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  2. Pen Meter ST20M-C - 30393200

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LabPro Inc. logo

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888-4-LABPRO (888-452-2776)info@labproinc.com
Ask For a Quote
Login
LabPro Inc. logo
  • All Products
    All Categories
    • Analytical / Chromatography
    • Assembly & Adhesives
    • Autoradiography Film
    • Bags
    • Beakers
    • Bottles
    • Buffers, Standards & Solutions
    • Burners
    • Carboys
    • Carts
    • Chemicals & Reagents
    • Clamps and Clamp Holders
    • Cleaners & Disinfecting
    • Cleanroom and Critical Environment
    • Colony Counters
    Covid-19 Supplies
    • Containers
    • Crucibles
    • Cryogenic Supplies
    • Culture Media
    • Culture Plates & Microplates
    • Cuvettes & Accessories
    • Cylinders
    • Desiccators
    • Dispensers & Burettes
    • Distillation
    • Electrophoresis Reagents
    • Evaporating Dishes
    • ESD & Static Control
    • Film and Paper
    • Filtration

    • Flasks
    • Funnels
    • Furnaces & Ovens
    • Furnishings & Equipment
    • Furnishing, Racks and Storage
    • Gloves
    • Hand Tools
    • Hydrometers
    • Ice Buckets
    • Indicator Paper
    • Inoculating Loops & Spreaders
    • Jointed Lab Glassware
    • Lab Accessories
    • Lab Equipment
    • Lab Utensils

    • Laboratory Seating
    • Labware Sets
    • Lighting & Accessories
    • Magnetic Stir Bars
    • Magnifiers & Accessories
    • Measurement
    • Microscopes & Accessories
    • Mortar & Pestles
    • Packaging, Bags, etc.
    • Pipettes
    • PPE Apparel & Garments
    • Safety Supplies
    • Sample Collection Tools
    • Scalpels
    • Science Education

    • Spill Protection
    • Spot Plates & Streak Plates
    • Stands & Supports
    • Sterilization Indicators
    • Sticky Mats & Rollers
    • Stoppers & Corks
    • Swabs & Applicators
    • Syringes & Needles
    • Thermometers
    • Timers & Controllers
    • Trays & Pans
    • Weights & Masses
    • Western Blot Boxes
    • Wipes

  • Services
    • VMI Program
    • Modular Cleanroom Solutions
    • Lab Pro Calibration Services
    • Hand Tool Reconditioning
    • Punchout Catalogs
    • Vending Machine Solutions
    • Lab Pro Solutions
    • 3D Design Your Lab Workstation
    • New Lab Startups
  • Industries Served
    Industries We Serve
    • Medical Device Manufacturing
    • 3D Printing
    • 503B Outsourcing Facilities
    • Aerospace
    • Agriculture and Cultivation
    • Cleanroom Manufacturing
    • Communications
    • Defense

    • Electronics Manufacturing
    • Government Contractors
    • Industrial Manufacturing
    • Janitorial Supplies & Facilities Maintenance
    • Lab and Healthcare
    • Oil Extraction
    • Pharmacy Compounding
    • Science Education and Teaching Institutions
  • Brands
  • Promotions
  • Information

    • Vendor Managed Inventory Guide
    • Alconox Detergent Selection Guide
    • Botanicals Labware Guide
    • Common Chemical Grades
    • Common Chemical Names
    • Cutters & Hand Tools Selection Guide
    • Documents and Forms
    • Frequently Used Chemicals
    • Glove Selection Guide
    • Los Angeles Lab Supplies

    • Cleanroom PPE & Garment Selection Guide
    • Microscope Guide
    • Nitinol Wire Cutters
    • Orange County Lab Supplies
    • San Diego Lab Supplies
    • Steel Cutting Tweezers
    • Tweezers Selection Guide
    • Where to Buy Deionized Water
    • Wiper Selection Guide
  • Blog
    All Blogs
    • Aerospace
    • Calibration of Lab Equipment
    • Chemicals and Solvents
    • Cleanroom and Critical Environment
    • Electric Battery Labs
    • ESD Safety
    • Lab Consumables
    • Lab Glassware and Glassware Equipment
    • Lab Pro’s Top 5
    • Laboratory Equipment
    • Laboratory Safety & Lab Efficiency
    • Medical Adhesives
    • Medical Device Industry
    • Microscopes, Lighting & Inspection
    • News
    • Our Blog
    • Pipettes
    • PPE and Safety Apparel
    • Press Release
    • Science Education
    • Solar Energy Labs
    • Sustainable & Eco-Conscious Lab
    • Swabs
    • Tweezers and Cutters
    • Ultrasonic Cleaning
    • VMI for Lab Supplies
  • Contact
    • Contact Us
    • Ask For A Quote
    • About Us
    • San Jose Demo Room
    • Locations We Serve
Login
PPE Apparel
  • Cleanroom Coveralls
  • Aprons
  • Disposable lab coats
  • Frocks
  • Gloves
  • Gowns
  • Labcoats
  • Masks
  • Reusable Garments
  • Safety Gloves
  • Safety Goggles
  • Shoe Covers
  • Sleeves
Lab Pro Protective Face Shield Mask - 50% OFF

$4.00

Lab Pro Protective Face Shield Mask - 50% OFF

Lab Pro Masks LP-MaskSurg-W

$1.25

Lab Pro Masks LP-MaskSurg-W

Lab Pro 3ply Earloop Disposable Mask (Non-Surgical) (Box of 50) - 84% OFF

$9.00

Lab Pro 3ply Earloop Disposable Mask (Non-Surgical) (Box of 50) - 84% OFF

Tians Face Mask 3 Layer Spp, Latex Free Elastic Earloop & Clip, Blue-500/Cs - 40578C-RS5

$57.00

Tians Face Mask 3 Layer Spp, Latex Free Elastic Earloop & Clip, Blue-500/Cs - 40578C-RS5

  1. Home
  2. Pen Meter ST20M-C - 30393200

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Vistage
ILDA
Thomasnet
BioLink Depot
SoCalBio
Laboratory Products Association
Vistage
ILDA
Thomasnet
BioLink Depot
Get updates on the latest products, promos, and discounts!

A monthly digest of the latest news, articles, and resources.

Products
  • Covid-19 Supplies
  • Chemicals & Reagents
  • Laboratory Equipment
  • LabClean Wipes
  • Microscopes & Accessories
COMPANY POLICIES
  • Privacy Policy
  • Return Policy
  • Tax & Shipping Policy
  • Terms of Service
Contact
Phone
888-4-LABPRO (888-452-2776)
Email
info@labproinc.com
Northern California:
1290 Anvilwood Ct Sunnyvale, CA 94089
Lab Pro SoCal:
16035 Arrow Hwy Irwindale, CA 91706
LabPro Inc. logo

Improving people's lives through innovative laboratory product since 1979

Paypal ExpressVisaMastercardAmerican ExpressDiscoverJcbDiners ClubApple Pay

© 2026 LabPro Inc. All rights reserved.

Pen Meter ST20M-C - 30393200

1

$189.00

Share

Product Number:30393200
Warning:California prop 65

Categories

OHAUS CorporationWater Analysis Meters

Description

Pen Meter ST20M-C - 30393200
Small, economical pen meters offer simple, fast, and straightforward operation.
With durable IP67 waterproof ABS housing, protective sensor cap, and an automatic shutdown feature that preserves battery life, OHAUS pen meters can endure consistent use in rough, wet environments.
Equipped with a wrist strap to prevent accidental drop and damage.
Family Tag Line: Compact Design for Fast, Convenient Electrochemistry Measurement At Your Fingertips
Family Name: Starter Pen Meters
Display: Liquid crystal display (LCD) display with secondary information line (on select models)
Applications: pH, oxidation-reduction potential (ORP), conductivity, dissolved oxygen (DO), salinity, total dissolved solids (TDS), temperature measurement
Construction: ABS Housing
Design Features: Easily replaceable electrodes, automatic shut off feature
Communication: N/A
Family 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.
Operation: 4 1.5V batteries (included)
Model No.: ST20M-C
Measurement Range: 0.0 – 10.0 ppt;0.0 – 99.0 °C;0.00 – 14 pH;0.00 – 19.99 ms/cm
Measurement Resolution: 0.1 °C;0.1 ppt;0.01 pH;0.01ms/cm
Accuracy ± (mV):
Display:
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)
pH accuracy (±): 0.05
Dimensions: 1.5 in x 7.28 in x 1.77 in (38 mm x 185 mm x 45 mm) (LxHxW)
Accuracy ± (Temperature):
Parameter:
Accuracy: ±2.0 % F.S.;± 0.05 pH / ± 0.5 °C
Power: 4 AG13 Batteries (Included)
Pen Meter ST20M-C - 30393200

Pen Meter ST20M-C - 30393200

1

$189.00

Share

Product Number:30393200
Warning:California prop 65

Categories

OHAUS CorporationWater Analysis Meters

Description

Pen Meter ST20M-C - 30393200
Small, economical pen meters offer simple, fast, and straightforward operation.
With durable IP67 waterproof ABS housing, protective sensor cap, and an automatic shutdown feature that preserves battery life, OHAUS pen meters can endure consistent use in rough, wet environments.
Equipped with a wrist strap to prevent accidental drop and damage.
Family Tag Line: Compact Design for Fast, Convenient Electrochemistry Measurement At Your Fingertips
Family Name: Starter Pen Meters
Display: Liquid crystal display (LCD) display with secondary information line (on select models)
Applications: pH, oxidation-reduction potential (ORP), conductivity, dissolved oxygen (DO), salinity, total dissolved solids (TDS), temperature measurement
Construction: ABS Housing
Design Features: Easily replaceable electrodes, automatic shut off feature
Communication: N/A
Family 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.
Operation: 4 1.5V batteries (included)
Model No.: ST20M-C
Measurement Range: 0.0 – 10.0 ppt;0.0 – 99.0 °C;0.00 – 14 pH;0.00 – 19.99 ms/cm
Measurement Resolution: 0.1 °C;0.1 ppt;0.01 pH;0.01ms/cm
Accuracy ± (mV):
Display:
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)
pH accuracy (±): 0.05
Dimensions: 1.5 in x 7.28 in x 1.77 in (38 mm x 185 mm x 45 mm) (LxHxW)
Accuracy ± (Temperature):
Parameter:
Accuracy: ±2.0 % F.S.;± 0.05 pH / ± 0.5 °C
Power: 4 AG13 Batteries (Included)
Pen Meter ST20M-C - 30393200