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OHAUS precision is now available in a line of pen meters that provide accurate measurement of pH, oxidation-reduction potential (ORP), conductivity, salinity, and total dissolved solids (TDS). Starter pen meters are the economical option when you are simply looking for meters that will provide accurate measurement without restriction.

Part NumberModelMeter TypeMeasurement RangeAccuracy
OH-30073970ST10pH0.00 - 14 pH+0.1 pH
OH-30073972ST10C-AConductivity0.00 - 199.9 μs/cm+2.5% FS
OH-30073973ST10C-BConductivity0.00 -1999 μs/cm+2.5% FS
OH-30073974ST10C-CConductivity0.00 - 19.99 μs/cm+2.5% FS
OH-30073984ST10RORP-1000 - 1000 mV2mV
OH-30073982ST10SSalinity0.0 - 10.0 ppt+2.5% FS
OH-30073978ST10T-ATDS0.0 - 100.0 mg/L+2.5% FS
OH-30073979ST10T-BTDS0.0 - 1000 mg/L+10mm
OH-30073971ST20pH0.0 - 99.0 °C ; 0.00 - 14 pH+0.05 pH / +0.5 °C
OH-30073975ST20C-AConductivity0.00 - 199.9 μs/cm ; 0.0 - 99.0 °C+1.5% / +0.5% °C
OH-30073976ST20C-BConductivity0.0 - 99.0 °C ; 0 - 1999 μs/cm+0.1 pH
OH-30073977ST20C-CConductivity0.0 - 99.0 °C ; 0.00 - 19.99 ms/cm+1.5% / +0.5 °C
OH-30073986ST20DDissolved Oxygen0.0 -19.9 mg/L+0.5% °C
OH-30393199ST20M-BTDS ; Conductivity ; pH0.0 - 1000 mg/L ; 0.0 - 99.0 °C ; 0.00 - 14 pH ; 0 – 1999 μs/cm+2.0 % F.S.;+ 0.05 pH / + 0.5 °C
OH-30393200ST20M-CConductivity ; pH ; Salinity0.00 - 10.0 ppt ; 0.0 - 99.0 °C ; 0.00 -14 pH ; 19.99 ms/cm+2.0 % F.S.;+ 0.05 pH / + 0.5 °C
OH-30073985ST20RORP-1000 - 1000mV ; 0.0 - 99.0 °C+ 2 mV / + 0.5 °C
OH-30073983ST20SSalinity0.00 -80.0 ppt ; 0.0 - 99.0 °C+ 1.5% / + 0.5 °C
OH-30073980ST20T-ATDS0.0 – 100.0 mg/L;0.0 – 99.0 °C+ 1.5% / + 0.5 °C
OH-30073981ST20T-BTDS0.0 – 1000 mg/L;0.0 – 99.0 °C+ 1.5% / + 0.5 °C
Model Item Quantity Unit Price Line Total
ST10 - Ohaus Starter™ Pen Meters ST10 - Ohaus Starter™ Pen Meters
$ 0.00
ST10C-A - Ohaus Starter™ Pen Meters ST10C-A - Ohaus Starter™ Pen Meters
$ 0.00
ST10C-B - Ohaus Starter™ Pen Meters ST10C-B - Ohaus Starter™ Pen Meters
$ 0.00
ST10C-C - Ohaus Starter™ Pen Meters ST10C-C - Ohaus Starter™ Pen Meters
$ 0.00
ST10R - Ohaus Starter™ Pen Meters ST10R - Ohaus Starter™ Pen Meters
$ 0.00
ST10S - Ohaus Starter™ Pen Meters ST10S - Ohaus Starter™ Pen Meters
$ 0.00
ST10T-A - Ohaus Starter™ Pen Meters ST10T-A - Ohaus Starter™ Pen Meters
$ 0.00
ST10T-B - Ohaus Starter™ Pen Meters ST10T-B - Ohaus Starter™ Pen Meters
$ 0.00
ST20 - Ohaus Starter™ Pen Meters ST20 - Ohaus Starter™ Pen Meters
$ 0.00
ST20C-A - Ohaus Starter™ Pen Meters ST20C-A - Ohaus Starter™ Pen Meters
$ 0.00
ST20C-B - Ohaus Starter™ Pen Meters ST20C-B - Ohaus Starter™ Pen Meters
$ 0.00
ST20C-C - Ohaus Starter™ Pen Meters ST20C-C - Ohaus Starter™ Pen Meters
$ 0.00
ST20D - Ohaus Starter™ Pen Meters ST20D - Ohaus Starter™ Pen Meters
$ 0.00
ST20M-B - Ohaus Starter™ Pen Meters ST20M-B - Ohaus Starter™ Pen Meters
$ 0.00
ST20M-C - Ohaus Starter™ Pen Meters ST20M-C - Ohaus Starter™ Pen Meters
$ 0.00
ST20R - Ohaus Starter™ Pen Meters ST20R - Ohaus Starter™ Pen Meters
$ 0.00
ST20S - Ohaus Starter™ Pen Meters ST20S - Ohaus Starter™ Pen Meters
$ 0.00
ST20T-A - Ohaus Starter™ Pen Meters ST20T-A - Ohaus Starter™ Pen Meters
$ 0.00
ST20T-B - Ohaus Starter™ Pen Meters ST20T-B - Ohaus Starter™ Pen Meters
$ 0.00
$ 0.00

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