Be confident in your purchase we're an Authorized Milwaukee Dealer. How cool is that?!?!? Features: Fast easy to read results with large digital LCD readout. Accuracy to 0.2 pH with a full 0.0 pH to 14.0 pH range. Set point range of 5.5 to 9.5 pH with alarm activated when reading is higher or lower than set point Comes with full mounting kit including probe holders. Lab grade probe included with a double junction, gel filled design for low maintenance. Specs: pH Range: 0.0 - 14.0 pH pH Resolution: 0.1 pH pH Accuracy: 0.2 pH Calibration: Manual 2 points Setpoint range: 5.5 to 9.5 pH Alarm Active: when reading is higher or lower than set point pH Electrode: MA911B/2 (included) Environment: 0 to 50C / 32 to 122F; max RH 95% Power Supply: 12 VDC adapter (included) Mounting kit (Included) Dimensions: 5.9 x 3.2 x 1.35 inches Weight: 6.3 ounces (meter only) The Milwaukee MC120 PRO High Range pH monitor offers lab grade accuracy with an easily viewable continuous check on pH levels with alarms.