Ohaus Starter 300 Portable pH Meters

OhausSKU: 30219114


Includes GST

Available to Order


Convenient Portable pH Meter for Wherever Your Work Takes You

  • Automatic and manual temperature compensation ensures accurate readings while a 30 measurement library stores data for future reference.
  • The auto buffer recognition stores calibration data and helps to avoid errors during the calibration process.
  • With a meter stand, wrist strap for secure field use and IP54 housing, Starter 300 is durable and prepared for versatile use.

The ST300-G is Supplied with ST300 Meter, 4 x AAA batteries, electrode clip, IP54 seal components, wrist strap, ST320 pH electrode, portable bag and pH buffer set (4.01, 7.01, 10.01).


pH, oxidation-reduction potential (ORP) measurement, temperature 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 0.00 – 14.00 pH;  -1999 – 1999 mV;  0 – 100 °C
Accuracy ±0.01 pH;  ±1 mV;  ±0.5 °C
Measurement Resolution 0.01 pH;  1 mV;  0.1 °C
Display LCD
Electrode ST320 (Included)
Accuracy ± (mV) 1 mV
Accuracy ± (Temperature) 0.5 °C
Battery Life 500 Hours with Disposable Batteries
Calibration 3 Point
Dimensions 33 mm x 170 mm x 90 mm (HxLxW)
In-use cover No
Measurement Range (Temperature) 0 °C – 100 °C
Measurement Range -1,999 mV – 1,999 mV
Net Weight 0.16 kg
Parameter pH / ORP
pH accuracy (±) 0.01
pH measuring range 0 – 14
pH resolution 0.01
Power 4 AAA Batteries (Included)
Resolution (Voltage) 1 mV
Temperature Compensation Automatic
Temperature Resolution 0.1 °C
Temperature Sensor 30 KΩ NTC
Working Environment 5°C – 40°C, 80%RH, non-condensing



Product Brochure

Instruction Manual

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