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DTK Water

pH1

The pH1 pH & Temperature Meter is a compact, waterproof tester designed to deliver fast and accurate pH measurements wherever testing is required. Ideal for routine water quality monitoring, it provides simultaneous pH and temperature readings in a lightweight, easy-to-use instrument suitable for both field and laboratory applications.

Built for demanding environments, the pH1 features a robust flat electrode design that is highly resistant to damage, making it an excellent choice for engineers, water treatment professionals and maintenance teams carrying out regular testing.

Designed for Everyday Use

Whether you're monitoring boiler water, cooling systems, process water or environmental samples, the pH1 offers dependable performance in a compact handheld format. Its waterproof construction allows the tester to float if dropped into water, providing added reassurance when working around tanks, cooling towers or open water systems.


The clear display shows both pH and temperature simultaneously, allowing users to monitor multiple parameters without switching between screens. Automatic Temperature Compensation (ATC) ensures reliable pH measurements across varying sample temperatures, while the data hold function makes it easy to record readings in the field.

Reliable Performance

The unique flat electrode is designed for durability, providing excellent resistance to accidental knocks and impacts compared with traditional glass electrodes. Lightweight at just 85 g, the pH1 is comfortable to carry throughout the working day and automatically powers off when not in use to maximise battery life.


For increased flexibility, the pH1 can also be used with the optional RE1P probe, enabling the instrument to measure Redox (ORP) in the range of -1000 to +1000 mV.

Key Features

  • Simultaneous pH and temperature measurement
  • Wide pH measuring range from -2.00 to 16.00
  • Temperature range from 0 to 90 °C
  • Robust flat electrode design for improved durability
  • Waterproof housing that floats in water
  • Automatic Temperature Compensation (ATC)
  • Data hold function for easy recording of results
  • Automatic power-off to conserve battery life
  • Lightweight handheld design weighing just 85 g
  • Compatible with the optional RE1P Redox (ORP) probe

Applications

  • Boiler Water
  • Cooling Water
  • Drinking Water Treatment
  • Wastewater Treatment
  • Process Water
  • Environmental Water Monitoring
  • Pool Water Control
  • Industrial Water Systems

Technical Data

  • Measurement Parameters:
    • pH: -2.00 to 16.00
    • Temperature: 0 – 90 °C
  • Accuracy:
    • pH: ±0.01 (±1 digit)
    • Temperature: ±0.2 °C
  • Resolution:
    • pH: 0.01
    • Temperature: 0.1 °C
  • Simultaneous pH and temperature display
  • Automatic Temperature Compensation (ATC)
  • Data hold
  • Automatic power-off
  • Floating waterproof design
  • Optional RE1P probe for Redox (ORP) measurement
  • Dimensions: 40 x 40 x 170 mm
  • Weight: 85 g

   Order Code   Description 
pH1pH/Temperature Meter
pH1PReplacement pH1 probe
 pH1R pH meter with redox probe reading mV
 RE1P Replacement redox probe

Need Sheet