ST300C Starter 300C Portable Conductivity Meter from Ohaus

Ohaus 83033964

After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in the form of a portable pH meter. This portable meter offers convenience, reliability and durability in one compact design.


Conductivity, total dissolved solids (TDS) measurement


Liquid crystal display (LCD)


4 AAA batteries (included)




ABS housing, wrist strap

Design Features

Automatic and manual temperature compensation, auto buffer recognition, calibration icon


Measurement Range: 00.0 μS/cm – 199.9 mS/cm; 0.1 mg/L – 199.9 g/L (TDS); 0 – 100 °C

Measurement Resolution: 0.01 μS/cm; 0.1 mg/L; 0.1 °C

Display: LCD

Electrode: STCON3 (Included)

Accuracy (Temperature): 0.3 °C

Battery Life: 250 Hours with Disposable Batteries

Calibration: 1 Point

Conductivity accuracy (±): 0.5%

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

Dimensions (HxLxW): 1.38 in x 6.69 in x 3.54 in (35 mm x 170 mm x 90 mm)

In-use cover: No

Measurement Range (Temperature): 0 °C – 100 °C

Net Weight: 0.35 lb (0.16 kg)

Parameter: Conductivity / TDS

Power: 4 AAA (LR03) Batteries (Included)

Resolution Cond. (Variable): 0.01 – 1

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)

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