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Starter Pen Meters
Compact Design for Fast, Convenient Electrochemistry Measurement At Your Fingertips

ST20R

Measurement Range -1000 – 1000 mV;0.0 – 99.0 °C
Measurement Resolution 1 mV
Calibration NA
Item Number: 30073985
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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
Measurement Range -1000 – 1000 mV;0.0 – 99.0 °C
Measurement Resolution 1 mV
Calibration NA
Temperature compensation Automatic
Display LCD
Working Environment 50°F – 104°F, 85%RH, non-condensing (10°C – 40°C, 85% RH, non-condensing)
Net Weight 3.88 oz (110 g)
Meter Type ORP
ATC Yes
Temperature Display Yes
Dimensions 1.5 in x 7.28 in x 1.77 in (38 mm x 185 mm x 45 mm) (LxHxW)
Battery Life 200 Hours with Disposable Batteries
Protection Rating IP67
Power 4 AG13 Batteries (Included)
Wrist Strap Yes
Number of Buttons 2
Automatic Shutdown Yes, After 6 minutes of non-use
Accuracy ± 2 mV / ± 0.5 °C
Width (Shipping) 6.3 cm
Height (Shipping) 5 cm
Length (Shipping) 22.3 cm
Gross Weight (Shipping) 0.25 kg
Accessories

Item Number

30088021

Description

Pen Electrode, ST20R

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Item Number

30059256

Description

pH electrode protection solution(3M KCl)

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