–10 pH
Housing MaterialPPS
WastewaterRiver WaterPower Plant
M200-ION-NH4-B
RS485 Digital
Style B · Flow-through (ABS)
Range0.1–18000 ppm
Sensitive MembranePVC Membrane
pH Range4–10 pH
Housing MaterialABS
Tap WaterEffluent MonitoringCirculating Water
M200-ION-NH4-C
RS485 Digital
Style C · Submersion (POM+Stainless Steel)
Range0.1–18000 ppm
Sensitive MembranePVC Membrane
pH Range4–10 pH
Housing MaterialPOM+Stainless Steel
Aeration TankInfluentDenitrification Control
Specifications

Complete Specifications

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

Measured Parameter
Ammonium Ion (NH₄⁺)
Measuring Range
0.1–18000 ppm
Measurement Principle
PVC Membrane ISE Method (ISE)
Suitable for pH Range
4–10 pH
Measurement Accuracy
±5%FS
Resolution
0.001 ppm
Repeatability/Linearity
±4%
Temp. Compensation
Automatic
Temp. Measurement range
0.0–50.0°C
Pressure Range
0–1 bar
Relative Humidity
<90%
Housing Material
PPS (Style A) / ABS (Style B) / POM+Stainless Steel (Style C)
Process Connection
G1 · G3/4 · G3/4 · NPT3/4 · M39×1.5
Cable Length
Standard 5m (customizable)
Protection Rating
IP68
Power Supply
DC9–30V (recommended DC12V)
Electrical Connection
RS485 (MODBUS-RTU) or 4-20mA Analog
Installation
Submersion (Style A) / Submersion (Style C) / Flow-through (Style B)
Warranty
Half a year
Applications

Suitable Water Types

Ammonium ion (ammonia nitrogen) is the most critical nutrient salt indicator for wastewater denitrification process and aquaculture water body safety. PVC membrane ion selective electrode reagent-free online monitoring, suitable for long-term unattended operation. Different water bodies categorized below, you can choose the corresponding housing style and housing.

Wastewater & Denitrification

5
Wastewater TreatmentBiological TankNitrification/DenitrificationEffluent MonitoringDenitrification Control

Water Supply & Aquaculture

5
Drinking WaterTap WaterAquacultureSwimming PoolRiver Water

Industrial & Pharmaceutical

3
Boiler WaterPower PlantBiopharmaceutical

Environmental Monitoring

3
Surface WaterRiver MonitoringLandscape Water
Get a recommendation

Tell us your water type and range, we'll recommend an Ammonium Ion model

Send us the on-site ammonium ion range, water body pH and installation conditions, and our engineers will respond with an ammonium ion selection recommendation including housing style, sensitive membrane, housing and installation. Ammonium ion probe plug and play connects to 8-channel monitor host, can be linked with pH and other ion parameters.

Contact an engineer