Home > pH Meters >

Ohaus ST3100-F pH Meter
Ohaus ST3100-F pH Meter

Manufacturer's List Price: $740.56
Our Price: $592.45
Money Saved: $148.11

Condition: Brand New
Warranty: 2 Year Manufacturer's Warranty
Typically Ships Within: 5 - 8 Business Days

Request a Formal Quote

Quantity in Stock:1

Product Code: 30058489

Technical Specification Sheet (NEW)

Ohaus ST3100-F pH Meter

Whether you are looking for a basic model that can get the job done right and on time, or one with premium features, you will find a meter to meet your needs in the Starter line of bench meters. The Starter Series carries on the OHAUS promise of delivering the highest quality measurement results while maintaining the best price/performance ratio in the market. Starter 3100 offers many premier features that propel the bench meter to an advanced level of operational efficiency

The Ohaus ST3100-F pH Meter includes:
  • Stand-Alone Electrode Holder
  • In Use Cover
  • pH Buffer Powder Set (4.01, 7.00, 10.01)
  • ST310 3-in-1 Refillable pH Electrode
  • Power Cord
  • Operator's Guide
  • Manufacturer's Documentation
  • 2 Year Manufacturer's Warranty

Ohaus ST3100-F pH Meter Specifications

Measurement Range

-2.00 – 16.00 pH; -1999 – 1999 mV; -5 °C – 110 °C


±0.01 pH; ±1 mV; ±0.5 °C

Measurement Resolution

0.01 pH; 1 mV; 0.1 °C


LCD with backlight


ST310 (Included)

Accuracy ± (mV)

1 mV

Accuracy ± (Temperature)

0.5 °C

Battery Life

Not Applicable


3 Point

Dimensions (HxLxW)

3.07 in x 8.66 in x 6.89 in (78 mm x 220 mm x 175 mm)

In-use cover


Measurement Range (Temperature)

-5 °C – 110 °C

Measurement Range

-1,999 mV – 1,999 mV

Net Weight

1.65 lb (0.75 kg)


pH / ORP

pH accuracy (±)


pH measuring range

-2 – 16

pH resolution



AC Adapter (Included)

Resolution (Voltage)

1 mV

Temperature Compensation


Temperature Resolution

0.1 °C

Temperature Sensor


Working Environment

41°F – 104°F, 80%RH, non-condensing (5°C – 40°C, 80%RH, non-condensing)

Why Buy From Marshall Scientific?

Marshall Scientific's primary goal is to enhance your laboratory research at a more affordable price. Our industry-trained customer service team is always here to assist you along every step of your purchase, from initial product questions to technical support, and everything in-between. With our connection to some of the industry’s largest manufacturers, we can ensure you receive the lowest price without sacrificing quality whatsoever.

Brand-New Products for Far Less than Retail

Most Pieces Ship within 2 to 5 Business Days

All Products are Fully Warrantied

Trained Customer and Technical Support

Industry Leading Overall Customer Satisfaction

Bausch + Lomb
Working with Marshall Scientific was overall an enjoyable experience. Their customer service really helped me choose the product that fit my needs, and checking out was easier than I expected. Shipping was faster than expected which was also a plus!
James M. / Bausch + Lomb
I have purchased a few items from Marshall Scientific over the years and I have always had great experiences with both the products and the customer support. Chat feature definitely makes both communicating and navigating easier. I would recommend this company to a colleague.
Lila B. / Caltech
I just received the two Polyscience chillers I ordered through your ecommerce store and I couldn't be happier with my purchase. Customer service was instrumental in helping me choose the correct model. Thanks again!
Nora F. / Sanofi
Click Here to View Our Other Testimonials →

Share your knowledge of this product. Be the first to write a review »

Browse for more products in the same category as this item:

pH Meters
Brand > Ohaus