Portable Multi-Item Water Quality Meter, Up to 9 Parameters to 100 m Depth

The Yamato WQC40-0-1B is a portable, high-performance multi-parameter water quality meter built around a 45 mm-diameter standard sensor module. It measures up to 9 items simultaneously and continuously, pH, electrical conductivity, turbidity, temperature, salt content, TDS (total dissolved solids), dissolved oxygen, seawater specific gravity, and ions including F⁻, Cl⁻, NO₃⁻, Ca²⁺, K⁺, and NH₄⁺. Rated for continuous measurement at water depths up to 100 m, it carries a 9999-data memory and is Modbus-compatible for integration into monitoring systems.

Key Specifications

Application Profile

Water quality is inherently multivariate, pH, dissolved oxygen, conductivity, turbidity, and ion concentrations all move together, and reading them one probe at a time misses the correlations that tell the real story of a water body. A multi-parameter meter that logs up to 9 items simultaneously captures the full picture in one deployment, which is what makes it useful for environmental monitoring across diverse water environments, rivers, lakes, coastal and seawater, groundwater, and process or effluent water.

The 100 m depth rating and continuous-measurement design open up profiling applications: lowering the 45 mm sensor through a water column to map how oxygen, temperature, and conductivity stratify with depth, central to limnology, oceanography, and reservoir management. The onboard 9999-data memory supports unattended logging, and Modbus compatibility lets the meter feed a larger telemetry or SCADA system. Dissolved oxygen and turbidity in particular are workhorse indicators of aquatic health and pollution events, so a single portable unit covers a lot of field-monitoring ground.

Frequently Asked Questions

How many parameters can the WQC40-0-1B measure at once? Up to 9 items simultaneously and continuously. PH, EC, turbidity, temperature, salt content, TDS, dissolved oxygen, seawater specific gravity, and selected ions. (Some sensor configurations extend the parameter set further.)

Which ions can it measure? F⁻, Cl⁻, NO₃⁻, Ca²⁺, K⁺, and NH₄⁺, depending on sensor configuration.

How deep can it measure? It supports continuous measurement to a water depth of 100 m, enabling depth-profiling of a water column.

How much data can it store, and can it integrate with other systems? It has a 9999-data memory for logging and is Modbus-compatible for integration into telemetry or monitoring systems.

What sensor does it use? A 45 mm-diameter standard sensor module carrying the multi-parameter sensor set.

What is it used for? Environmental monitoring across rivers, lakes, coastal/seawater, groundwater, and process water, including depth-profiling for limnology, oceanography, and reservoir management.

Ordering & Configuration

Confirm at quote: which parameters and ion sensors you need populated, cable/depth length for your deployment, and any Modbus/telemetry integration requirements.

Warranty: Per Yamato standard capital-equipment terms. Confirm coverage at quote.

Add to a quote to lock the sensor configuration and lead time.

Positioning: the WQC40-0-1B is chosen when field water monitoring needs many parameters at once, at depth, up to 9 simultaneous readings on a 45 mm sensor rated to 100 m, with 9999-point logging and Modbus integration. It suits environmental teams profiling water columns or continuously monitoring diverse water bodies from a single portable instrument.