SWAN

Chematest 35 – Advanced Photometer for Professional Pool Water Analysis

For operators responsible for water quality in swimming pools and public facilities, reliable and efficient testing is essential.

The SWAN Chematest 35 is an advanced portable multi-parameter photometer designed for professional water analysis. It enables fast and accurate measurement of key parameters such as chlorine, pH, and alkalinity, supporting consistent and compliant pool operation.

With extended functionality and improved usability, the Chematest 35 is well suited for daily operation in swimming pools and water treatment systems.

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Designed for efficient daily testing in swimming pools

The Chematest 35 is built to support frequent and structured water testing routines, making it ideal for pool operators and technicians.

Using photometric measurement with reagents, the instrument allows you to:

  • measure key water quality parameters on site
  • obtain fast and reliable results
  • document measurements for operational control

This helps ensure that pool water remains safe, compliant, and comfortable for users.

Technical overview

Feature Value
Instrument type Portable multi-parameter photometer
Typical parameters Chlorine, pH, alkalinity and related parameters
Measurement principle Photometric analysis with reagents
Operation Pre-programmed methods with guided workflow
Typical application Swimming pools and water treatment

Supports consistent and compliant pool operation

Maintaining correct levels of disinfectants and pH is essential for both user safety and regulatory compliance.

With the Chematest 35, you can:

  • verify chlorine levels for effective disinfection
  • monitor pH to ensure comfort and correct chemical balance
  • track trends and identify deviations early
  • support documentation and reporting requirements

This helps you maintain stable water conditions and avoid operational issues.

Ideal for swimming pools and public water facilities

The Chematest 35 is particularly well suited for environments where water quality must be checked frequently and documented.

Typical applications include:

  • Public swimming pools and aquatic centres
  • Hotel and spa pools
  • Therapy and rehabilitation pools
  • Water parks and recreational facilities
  • General water treatment applications

For these users, the instrument supports consistent daily routines and reliable documentation of water quality.

SWAN Chematest 35

Compare Chematest models

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

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

For a simpler setup focused on standard photometric measurements, see Chematest 30. If you also need turbidity measurement, see Chematest 42.

Key features supporting professional water analysis

  • Portable multi-parameter photometer for daily testing
  • Measurement of free chlorine, total chlorine, pH, alkalinity, and more
  • High measurement accuracy and repeatability
  • Pre-programmed methods for common water quality parameters
  • Intuitive user interface with guided workflows
  • Data storage and easy access to previous measurements
  • Robust design for use in wet and demanding environments

These features make the Chematest 35 a strong tool for structured and reliable water quality control.

Benefits for your operation

With the Chematest 35 you gain:

  • Reliable manual verification of pool water quality
  • Fast and efficient daily testing routines
  • Improved control of chlorine and pH levels
  • Better documentation and traceability of measurements
  • Increased confidence in compliance and water safety

These benefits support safe, efficient, and well-controlled pool operation.

Water testing solutions from Norsk Analyse

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

Our specialists help you with:

  • selecting the right instrument
  • implementation and daily use
  • supply of reagents and accessories
  • service and support

This ensures reliable water testing and consistent water quality control.

These products are used within these applications

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