pH Meter ST 208

* Professional PH/mV METER. PH range : 0 to 14 PH x 0.01 PH. mV range : -1999 mV to 1999 mV.

* Used the optional ORP probe to become a professional ORP meter.

*Wide manual temperature compensation adjustment can be operated by push button on the front panel easily.

* Calibration for pH 7, pH 4 and pH 10 by push button.

* Temperature compensation of pH function can be done by optional ATC (Automatic Temperature

Compensation) probe.

* Auto shut off saves battery life.

* Memorize Max./Min. reading with recall.

* Data hold.

* RS232 computer interface.

Specification :

Display 51 mm x 32 mm, dual function LCD display,

Measurement pH 0 to 14, mV -1999 mV to 1999 mV

Operating Temperature 0 ℃ to 50 ℃(32 ℉ to 122 ℉).

Operating Humidity Max. 80% RH.

Temperature Compensation Manual 0 to 100 ℃, be adjusted by push button on front panel.

Automatic ( ATC ) With the optional TEMP probe ( TP-07 )0 to 65℃.

pH Calibration PH7, PH4, and PH10, 3 points calibration

Memory Recall Maximum and Minimum reading values can be saved

and retrieved by record function.

Sampling Time Approx. 0.8 second.

Power off Auto shut off saves battery life

Data Output RS 232 computer serial interface.

Overload indication “- – – -” symbol on the display.

Power Current Approx. DC 7 mA.

Power Supply 006P DC 9V battery

Weight 250 g/0.55 LB ( battery included ).

Size ( meter ) 195 x 68 x 30 mm ( 7.6 x 2.6 x 1.2 inch ).

SKU: ST 208 Category: pH Meter Tag: pH Meter

Versatile, Easy-to-Use pH Measurement with the pH Meter ST 208

Achieve dependable acidity or alkalinity readings for routine laboratory, educational, and field applications with the pH Meter ST 208—a compact, semi-professional instrument that balances performance, affordability, and user-friendly operation. Ideal for water quality checks, soil testing, food & beverage prep, aquaculture, and classroom use, the ST 208 delivers ±0.01 pH accuracy with automatic calibration and temperature compensation in a portable, battery-powered design.

Engineered for Everyday Accuracy and Convenience

The ST 208 pH Meter measures pH from 0.00 to 14.00 with 0.01 pH resolution, supported by a replaceable gel-filled combination electrode and Automatic Temperature Compensation (ATC) for consistent results across varying sample temperatures (0–100°C / 32–212°F). Its intuitive interface features a clear LCD display, one-button calibration, and a rugged, splash-resistant housing—making it suitable for both benchtop and on-site use.

High Accuracy: ±0.01 pH – Suitable for most routine testing and compliance-related tasks.
Automatic Calibration (1–3 Points) – Recognizes standard buffers (pH 4.01, 7.00, 10.01) for quick, error-free setup.
ATC with Built-in Temperature Sensor – Ensures accurate readings without manual adjustments.
Replaceable Electrode with BNC Connector – Easy to maintain and upgrade for long-term use.
Battery-Powered with Auto-Off – Over 300 hours of operation; ideal for field or mobile use.
Compact Design with Protective Cap – Includes carrying case and storage solution for electrode care.

Trusted for Routine Testing Across Industries

From monitoring drinking water and hydroponic nutrient solutions to verifying pH in dairy products or teaching acid-base chemistry, the ST 208 offers reliable performance without unnecessary complexity. It’s an excellent choice for small labs, environmental technicians, food handlers, and educators who need consistent results at a practical price point.

Whether on the bench or in the field, the pH Meter ST 208 delivers the right balance of precision, durability, and ease of use.

Accurate. Simple. Ready when you need it.