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SKU: 30073978

Ohaus TDS Meter

$121.50

Accurate Results Anywhere and Anytime You Need Them
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 with no restriction.

Standard Features Include:
• Simple Operation in a Slim and Portable Design—Starter pen meters provide what should
be expected of a small pen meter: 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.
• Waterproof Housing Protects the Meters in their Working Environment—
Equipped with a wrist strap that helps to prevent unintentional dropping, Starter pen meters
are constructed with an IP67 waterproof design that can prevent water damage
when accidentally dropped into liquid.

Model

Description

Ohaus Starter TDS Pen Meters

Portable pen meters for measuring total dissolved solids (TDS) in liquid samples. Choose an A model for measurements up to 100 mg/L or a B model for measurements up to 1000 mg/L. ST20T models also measure temperature and feature automatic temperature compensation.

Model Ohaus item number TDS range TDS resolution Temperature measurement
ST10T-A 30073978 0.0–100.0 mg/L 0.1 mg/L Not applicable
ST10T-B 30073979 0–1000 mg/L 1 mg/L Not applicable
ST20T-A 30073980 0.0–100.0 mg/L 0.1 mg/L 0.0–99.0 °C
ST20T-B 30073981 0–1000 mg/L 1 mg/L 0.0–99.0 °C

All four models have an LCD display and IP67 protection rating, and are powered by four included AG13 batteries. ST10T models do not provide automatic temperature compensation. ST20T models specify accuracy of ±1.5% for TDS and ±0.5 °C for temperature.