Features: • Large LCD built into adjustable “flip-up” cover displays pH or mV and Temperature simultaneously • Microprocessor based with splash proof housing and front panel tactile touch pad to slope and calibrate • Rugged design for handheld or benchtop use; neckstrap for “hands-free” operation • Measures: pH: 0.00 to 14.00pH mV: -999mV to 999mV Temperature: 32.0°F to 212.0°F (0.0°C to 100.0°C) • Accurate to 0.02pH, 2mV, 0.8°F/0.5°C and resolution of 0.01pH, 1mV and 0.1° • Memory function stores and recalls 25 labeled readings • Min/Max storage and recall • Self diagnostics display codes help user troubleshoot electrode, buffer and temperature errors • °C/°F switchable • Audible beeper to alert user when function is completed • Low Battery indicator and Auto Shut off after 10 minutes of non use• OYSTER-15 kit includes OYSTER-10, mini pH electrode,sample buffers (4 and 7pH) and carrying case;