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DTK Water

SD10 pH

The SD10 pH Pocket Tester provides a fast, reliable and convenient solution for accurate pH measurement in the field. Designed for routine water quality testing, it combines precision measurement with a compact, waterproof design, making it ideal for applications including industrial water systems, swimming pools, water treatment and general pH monitoring.

With its robust IP67-rated waterproof housing, the SD10 is built for everyday use in demanding environments. The intuitive design makes testing simple, with a clear colour backlit display, easy-to-understand symbols and visual indicators that guide users through measurement, calibration and alarm conditions.


The transparent protective lid provides additional protection during storage and transport while also acting as a stable stand during use. It also allows easy access for electrode maintenance, helping to extend the working life and performance of the tester.


Powered by energy-efficient LED technology and 4 x AAA batteries, the SD10 provides an impressive battery life of over 2000 hours. Its compact design, included lanyard and integrated clip allow it to be comfortably carried and used wherever testing is required.

Key Features

  • Accurate pH measurement from 0 – 14
  • Waterproof IP67 housing for reliable field use
  • Compact and portable design
  • Transparent lid for protection, maintenance and stable positioning
  • Three-colour backlit LCD display:
    • Blue: Measurement mode
    • Green: Calibration mode
    • Red: Alarm indication
  • Automatic temperature compensation
  • Auto-hold and stability indicator functions
  • Automatic buffer recognition for simple calibration
  • Up to 2000+ hours battery life
  • Calibration indicator and adjustable alarm limits
  • CE compliant

Applications

  • Boiler Water
  • Cooling Water
  • Drinking Water Treatment
  • Pool Water Control
  • Wastewater Treatment

Technical Data

  • Measurement Parameters:
    • pH: 0 – 14
    • pH (mV): -1000 – 1000
    • Temperature: 0 – 50 °C
  • Accuracy:
    • pH: ±0.01 (±1 digit)
    • pH (mV): ±0.2% FS
    • Temperature: ±0.5 °C
  • Resolution:
    • pH: 0.01
    • pH (mV): 1
    • Temperature: 0.1 °C
  • Calibration Points: 1–3
  • Temperature Compensation: Automatic
  • Calibration Indicator: Yes
  • Stability Indicator: Yes
  • Auto-Hold Function: Yes
  • Alarm Limits: Yes
  • Display: 3-colour backlit LCD
  • Power Supply: 4 x AAA batteries
  • Battery Life: >2000 hours
  • Operating Conditions: 0 – 60 °C / 0 – 80% relative humidity (non-condensing)
  • IP Rating: IP67
  • Compliance: CE
  • Dimensions: 40 x 40 x 180 mm
  • Weight: 151 g

   Order Code   Description 
720010
SD10 pH Pocket Tester
720015SD10 pH Replacement Electrode 

SD Series Leaflet