Apera Instruments, AI5520, PH8500 Portable pH Meter Kit with GLP Data Logger and USB Data OutputAI5520 Includes Only:User manualpH 7.00 calibration solutionCarrying casepH 4.00 calibration solutionUSB cable201T-F pH electrodeSoftware flash driveScrew driverPH8500 meterpH 10.01 Calibration solutionFeatures:GLP Data management (500 groups of data storage), USB data output.Ideal for use in harsh environments -IP57 Waterproof rating, silicone socket protector and grip cover protect the instrument from general impact.Quick and easy 1 to 3 points auto. pH calibration with calibration reminder and last calibration check; automatically recognizes pH standards of 1.68, 4.00, 7.00, 10.01, 12.45.Built-in self-diagnosisensures pH calibration will be performed correctlyand guides you on how to fix common problems.Standard BNC connector, compatible with Apera's LabSen® Series professional pH electrodes for other applications.Brief IntroThe Apera InstrumentsPH8500Portable pH Meter Kitis designed for lab-grade pH and conductivity measurement in the field with various intelligent functions and a rugged structure.Easy CalibrationEasy 1-3 points of auto. pH calibration, recognizing pH standards of 1.68, 4.00, 7.00, 10.01, and 12.45. The slope data will show up after completing second and third point calibration, indicating the condition of your pH electrode. The self-diagnosis function ensures pH calibration will be performed correctly and guides you on how to fix common problems.ORP measurement is available in mV mode with an ORP probe connected (model 301Pt-C, sold separately).GLP Data management (500 groups of data storage), USB data output.Ideal for use in harsh environments -IP57 Waterproof rating, silicone socket protector and grip cover protect the instrument from general impact.The large backlit LCD displays pH/mV and temperature along with icons of stable readings and finished calibrations.The foldable stand allows use as a benchtop meter.