pH/ORP/ºC COMBINED BENCH METER Range -2.00 to 16.00 pH / ± 699.9 mV / ±2000 mV/ -20.0 to 120.0 ºC with Automatic Calibration in 1 or 2 Points with 7 User Selectable Buffers, Manual or Automatic Temp. Compensation. Unit Comes With a pH Refillable Electrode Model # MA917B/1, Temp. Probe MA831R, Electrode Holder, Starter Refill Electrolyte MA9011 (3.5kcl), Power Supply, Refill Pipette and Starter Calibration Solution