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Ohaus 300 Series Starter Test Meters

30031655 83033961 30031656 83033964 83033962
Versatile and portable meters for wherever your lessons take you.

  • Intuitive Software and a well-organized display work in tandem to make operating the Starter Series a simple and straightforward task
  • Starter portable products fit comfortably in the palm of your hand
  • Each comes equipped with a retractable built-in stand that can be used to prop up the meter on a flat surface
  • Starter tracks the accuracy of the calibration process right on the display so users can measure with peace-of-mind, knowing results will be highly precise
When it’s time to take students into the field, the OHAUS Starter Series of Portable Meters is ready to assist. With an IP54 protection rating shielding the meter from water and/or dust damage, a minimum of 250 hours of operation time (over 500 hours on pH models) and 30 sets of data memory, OHAUS portable meters are the perfect (outdoor) lab partner for your students. When the weather doesn’t cooperate or you just need additional versatility, the Starter Series of Portable Meters still has you covered. With their built-in lab table stand and the same intuitive software featured in the bench top models, the OHAUS portable meters are just as effective in your classroom or science lab as they are in the field.

Starter 300 pH Meter:
Starter 300 Marries portability with precise pH measurement. ORP, temperature and reference electrodes can also be easily connected to provide additional functionality. See Product Resources Tab for Specifications.
Each time the meter is calibrated, icons appear on the display to confirm the accuracy of the calibration process so you can ensure accurate measurement
Auto buffer recognition stores calibration data and helps to avoid erros during the calibration process
Automatic and manual temperature compensation helps ensure accurate readings

Starter 300C Conductivity Meter:
Starter 300C is the reliable and accurate choice for measurement of the conductivity and TDS levels of liquids. With a variety of features that protect the meter from more extreme elements, Starter 300C can be used for a variety of applications. See Product Resources Tab for Specifications.
The 4-pole linear electrode offers a large conductivity range that safeguards itself from polarization and pollution effects
Automatic temperature compensation with adjustable temperature coefficient

Starter 300D Dissolved Oxygen Meter:
Starter 300D provides accurate and reliable dissolved oxygen measurement that is critical to aquatic life and water quality. See Product Resources Tab for Specifications
Each time the meter is calibrated, icons appear on the display to confirm the accuracy of the calibration process so you can ensure accurate measurement
Push-button toggling between ppm, mg/L and percentage
The galvanic electrode can be used immediately after being powered on without the wait time typically associated with dissolved oxygen meter



Item # Description Unit Availability Price Quantity
470020-398 ST300: 300 Portable Meter and 3-in-1 Plastic Gel pH Electrode
Each Retrieving Restricted
470020-400 ST300-B: 300 Portable pH Meter
Each Retrieving Restricted
470020-404 ST300C: 300C Meter with 4-Ring Conductivity Electrode
Each Retrieving Restricted
470020-058 ST300D: 300 Series Portable Meter with Galvanic DO Electrode and Temperature Electrode, IP54 Set, electrode clip, wrist strap & batteries
Each Retrieving Restricted
470020-060 ST300D-B: Basic 300D Portable DO Meter
Each Retrieving Restricted
restricted This product is marked as restricted and can only be purchased by approved Shipping Accounts. To apply for a shipping account number, click here. If you need further assistance, call Customer Service at 800-387-9393 or email


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