Overview
The second generation moved to a standalone integrated display for drinking-water and purified-water checks. It is discontinued and shown as part of the product-generation history.

Simplified portable analyzer focused on drinking and purified water with direct on-device result display.
Retained to document product-generation history and installed-base experience.
Simplified portable analyzer focused on drinking and purified water with direct on-device result display.
The second generation moved to a standalone integrated display for drinking-water and purified-water checks. It is discontinued and shown as part of the product-generation history.
Simplified portable analyzer focused on drinking and purified water with direct on-device result display.
The second generation moved to a standalone integrated display for drinking-water and purified-water checks. It is discontinued and shown as part of the product-generation history.
— · Portable battery operation
Drinking and purified water · —
Use Water Detective 4 for new projects and purchasing enquiries.
The official Chinese document is currently shared by every language version.
Historical three-indicator workflow: TOC, COD and TDS.
Standalone use without requiring a mobile phone.
Integrated display for direct results.
Historical model only; not offered for new orders.
Use Water Detective 4 for new projects and purchasing enquiries.
Keep this page for identification of existing field units.
Confirm legacy support and accessory availability case by case.
Use the product as part of a complete measurement workflow, not as an isolated component. Confirm the water matrix, target range and decision that the data must support.
Compact, reagent-free sensing for rivers, lakes, reservoirs and distributed environmental networks.
Track changes in water conditions continuously to support healthier stock and more responsive operations.
Integrated TDS and conductivity components for dispensers, purifiers, filter-life estimation and quality indication.
Define the measurement objective and expected range.
Match the sensor, probe or analyzer to the real sample matrix.
Complete mechanical, electrical and communication integration.
Validate results with reference samples before routine operation.
Validate the complete system with representative samples. Record the reference method, temperature and installation conditions. Recheck after cleaning, replacement or process changes, and define a maintenance interval from actual fouling rather than a fixed assumption.
View current Water Detective 4 →The product platform is defined, but range, calibration and installation must still be confirmed against the actual water matrix and project objective.
Confirm power, interface, cable length, enclosure, sampling frequency, probe position and the host system data format.
Compare representative samples with an agreed reference method and document the acceptance criteria before commissioning.
Yes. Ask for the current ordering specification and describe your application so the correct materials can be supplied.

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Latest-generation portable analyzer combining organic and inorganic water indicators in a compact rapid-testing platform.
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Six-parameter Portable Spectral Water Analyzer
Pen-style analyzer measuring six indicators with Bluetooth mini-program access and compact field operation.
Retained to document product-generation history and installed-base experience.
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Portable Five-parameter Water Quality Analyzer
First-generation portable multispectral analyzer for rapid screening of household water and surface-water samples.
Retained to document product-generation history and installed-base experience.
Learn More →Tell us your target parameters, water matrix, interface and annual volume. Our engineering team will recommend a practical configuration.