Starter Pen Meters
Accurate Electrochemistry Measurement At Your Fingertips

ST20

Meter Type pH
Measurement Range 0.00 – 14 pH;0.0 – 99.0 °C
Accuracy ± 0.05 pH / ± 0.5 °C
Item Number: 30073971
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 pH
Measurement Range 0.00 – 14 pH;0.0 – 99.0 °C
Accuracy ± 0.05 pH / ± 0.5 °C
Measurement Resolution 0.01 pH
Display LCD
ATC Yes
Temperature Compensation Automatic
Accuracy ± (Temperature) 0.5 °C
Automatic Shutdown Yes, After 6 minutes of non-use
Battery Life 200 Hours with Disposable Batteries
Calibration 3 Point
Dimensions (HxLxW) 7.28 in x 1.5 in x 1.77 in (185 mm x 38 mm x 45 mm)
Measurement Range (Temperature) 0 °C – 99 °C
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 Range 0 °C – 99 °C
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
Accessories

Item Number

30059256

Description

pH electrode protection solution(3M KCl)

Item Number

30087993

Description

Pen Electrode, ST20

Item Number

30100425

Description

Buffer pH4.01 250ml

Item Number

30100427

Description

Buffer pH7.00 250ml

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