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Are you struggling with unreliable water quality measurements in your laboratory or field studies?

The Ohaus Starter Pen Meter ST10C-B offers a compact and economical solution, delivering precise conductivity measurements for various applications. Designed to bridge the gap between simplicity and accuracy, this pen meter from Liberty Scales ensures you get reliable data every time without the complexity of traditional laboratory instruments.

  • Wide Measurement Range: Accurately measure conductivity from 0 to 1999 μs/cm with a ±2.5% FS accuracy, ideal for various water analysis needs.
  • Versatile Applications: Perfect for pH, ORP, conductivity, dissolved oxygen, salinity, TDS, and temperature measurements.
  • Durable and Portable: Features robust ABS housing and a compact design that fits right in your pocket, making it ideal for fieldwork.
  • User-Friendly Display: Equipped with an easy-to-read LCD that shows all crucial information at a glance.
  • Long-Lasting Operation: Operates on four 1.5V batteries efficiently and includes an automatic shut-off feature to extend battery life.
  • Waterproof Construction: With an IP67 waterproof rating, this meter withstands rough, wet environments, ensuring durability and reliability.
  • Safety Features: Comes with a protective sensor cap and a wrist strap to prevent accidental drops and damage.
  • 5-Year Warranty: Enjoy peace of mind and long-term reliability with a comprehensive 5-year warranty on your investment.

Experience confidence and peace of mind from knowing your precise and hassle-free water analysis. With the Ohaus Starter Pen Meter ST10C-B, you're not just purchasing a meter but investing in simplicity and accuracy for your critical measurements. Feel empowered with this easy-to-use, dependable tool that lets you focus on your research and applications, knowing that your measurements are accurate and reliable. Dive into your water analysis tasks with Liberty Scales' trusted technology at your fingertips.

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!


  • Meter Type: Conductivity

  • Measurement Range: 0 – 1999 μs/cm

  • Accuracy: ±2.5% FS

  • Measurement Resolution: 1μs/cm

  • Display: LCD

  • ATC: Not Applicable

  • Temperature compensation: Not applicable

  • Automatic Shutdown: Yes, After 6 minutes of non-use

  • Battery Life: 200 Hours with Disposable Batteries

  • Calibration: NA

  • Conductivity accuracy (±): 2.5 %

  • Conductivity measuring range: 0 – 1999 µS/cm

  • Dimensions: 1.5 in x 7.28 in x 1.77 in (38 mm x 185 mm x 45 mm) (LxHxW)

  • Net Weight: 3.88 oz (110 g)

  • Number of Buttons: 1

  • Power: 4 AG13 Batteries (Included)

  • Protection Rating: IP67

  • Temperature Display: Not Applicable

  • Working Environment: 50°F – 104°F, 85%RH, non-condensing (10°C – 40°C, 85% RH, non-condensing)

  • Wrist Strap: Yes
  • 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.