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Do you need help with inaccurate and inconsistent measurements in your laboratory water analysis?

The Ohaus 120mm x 12mm Starter Electrodes ST272, powered by the renowned Ohaus precision, are here to elevate your accuracy in pH and other critical measurements. Perfect for various applications from pH balancing to conductivity and more, these electrodes ensure you get precise and dependable results every time.

Key Benefits:

  • Wide Measurement Range: Effectively measure pH levels from 2.00 to 12.00, suitable for various laboratory and field applications.
  • Integrated Temperature Sensor: Features an automatic temperature compensation that guarantees measurement accuracy across varying temperatures.
  • Universal Compatibility: Designed to fit perfectly in Ohaus bench meters and portable meter clips, enhancing versatility and ease of use.
  • Robust Construction: Durable electrodes made from high-quality materials like metal, glass, or plastic shafts to withstand daily laboratory use.
  • Multi-functional: Not just for pH measurements; also capable of reference, ORP, conductivity, dissolved oxygen (DO), and temperature measurements.
  • 5-Year Warranty: Enjoy peace of mind and long-term reliability with a comprehensive 5-year warranty on your investment.

When you choose Ohaus Starter Electrodes, you're not just purchasing a tool but investing in reliability and precision that enhances your laboratory's capabilities. Feel the confidence that comes with accurate data and consistent performance, knowing that your water analysis is backed by the quality of Liberty Scales' laboratory instruments. With these starter electrodes, step into a world of meticulous accuracy and streamlined laboratory processes.

Reach out to our dedicated team for further information and personalized assistance. Call us at (661) 888-1919 or email us at We're here to help you every step of the way!


  • Electrode Type: pH

  • Measurement Range: 2.00 – 12.00 pH

  • Cable: 1 m

  • Shaft Material: Plastic

  • Dimensions: 6.3 in x 0.59 in (160 mm x 15 mm) (LxØ)

  • Net Weight: 3.35 oz (95 g)

  • pH measuring range: 2 – 12

  • Temperature Range: 0 °C – 50 °C

  • Temperature Sensor: No

  • Working Environment: 50°F – 104°F, 85%RH, non-condensing (10°C – 40°C, 85% RH, non-condensing)
  • Free Shipping: Available across 48 continental USA. Extra charges may apply for residential, farm, or rural areas.
  • Express Shipping: Overnight and faster shipping options available at additional costs. Quotes obtainable via email.
  • Delivery Time: Typically 5 to 7 business days, varying by location and external conditions.
  • Tracking Information: Provided via email upon shipment. Accessible through account login. Additional information available upon request.
  • Return Policy: 15-day return period for unused, original condition products. A 25% restocking fee applies. Buyer covers original and return shipping costs.
  • Customer Support: Contact at (661) 888-1919 or for queries or concerns about shipping.