Description
Ohaus ST20 Pen Meter

- Simple Operation in a Slim and Portable Design – Starter pen meters provide what should be expected of a small pen meters: simple, fast, straightforward, no-frills yet highly accurate operation time and time again
- Durably Constructed to Withstand Wear and Tear Resulting from Repetitive Use – With durable plastic housing, a protective cap that safeguards the sensor and an automatic shutdown feature to preserve battery life, the Starter pen meters can endure consistent use in rugged environments
Convenient Results at Your Fingertips
For over a century, OHAUS has perfected the art of measurement through our line of weighing products. Taking a similar approach to our weighing equipment, OHAUS now delivers a line of pen meters that are durable, practical and affordable. Starter pen meters – the portable solution for on-the-go measurement of pH, oxidation-reduction potential (ORP), conductivity, salinity, total dissolved solids (TDS) and dissolved oxygen (DO). Starter pen meters are the economical option when you are simply looking for meters that will provide accurate measurement with no restriction.
Convenient pH Testing
Two models with varying resolution and accuracy, ST10 and ST20 offer a convenient way to measure pH, or the relative acidity or alkalinity of a sample at a given temperature. The pH pen meters can be completely operated with just one hand, freeing up your other hand to handle samples.
- 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)
- Construction
- ABS Housing
- Design Features
- Easily replaceable electrodes, automatic shut off feature
Product General Attributes | |
|---|---|
| Product Height | 1.97 IN |
| Product Length | 8.78 IN |
| Product Width | 2.49 IN |
| HTS/Schedule B Number | 9027804530 |
| ECCN Number | EAR99 |
| Country of Origin | China |
| Shipping Height | 1.97 IN |
| Shipping Length | 8.78 IN |
| Shipping Width | 2.49 IN |


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