AI533 Includes Only:PC820 Lab pH/Conductivity MeterLabSen 211 Lab pH Electrode2401T-F Conductivity ElectrodeMP500 temperature electrodepH Standard Buffer (4.00 pH,7.00 pH,10.01pH/50mL) 1 for eachConductivity Standard Solution (84μS,1413μS,12.88mS/50mL) 1 for each3M KCL Solution (50ml)Pipette9V Power AdapterFlexible Electrode HolderPC-Link Software DiskUSB CableInstruction ManualQuick ManualFeatures:Highest accuracy: ±0.002 pH± 1 digit; ±0.5% FS± 1 digit in conductivityThe Swiss LabSen 211 Combination pH Electrode and Precision BPB 2401T-F Glass Conductivity Electrode ensure highly stable & accurate pH and conductivity measurementsQuick and Easy auto calibration up to 5 points with calibration guide and reminder function (premixed standard solutions included)Slope display between calibrations helps you monitor the health of your pH electrodeThe large clear backlit LCD displays EC/pH and temperature simultaneously along with icons of stable readings and finished calibrations.GLP Data management (500 groups of data storage) with USB data outputThe Apera Instruments PC820 Benchtop pH/Conductivity Meter provides reliable pH and conductivity measurements with various intelligent functions and a durable structure. Equipped with Swiss LabSen 211 Combination pH electrode and Precision BPB (Brush-Resistant Platinum Black) glass conductivity electrode (2401T-F), the meter measures pH/EC/TDS/Salinity/Resistivity/Temperature in a stable and accurate manner. ORP (Redox) measuring mode available (ORP electrode sold separately).Equipped with the LabSen 211 Combination pH Electrode made with Swiss sensor technologies and materials, featuring an impact-resistant and bubble-free sensor tip, and a long-life reference system; compatible with TRIS buffer.Intelligent Functions:Quick & Easy Auto Calibration up to 5 points. The Smart Self-Diagnosis helps you conduct proper calibrations and monitor the condition of your probes with slope data display between calibrations. Calibration reminder and date check functions are also available. The large clear backlit LCD displays pH/EC/TDS/Salinity/Resistivity and temperature simultaneously along with icons of stable readings and finished calibrations.GLP Data management (1000 groups of data storage), USB data output and PC software support. Auto timing measurement/data logging mode available.Reliable Structure:IP54 Waterproof and Dustproof, ideal for use in harsh environments.