OHAUS Pen pH Meters

OHAUS Pen Meter ST10

$47.95
115 points (Avail: 0)
14 pH, +/- 1.1 pH
In Stock
Item #: IND-300

OHAUS Pen Meter ST20

$78.95
190 points (Avail: 0)
14 pH, 0.0-99.0 oC, +/- 0.1 pH
In Stock
Item #: IND-305

OHAUS Pen Meter ST20S

$81.95
197 points (Avail: 0)
0.0-80.0 ppt; 0.0-99.0 oC, +/- 0.1 ppt
In Stock
Item #: IND-310

OHAUS Pen Meter ST20R

$123.95
298 points (Avail: 0)
-1000–1000 mV, 0.0-99.0 oC, +/- 1mv
In Stock
Item #: IND-315

OHAUS Pen Meter ST20D

$295.95
711 points (Avail: 0)
0.0-80.0 ppt, +/- 0.1 mg/L
In Stock
Item #: IND-320
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  • Description
  • Product Reviews
After more than a century of perfecting the art of measurement through our durable weighing products, 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.

  • Starter pen meters provide what should be expected of a small, economical pen meter: simple, fast, straightforward, no-frills operation time and time again.
  • With durable ABS housing, a protective sensor cap, and automatic shutdown feature that preserves battery life, Starter pen meters can endure consistent use in rugged environments.
  • Equipped with a wrist strap that helps prevent unintentional dropping, Starter pen meters are constructed with an IP67 waterproof design that can prevent water damage when dropped in to liquid.
  • Accurate Electrochemistry Measurement At Your Fingertips.
  • Liquid crystal display (LCD) display with secondary information line (on select models).
  • Easily replaceable electrodes, automatic shut off feature after 6 minutes of non-use.
  • Four 1.5V batteries (included).
  • Working Environment: 50oF – 104oF, 85% RH, non-condensing (10oC – 40oC, 85% RH, non-condensing).
  • 7.28 in x 1.5 in x 1.77 in (185 mm x 38 mm x 45 mm)

Model Measurement Range Resolution Calibration Price
IND-300 0.00–14 pH 0.1 pH NA

$40.95

IND-305 0.00–14 pH; 0.0–99.0 oC 0.01 pH 3 Point

$72.95

IND-310 0.0–80.0 ppt; 0.0–99.0 oC 0.1 pH 3 Point

$77.95

IND-315 -1000–1000 mV; 0.0–99.0 oC 1 mV NA

$89.95

IND-320 0.0–80.0 ppt 0.1 mg/L 3 Point

$315.95

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