AquaSense-NH4
Reagent-free ion-selective ammonium sensor with isolated power, custom calibration support, and RS485 / Modbus output for surface water, drinking water, and wastewater monitoring.
AquaSense-NH4 is an environmentally friendly, reagent-free ion-selective sensor designed for ammonium monitoring across surface water, drinking water, and wastewater. The submersible body supports direct in-situ deployment, and an isolated power-supply architecture delivers stable readings under noisy electrical conditions.
Reagent-Free
Ion-selective electrode removes the need for chemicals or kits.
Custom Calibration
Support for custom standard solutions and forward / reverse curves.
Direct Immersion
Submersible body for direct deployment in tanks, channels, and natural water.
Isolated Power
Isolated design improves data stability and noise immunity.
Industrial Electrode
Long-life industrial-grade electrode for continuous online operation.
Temperature Compensation
Built-in NTC temperature sensor with automatic compensation.
RS485 + Modbus
Digital RS485 output with Modbus RTU protocol for networked deployments.
Isolated Power
Isolated power-supply design improves data stability and noise immunity.
Direct-Immersion
Submersible body for direct insertion into pipes, tanks, and natural water.
Low Maintenance
Stable electrochemistry with simple field calibration workflow.
Overview
AquaSense-NH4 is a reagent-free ion-selective ammonium sensor for nutrient monitoring in fresh water, drinking water, and wastewater. The environmentally friendly design avoids consumables and chemical waste, and the submersible body supports direct deployment in tanks, channels, sondes, and natural water bodies.
The sensor supports custom calibration with user-supplied standard solutions and can be configured with either forward or reverse calibration curves to suit the local application. An isolated power-supply architecture provides strong data stability and immunity to electrical noise, while the RS485 / Modbus RTU output makes integration into existing telemetry straightforward.
Product Image
Key Specifications
View Full SpecificationsSupported Parameters
Measured Parameters
Output Options
Power Options
Environmental
Resources
Product Datasheet
Specifications, configurations, and deployment ratings for project planning.
Request PDFIntegration Guide
Wiring, protocol notes, and mounting guidance for platform integrators.
Email SupportCalibration & Maintenance
Recommended verification, calibration, and servicing workflow.
Get ChecklistAccessories
Calibration Solutions
Standard buffer and reference solutions for routine calibration.
Cable & Junction Box
Submersible cabling and weatherproof junction options for field wiring.
Mounting Hardware
Probe guards, flow cells, and pole or buoy mounting adapters.
Support
Wiring and protocol assistance for RS485 / Modbus RTU integration.
Integration support for sondes, buoys, fixed stations, and process panels.
Calibration, field-verification, and long-term maintenance planning.
Application support for freshwater, brackish, marine, and industrial deployments.
Related Water Quality Sensors
Browse All Water Quality
Ready to add reliable water-quality data?
Let's match the right probe, calibration plan, and integration to your monitoring program.
Trusted by Experts
Used by researchers, engineers, and operators worldwide.
Built for Water
Designed for reliable freshwater, brackish, and marine service.
End-to-End Solutions
Sensors, platforms, systems, and software working together.
Global Support
Local teams and partners ready to help deploy and scale.