SWAN

Chematest 42 – High-Precision Photometer for Advanced Water Analysis

When water quality requirements are high and documentation is critical, you need more than a standard handheld tester.

The SWAN Chematest 42 is a high-precision portable photometer designed for advanced water analysis. It delivers accurate and reliable measurement of key parameters such as chlorine, pH, and alkalinity, making it suitable for demanding applications in swimming pools, water treatment, and industrial processes.

With enhanced accuracy and extended functionality, the Chematest 42 supports professional water quality control and detailed documentation.

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High-precision photometric measurement for demanding applications

The Chematest 42 uses advanced photometric analysis to deliver highly accurate and repeatable results.

The instrument is designed for users who require:

  • precise measurement of critical parameters
  • reliable results for documentation and reporting
  • consistent performance across repeated measurements

This makes it well suited for environments where measurement quality and traceability are essential.

Technical overview

Feature Value
Instrument type High-precision portable photometer
Typical parameters Chlorine, pH, alkalinity and related parameters
Measurement principle Photometric analysis with reagents
Data handling Advanced storage and documentation capabilities
Typical application Swimming pools, water treatment, industrial systems

Supports documentation and quality assurance

In many applications, it is not enough to measure – results must also be documented and traceable.

With the Chematest 42, you can:

  • store and manage measurement data
  • ensure consistent testing procedures
  • support internal quality control processes
  • provide reliable documentation when needed

This makes the instrument a strong choice where quality assurance and reporting are part of daily operation.

Ideal for demanding pool and water treatment applications

The Chematest 42 is designed for users who need more advanced measurement capabilities and documentation.

Typical applications include:

  • Public swimming pools with strict documentation requirements
  • Large aquatic facilities and water parks
  • Water treatment plants
  • Industrial water systems
  • Facilities requiring validated or traceable measurements

In these environments, the instrument supports high confidence in measurement results and compliance with operational standards.

SWAN Chematest 42

Why “42”?

The Chematest 42 takes its name from the well-known reference in The Hitchhiker’s Guide to the Galaxy, where 42 is described as the answer to “life, the universe, and everything”.

In this context, the reference reflects that the instrument combines multiple key water quality parameters in one solution, including turbidity.

Compare Chematest models

The Chematest range includes three models designed for different needs. This overview highlights the key features of the Chematest 42, while also showing how it compares with Chematest 30 and 35.

Feature Chematest 30 Chematest 35 Chematest 42
Photometric pH (Phenol Red, 6.5–8) Included Included Included
Chlorine, ClO₂, ozone, bromine, iodine Included Included Included
Cyanuric acid Included Included Included
External electrode connection Included Included
pH electrode incl. temperature (1–13) Standard Standard
Redox / ORP electrode Optional Optional
Conductivity sensor Optional Optional
Turbidity (dual photometer, 0–1000 FNU/NTU) Included

Included Standard feature   Standard Supplied accessory   Optional Available option

All Chematest models include the following features:

Features shared by all Chematest models
IP67 dust and waterproof design
Rechargeable Li-ion battery
DPD reagent method (SWAN Oxycon reagents)
Menu-guided operation – no manual required in the field
Individual factory calibration per unit
Memory for 2,700+ data sets
Protective carrying case with accessories included

If you do not need turbidity measurement, see Chematest 35 for a more streamlined setup, or Chematest 30 for standard photometric measurements.

Key features supporting advanced water analysis

  • High-precision multi-parameter photometer
  • Measurement of chlorine, pH, alkalinity, and additional parameters
  • Enhanced accuracy and repeatability
  • Wide range of pre-programmed measurement methods
  • Advanced data handling and storage capabilities
  • Robust design for field and facility use
  • Intuitive operation despite advanced functionality

These features provide a reliable platform for professional and detailed water quality analysis.

Benefits for your operation

With the Chematest 42 you gain:

  • High-precision manual water analysis
  • Reliable results for documentation and reporting
  • Improved control of critical water quality parameters
  • Confidence in compliance and operational standards
  • A robust and flexible tool for demanding environments

These benefits support accurate, consistent, and well-documented water quality control.

Professional water testing with Norsk Analyse

Norsk Analyse supplies SWAN Chematest instruments for swimming pools, water treatment facilities, and industrial applications across Scandinavia.

Our specialists help you with:

  • selecting the right instrument for your requirements
  • implementation and training
  • supply of reagents and accessories
  • service and ongoing support

This ensures reliable, accurate, and well-documented water testing.

These products are used within these applications

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