The Extech Oyster-15 pH/mV/temperature kit features a large LCD built into an adjustable flip‑up cover that displays pH or mV and temperature simultaneously. Memory for up to 25 readings, accuracy ±0.02pH, ±2mV, ±0.8°F/0.5°C. MIN/MAX mode, auto or manual temperature compensation, self‑diagnostics display codes, and 5‑point buffer recognition.

Splash‑proof housing and front panel tactile touch pad for slope and calibration. Rugged design for handheld or benchtop use; neckstrap for hands‑free operation. Kit includes Oyster‑10 meter, neckstrap, 9V battery, mini pH electrode, sample buffers (4 and 7 pH), and carrying case.