Overview
The third-generation product introduced a pen-shaped six-parameter workflow and Bluetooth mini-program display. This product has been discontinued.
Discontinued
Personal & Home Water Testing PensDiscontinued
Water Detective 3
Personal/Home Portable Water Quality Testing Pen | water quality tester
A portable rapid testing tool for tap water, purified water, bottled water, travel water, and aquarium water, designed for personal screening and comparison, not a substitute for regulatory laboratory testing.
This product has been discontinued.
Original manufacturer · Factory-direct supply
Questions go straight to the source
Ask about parameters, interfaces, calibration, versions, customization or volume supply. The answer does not need to pass through layers of resellers.
- In-house R&DOptics, sensor-interface electronics, algorithms, firmware and mechanical integration are developed as one product system.
- Production capabilityFrom prototype and pilot build to assembly, functional testing and volume delivery, production follows the product team’s technical definition.
- Quality traceabilityModel, specification, firmware or hardware version and test requirements remain connected, reducing ambiguity between sales claims and delivered goods.
Overview
Why this product
A portable rapid testing tool for tap water, purified water, bottled water, travel water, and aquarium water, designed for personal screening and comparison, not a substitute for regulatory laboratory testing.
The third-generation product introduced a pen-shaped six-parameter workflow and Bluetooth mini-program display. This product has been discontinued.
Pen-shaped six-parameter detector, connects via Bluetooth to a mini-program, suitable for compact on-site testing workflows. A portable multi-spectral water quality testing product for domestic water, on-site screening, water purification services, and aquaculture testing.
- ✓TOC · COD · TDS · UV254 · EC · Temperature
- ✓Portable Rapid Testing Procedure
- ✓Operable without large laboratory equipment
- ✓Suitable for home use, service personnel, and field screening
Verified technical detail
Information to provide for selection · Calibration, validation and maintenance
A portable rapid testing tool for tap water, purified water, bottled water, travel water, and aquarium water, designed for personal screening and comparison, not a substitute for regulatory laboratory testing.
Interface / Supply
— · AAA battery
Measurement Range / Accuracy
TOC/COD 0.1–20 mg/L; TDS 1–2000 ppm; EC 1–4000 µS/cm; UV254 0.0001–1 AU/cm; 0–100 °C · —
Installation and commissioning
For replacement projects, evaluate Water Detective 4 instead of designing with this model.
Verified technical detail
Engineering and integration
The official Chinese document is currently shared by every language version.
Engineering and integration
- 01
Six parameters: TOC, COD, TDS, UV254, conductivity, and temperature.
- 01
Bluetooth BLE 5.0 connection and mini-program result display.
- 01
Compact pen-shaped body, probe protection rating IP66.
- 01
Historical model only; no new orders accepted.
Installation and commissioning
- ✓
For replacement projects, evaluate Water Detective 4 instead of designing with this model.
- ✓
Retain legacy operation and calibration records for installed equipment.
- ✓
Confirm spare parts availability before planning on-site maintenance.
Applications
Typical applications
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.
Surface Water Monitoring
Compact, reagent-free sensing for rivers, lakes, reservoirs and distributed environmental networks.
Aquaculture
Track changes in water conditions continuously to support healthier stock and more responsive operations.
Drinking Water & Purification
Integrated TDS and conductivity components for dispensers, purifiers, filter-life estimation and quality indication.
Typical applications are reference cases, not capability limits.
Propose a new application →The applications above are common examples. If this measurement principle may solve a different problem in your field, we welcome a feasibility discussion.
Technology
From selection to reliable data
- 01
Define the measurement objective and expected range.
- 02
Match the sensor, probe or analyzer to the real sample matrix.
- 03
Complete mechanical, electrical and communication integration.
- 04
Validate results with reference samples before routine operation.
Engineered for dependable integration
Integration and installation checklist
- ✓Target parameters and expected concentration range
- ✓Water matrix, fouling risk and installation method
- ✓Communication interface and sampling frequency
- ✓Calibration, validation and maintenance strategy
- ✓Information to provide for selection: Water Detective 3 · Personal & Home Water Testing Pens
Calibration, validation and maintenance
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 →FAQ
Frequently asked questions
Is this product ready to use in every water matrix?
The product platform is defined, but range, calibration and installation must still be confirmed against the actual water matrix and project objective.
What should be checked before integration?
Confirm power, interface, cable length, enclosure, sampling frequency, probe position and the host system data format.
How should measurement quality be verified?
Compare representative samples with an agreed reference method and document the acceptance criteria before commissioning.
Can datasheets, protocol information and engineering support be supplied?
Yes. Ask for the current ordering specification and describe your application so the correct materials can be supplied.
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