Ohaus Starter pH/ORP Pen Meters

OhausSKU: 30073970


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Available to Order


Compact Design for Fast, Convenient Electrochemistry Measurement At Your Fingertips

OHAUS precision meters provide accurate measurement of pH and oxidation-reduction potential (ORP). Starter pen meters are the economical option when you are simply looking for meters that will provide accurate measurement without restriction.



Measurement Range 0.00 – 14 pH;  0.0 – 99.0 °C (ST20/R Only)
Measurement Resolution 0.01 pH
Calibration 3 Point (ST20 Only)
Temperature Compensation Automatic (ST20 Only)
Working Environment 10°C – 40°C, 85%RH, non-condensing
Net Weight 10 g
Accuracy ± (Temperature) 0.5 °C (ST20/R Only)
ATC Yes (ST20/R Only)
Meter Type pH
Temperature Display Yes (ST20/R Only)
Temperature Range 0 °C – 99 °C (ST20/R Only)
Accuracy ± 0.05 pH / ± 0.5 °C (ST20/R Only)
Automatic Shutdown Yes, After 6 minutes of non-use
Battery Life 200 Hours with Disposable Batteries
Dimensions (HxLxW) 185 mm x 38 mm x 45 mm
Number of Buttons 3
Power 4 AG13 Batteries (Included)
Protection Rating IP67
Temperature Sensor 50 KΩ NTC (ST20/R Only)
Wrist Strap Yes



Starter Series Pen Meter Product Brochure

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