7 inch color capacitive screen with high resolution (1024*600) and sensitivity, which can show more parameters, more intuitive and simpler to read data. ●English and Chinese operating system, humanized design with adjustable screen brightness. System language can be customized according to specific requirements. ●Auto calibration, auto temperature compensation, data storage, USB data export, clock, wireless printing, function setup, smart self-diagnosis and other intelligent functions. ●Big built-in memory can store 1000 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 buffers for option: USA series, NIST series and China series. ●Can set up pH measurement modes of high purity water and pure water with ammonia to meet the requirements of power, petrochemical and other industries ●With standard Bluetooth module and support wireless Bluetooth printing to make operations much easier for users. Optional data transfer to PC and cell phone via Bluetooth. ●Smart judge of electrode status to ensure accurate use for operators. ●IP54 dustproof and waterproof housing.