Coastal water with research buoy
OCEAN MONITORING DOMAIN

Water Quality

Continuous physical and chemical sensing to protect marine ecosystems, support compliance and inform smarter water management.

Parameters We Monitor

A complete water quality stack — from basic physico-chemistry to nutrients and biological indicators.

Physical

Temperature °C Conductivity mS/cm Salinity ppt Turbidity NTU TSS mg/L

Chemical

pH pH Dissolved Oxygen mg/L ORP mV Chlorophyll μg/L Blue-Green Algae RFU Ammonia mg/L Nitrate mg/L COD mg/L

Multi-parameter

Water Quality Sonde configurable

Portable

Handheld Multiparameter configurable

Why Monitor Water Quality?

What each parameter tells you about the system you're protecting.

Dissolved Oxygen

Controls fish survival and ecosystem health.

Low DO triggers fish kills and signals stressed water bodies. Continuous DO is the single most important indicator for aquaculture and coastal management.

pH

Indicates water chemistry stability.

pH shifts affect nutrient availability, metal toxicity and organism health. Stable pH is a baseline for ecological balance and treatment process control.

Chlorophyll & Algae

Measures algae activity and bloom risk.

Chlorophyll-a and blue-green algae fluorescence give early warning of eutrophication and harmful algal blooms before they impact water supply or fisheries.

Ammonia & Nitrate

Early indicators of pollution.

Nitrogen species flag agricultural runoff, sewage discharge and industrial loading. Real-time monitoring enables source attribution and rapid response.

Sensor Series

Choose the right form factor — fixed-station industrial or portable handheld.

AquaSense water quality sensors
AquaSense

In-situ water quality sensors

Industrial-grade physical and chemical sensors and multi-parameter sondes engineered for unattended deployment in coastal, estuarine and offshore environments.

AquaGo portable handheld meter
AquaGo

Portable handheld meters

Field-ready handheld multi-parameter meters for spot checks, surveys and rapid water quality assessments.

System Architecture

How sensor, platform, telemetry and cloud fit together for water quality monitoring.

  1. AquaSense water quality sensor
    AquaSense
    In-situ sensors
  2. Data buoy platform
    OceanBuoy
    Buoy or shore platform
  3. CoreLink edge gateway
    CoreLink
    Telemetry & edge compute
  4. ZenoCloud
    Data management & AI
  5. Zenocean dashboard software
    Dashboard
    Alerts & insights

Product Reference

Map every parameter to its sensor SKU.

Category Parameter Unit Series Example Product
Physical Temperature °C AquaSense AquaSense-T
Physical Conductivity mS/cm AquaSense AquaSense-EC
Physical Salinity ppt AquaSense AquaSense-SAL
Physical Turbidity NTU AquaSense AquaSense-TUR
Physical TSS mg/L AquaSense AquaSense-TSS
Chemical pH pH AquaSense AquaSense-PH
Chemical Dissolved Oxygen mg/L AquaSense AquaSense-DO
Chemical ORP mV AquaSense AquaSense-ORP
Chemical Chlorophyll μg/L AquaSense AquaSense-CHL
Chemical Blue-Green Algae RFU AquaSense AquaSense-BGA
Chemical Ammonia mg/L AquaSense AquaSense-NH4
Chemical Nitrate mg/L AquaSense AquaSense-NO3
Chemical COD mg/L AquaSense AquaSense-COD
Multi-parameter Water Quality Sonde configurable AquaSense AquaSense-Multi
Portable Handheld Multiparameter configurable AquaGo AquaGo-Multi

Applications

Where Zenocean water quality systems deliver value — with the parameters and products that power each use case.

Floating aquaculture cages at sea

Aquaculture Monitoring

Protect fish stock health and feed efficiency with continuous water quality on every cage.

Monitor
Dissolved OxygenpHTemperatureSalinity
Products
AquaSenseOceanBuoyCoreLink
Coastal water and shoreline

Coastal & Estuarine Water Quality

Track nutrient loading, turbidity and biological activity across coastal observation networks.

Monitor
TurbidityChlorophyllAmmoniaNitrate
Products
AquaSenseOceanBuoyZenoCloud
Surface water with algal coloration

Harmful Algal Bloom Early Warning

Detect bloom precursors days before visual onset using chlorophyll, BGA and DO trends.

Monitor
ChlorophyllBlue-Green AlgaeDissolved Oxygen
Products
AquaSenseZenoCloud
BUILD WITH ZENOCEAN

Let's build your
ocean observation system

Tell us about your project. Our engineering team will design the right solution for your environment, deployment and data goals.

1000+
Deployments
60+
Countries & Regions
20+
Years of Experience
7/24
Global Support