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Are you looking for a reliable solution to accurately measure pH, conductivity, TDS, salinity, and resistivity in various field conditions?

The Starter 400M pH & Conductivity Portable from Liberty Scales is your go-to device. Crafted to deliver precise water analysis results, this portable meter is an indispensable tool for environmental, agricultural, and industrial professionals. Equipped with robust features and designed for ease of use, this instrument ensures you get accurate data wherever you are.

Key Benefits:

  • Wide Measurement Range: With capabilities ranging from pH 2.00 to 16.00, conductivity up to 199.9 mS/cm, and temperature readings from -5 °C to 110 °C, this meter covers all necessary parameters for comprehensive water testing.
  • High Accuracy and Resolution: Ensures precise readings with an accuracy of ±0.01 pH and high-resolution measurements, providing dependable results for critical analysis.
  • Durable and Waterproof Design: IP67-rated plastic housing, probes, and a protective rubber cover make the Starter 400M exceptionally resilient against harsh field conditions.
  • Extended Battery Life: A rechargeable lithium battery offers up to 40 hours of continuous use and over 300 charge cycles, significantly reducing the frequency of battery replacements.
  • Convenient Data Management: Features a backlit LCD for clear visibility and a built-in micro-USB port for straightforward data transfer, with storage capacity for up to 1000 data items.
  • 5-Year Warranty: Enjoy peace of mind and long-term reliability with a comprehensive 5-year warranty on your investment.

When you choose the Starter 400M pH & Conductivity Portable, you are not just purchasing a meter but equipping yourself with a reliable partner for your fieldwork. Feel confident and empowered knowing that you can effortlessly manage any water analysis task with precision. The peace of mind from having accurate, easy-to-obtain data at your fingertips is invaluable. Transform your field testing experience with Liberty Scales' trusted laboratory instruments – where technology meets practicality.

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!


  • Measurement Range: 0-20 MΩ•cm; -5 °C – 110 °C; -2.00 – 16.00 pH; 00.0 μS/cm – 199.9 mS/cm; 0.1 mg/L – 199.9 g/L (TDS); -1999 – 1999 mV; 0-99.9 psu

  • Accuracy: ± 0.5 % F.S.; ±0.3 °C; ±1 mV; ±0.01 pH

  • Measurement Resolution: 0.01 mg/L; 0.01 psu; 0.1 °C; 0.1 μs/cm; 0.01 pH; 0.01 Ω•cm; 1 mV

  • Display: LCD Backlit Display

  • Accuracy ± (mV): 1 mV

  • Accuracy ± (Temperature): 0.3 °C

  • Battery Life: 40 Hours with Rechargeable Battery

  • Conductivity accuracy (±): 0.5 %

  • Conductivity measuring range: 0.01 μS/cm-199.9 mS/cm

  • Dimensions: 9.05 in x 1.57 in x 3.94 in (230 mm x 40 mm x 100 mm) (LxHxW)

  • Measurement Range (Temperature): -5 °C – 110 °C

  • Measurement Range: -1,999 mV – 1,999 mV

  • Net Weight: 0.77 lb (0.35 kg)

  • pH accuracy (±): 0.01

  • pH measuring range: -2 – 16

  • pH resolution: 0.01

  • Resistivity measuring range: 0 MOhm – 20 MOhm

  • Resistivity resolution: 0.01 MOhm

  • Resolution Cond. (Variable): 0.1 – 199.9

  • Resolution (Voltage): 1 mV

  • Temperature compensation: Automatic

  • Temperature resolution: 0.1 °C

  • Temperature Sensor: 30 KΩ NTC

  • Working Environment: 41°F – 104°F, 80% RH, Non-condensing (5°C – 40°C, 80% 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.