Suitable for high precision pH/conductivity measurements in scientific research, quality control, biotechnology and fine chemistry industry. Main Features ?6.5 inch LCD screen which is intuitive and can show more parameters. Humanized design of operating interface makes operations simpler. ?Omron long lasting and light touch panel can be used more than 100,000 times. ?Auto calibration, auto temperature compensation, data storage, USB data export, clock, wireless printing, function setup, smart self-diagnosis and other intelligent functions. ?Built-in big memory can store 500 sets of test data which can be saved and transferred to USB flash drive and opened with Excel, very easy and convenient for edit. ?Auto recognition of standard pH buffer solutions and there are three kinds of standard buffer for option: USA series, NIST series and China series. ?With optional Bluetooth module and support wireless Bluetooth printing to make operations much easier for users. Optional data transmission to cell phone via Bluetooth. ?Auto recognition of eight kinds of standard conductivity solution and there are two series of standard solution for option: USA series and China series. ? Adopt advanced conductivity measurement technology, one point calibration of conductivity electrode can meet the measuring accuracy requirements for test 0.5? S/cm ~ 200mS/cm. ? Able to switch between conductivity, TDS, salinity and resistivity. Multinomial calculation for TDS and salinity to ensure the conversion precision of the full scale. ?Smart judge of electrode status to ensure accurate use for operators. ? IP54 waterproof and dust