Skip to content

Do you need accurate and reliable water analysis at your fingertips?

Look no further than the Ohaus Starter Pen Meters ST20C-C. Brought to you by Liberty Scales, a leader in laboratory instruments, this compact and economical meter is your ideal partner for fast and precise measurement of conductivity, temperature, and more. Whether in the lab or the field, the Ohaus ST20C-C ensures that your water quality measurements are both accurate and straightforward, without the need for cumbersome equipment.

Key Benefits:

  • Wide Measurement Range: Effortlessly measures conductivity from 0.00 to 19.99 ms/cm and temperature from 0.0 to 99.0 °C, catering to a variety of water analysis needs.
  • High Accuracy: Achieves ± 1.5% accuracy on conductivity measurements and ± 0.5 °C on temperature, ensuring dependable results every time.
  • Durability and Convenience: Features durable IP67 waterproof ABS housing and an automatic shutdown feature to enhance battery life, making it suitable for consistent use in rough, wet environments.
  • Portable and User-Friendly: Compact design with a protective sensor cap and wrist strap makes it easy to carry and use, reducing the risk of accidental drops and damage.
  • No-Hassle Operation: Operates on four 1.5V batteries (included), allowing for immediate use right out of the box without the need for complex setup or maintenance.
  • 5-Year Warranty: Enjoy peace of mind and long-term reliability with a comprehensive 5-year warranty on your investment.

When you choose the Ohaus Starter Pen Meters ST20C-C, you're not just buying a meter but investing in peace of mind. With its precise readings and robust construction, you'll feel confident and assured that your water analysis tasks are handled accurately and efficiently. Experience the satisfaction of quick, accurate measurements every time, and trust in a tool that lets you focus on the results rather than the process. Embrace the reliability of Liberty Scales and enhance your laboratory capabilities today.

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: 0.0 – 99.0 °C; 0.00 – 19.99 ms/cm

  • Accuracy: ± 1.5% / ± 0.5 °C

  • Measurement Resolution: 10 μs/cm

  • Display: LCD

  • ATC: Yes

  • Temperature compensation: Automatic

  • Accuracy ± (Temperature): 0.5 °C

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

  • Battery Life: 200 Hours with Disposable Batteries

  • Calibration: 1 Point

  • Conductivity accuracy (±): 1.5 %

  • Conductivity measuring range: 0.00 – 19.99 mS/cm

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

  • Measurement Range (Temperature): 0 °C – 99 °C

  • Net Weight: 3.88 oz (110 g)

  • Number of Buttons: 3

  • Power: 4 AG13 Batteries (Included)

  • Protection Rating: IP67

  • Temperature Display: Yes

  • Temperature Range: 0 °C – 99 °C

  • Temperature Sensor: 50 KΩ NTC

  • 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.