·pH（0～100.0）℃automatic/Manual temperature compensation;Dissolved oxygen automatic temperature compensation (0-45) ℃，Automatic salinity compensation (0-45) ppt，Automatic air pressure compensation (80-105) kPa;
·pHAutomatic calibration from 1 to 5 o'clock, with calibration guidance★；

·Self diagnostic function, (incorrect selection of standard solution,pHThe electrode slope exceeds the standard by<85% or>110%,pHThe electrode zero potential exceeds the standard by -60mV or>60mV, etc., and prompts corresponding information; ★

·pHCan be usedCH/ USA/ NISTin all15Calibration of standard solution; Custom standard buffer solution calibration;

·Configure a dedicated dissolved oxygen electrode calibration kit, which automatically calibrates with water saturated air;

·When calibrating salinity, there may be prompts for calibration solution errors or exceeding the standard;

·pHCalibration reminders can be set and calibration time can be viewed;

·Equipped with stable endpoint display and automatic locking display mode, optimized reading accuracy and response time★；
·Compliant with GLP data management practices; Real time clock display, manual, automatic data storage, adjustable timed storage mode, and can display and clear stored values;

·1000 sets of data storage；★

·HavingUSBCommunication interface;Standard data CD; After data transmission to the computer, the measurement serial number, date, time, measurement value, and temperature value can be displayed; ★

·High purity waterpHMeasurement mode ★; Add ammonia pure waterpHMeasurement mode ★;E_HMeasurement mode of oxidation-reduction potential★；

·Temperature units can be selected℃and℉；
·The instrument can be reset to factory settings with just one click★；
·Automatic shutdown, low voltage display;
·High quality three in one configurationpHElectrode, Swiss pure imported high-performance glass compositepHElectrodes,The dissolved oxygen electrode is equipped with a temperature sensor and a salinity sensor;

·Randomly give away three dissolved oxygen diaphragm caps;★

·360 degree steering and vertical lifting universal electrode bracket;★
·90 × 68mm large screen LCD, large font display, white backlight, clear, easy to operate;
·The operation interface is simple, with touch sensitive panel buttons that are moisture-proof, dustproof, and oil resistant, and have a long service life;
·Compliant withIP57Dustproof and splash proof rating, can be used in1Enduring underwater in meters deep water30Minute test;