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Are you struggling with inconsistent and inaccurate pH readings in your laboratory or field studies?

The Ohaus 120mm x 12mm Starter Electrodes ST310 are here to transform your water analysis process. These electrodes, engineered for precision, offer a wide measurement range of 0.00 – 14.00 pH, ensuring your results are both accurate and reliable. Ideal for a variety of applications including pH, oxidation-reduction potential (ORP), conductivity, dissolved oxygen (DO), and temperature measurements, these electrodes are your solution to the complexities of water analysis.

Key Benefits:

  • Wide pH Range: Capable of measuring from 0.00 to 14.00 pH, providing flexibility across various test conditions.
  • Integrated Temperature Sensor: Features automatic temperature compensation, guaranteeing precise measurements regardless of environmental changes.
  • Durable Construction: Crafted with sturdy metal, glass, or plastic shafts, these electrodes are built to withstand daily use in lab and field environments.
  • Universal Compatibility: Perfectly fits the electrode holders on Ohaus bench meters and clips on all Ohaus portable meters, enhancing versatility and ease of use.
  • Comprehensive Application: Suitable for a broad spectrum of laboratory and field applications, enhancing utility and value.
  • 5-Year Warranty: Enjoy peace of mind and long-term reliability with a comprehensive 5-year warranty on your investment.

Experience a new confidence level in your water analysis with the Ohaus Starter Electrodes. As part of the trusted Ohaus Starter Series, these electrodes are backed by a legacy of precision and durability, ensuring that each measurement contributes to outstandingly accurate and repeatable results. By choosing these electrodes, you're not just making a purchase, you're investing in the assurance of quality and consistency in your laboratory and environmental studies. Feel empowered with the right tools—feel confident with Ohaus Starter Electrodes.

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: 0.00 – 14.00 pH

  • Cable: 1.1 m

  • Shaft Material: Plastic

  • Dimensions: 4.7 in x 0.47 in (120 mm x 12 mm) (LxØ)

  • Measurement Range (Temperature): 0 °C – 80 °C

  • Net Weight: 2.8 oz (80 g)

  • pH measuring range: 0 – 14

  • Temperature Range: 0 °C – 80 °C

  • Temperature Sensor: 30 kΩ

  • 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.