Product description ph meter, ph-mv meter, AB315, ph meter benchtop Features - Large, backlit display simultaneous shows pH, mV and temperature readings - 1-5 point pH calibration with automatic buffer recognition of 4 pH buffer sets - One point relative mV calibration (RmV) for ORP measurements - One point ATC temperature probe calibration - Calibration due alarm, selectable 1 to 60 hr., or off Specification - pH range: -2.00 to 18.00 - pH accuracy: ±0.01 - Memory: 500 data sets - One to five-point pH calibration - Automatic buffer recognition - pH slope and offset display - One-point mV calibration Include : pH/mV Meter with pH/ATC Epoxy-body Double Junction Gel-filled Electrode and ph buffer 4,7,10