Apera Instruments PH820 Precision pH Meter (pH Range: 2,000 to 19,999)

Accurate to 0.002 pH measurements with LabSen 211 pH electrode and MP500 temperature sensor Quick and easy 1 to 5 point calibration with automatic buffer detection Large, illuminated LCD simultaneously displays pH and temperature, as well as additional measurement and calibration information GLP data management (500 storage groups) with data output via USB Self-diagnosis shows electrode condition