Apera Instruments, AI5524, PC8500 Portable pH/Conductivity Meter Kit with GLP Data Logger and USB Data OutputAI5524 Includes Only:User ManualCarrying CasePC8500 MeterpH 4.00 calibration solutionpH 7.00 calibration solutionpH 10.01 calibration solution84 µS calibration solution1413 µS calibration solution12.88 ms calibration solutionSoftware Flash DriveScrew driverUSB cable2301T-S conductivity electrode201T-F pH electrodeBrief IntroApera Instruments Premium Series PC8500 Portable pH/Conductivity Meter Kit is designed for lab-grade pH and conductivity measurement in the field with a variety of intelligent functions and features in a rugged structure. Up to three electrodes can be connected to the meter simultaneously for the measurement of multiple parameters, including pH, conductivity, TDS, salinity, ORP, and temp.ORP measurement is available in mV mode with an ORP probe connected (model 301Pt-C, sold separately).Easy CalibrationQuick and easy 1- to 3-point auto. calibration, recognizing pH standards of 1.68, 4.00, 7.00, 10. 01, and 12.45; conductivity standards of 1413 µS, 12.88 mS, 84 µS, and 111.8 mS.The slope data will be displayed after completing 2nd and 3rd point calibration, indicating the condition of your pH electrode. The self-diagnosis function ensures calibration will be properly performed.Complete Parameter SettingsAuto. lock, auto. power off function, and calibration date check available. Calibration reminder can be set up.pH standard series, pH resolution, stability criteria, temperature unit, conductivity cell constant, reference temperature, and temperature compensation coefficient are all customizable. TDS conversion factor can be set from 0.40 to 1.00.Built ToughThe IP57 water-resistant structure makes the meter ideal for use in harsh environment. The rubber sleeve protects the instrument from general impact and gives you a firm grip.Large backlit LCD DisplayStability icon. Take the reading when the smiley face stays on screen.Icons for finished calibrationsSimultaneous temperature displayTimeManual storage icon and numberData logger with USB OutputAuto. or manual data logging with GLP Data management (500 sets of data storage) and USB data output for further analysis and report (only for Windows-based PCs).