Starter Pen Meters

Compact Design for Fast, Convenient Electrochemistry Measurement At Your Fingertips

ST20M-B

Meter Type	TDS;Conductivity;pH
Measurement Range	0.0 – 1000 mg/L;0.0 – 99.0 °C;0.00 – 14 pH;0 – 1999 μs/cm
Accuracy	±2.0 % F.S.;± 0.05 pH / ± 0.5 °C
Item Number:	30393199

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Overview
Specs
Accessories
Documents

Overview

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.

Applications

pH, oxidation-reduction potential (ORP), conductivity, dissolved oxygen (DO), salinity, total dissolved solids (TDS), temperature measurement

Display

Liquid crystal display (LCD) display with secondary information line (on select models)

Operation

4 1.5V batteries (included)

Communication

N/A

Construction

ABS Housing

Design Features

Easily replaceable electrodes, automatic shut off feature

Specifications

Meter Type	TDS;Conductivity;pH
Measurement Range	0.0 – 1000 mg/L;0.0 – 99.0 °C;0.00 – 14 pH;0 – 1999 μs/cm
Accuracy	±2.0 % F.S.;± 0.05 pH / ± 0.5 °C
Measurement Resolution	1μs/cm;0.01 pH
Display	LCD
ATC	Yes
Temperature compensation	Not Applicable
Automatic Shutdown	Yes, After 6 minutes of non-use
Battery Life	100 Hours with Disposable Batteries
Calibration	3 Point
Conductivity accuracy (±)	2 %
Conductivity measuring range	0 – 1999 µS/cm
Dimensions	1.5 in x 7.28 in x 1.77 in (38 mm x 185 mm x 45 mm) (LxHxW)
Net Weight	3.88 oz (110 g)
Number of Buttons	3
pH accuracy (±)	0.05
pH measuring range	0 – 14
Power	4 AG13 Batteries (Included)
Protection Rating	IP67
Temperature Display	Yes
Temperature Sensor	50 KΩ NTC
Working Environment	50°F – 104°F, 85%RH, non-condensing (10°C – 40°C, 85% RH, non-condensing)
Wrist Strap	Yes