Oyster Series pH/mV/Temperature Meter. Large LCD built into 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, neck strap 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, 0.8F/0.5C and resolution of 0.01pH, 1mV and 0.1 deg. 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. 5 point buffer recognition (1.68, 4.00, 7.0, 10.00, 12.45) with adjustable buffer values. Automatic or Manual temperature compensation. Oyster-15 kit includes Oyster-10, mini pH electrode, sample buffers (4 and 7pH) and carrying case.