1) The mobile phone fully displays all measurement functions, and the data is clear at a glance. Supports mobile controls with and without backlight, showing battery level.2) View data at any time, save data automatically or manually, automatically adjust the time interval for saving data, support data sharing, save data as excel, and change dataAt a glance.3) The mobile phone can set the upper and lower limits of PH and TDS/EC. Set them according to your needs. When the value you set exceeds the test range, the interface will display a red value abnormally.4) 5-point calibration, two sets of calibration modes can be selected, and calibration records can be viewedfeature:scope:PH: 0.00~14.00pHTEMP: 0.1-60.0C; 32.0-140.0FTDS: 0~9999ppmEC: 0~100009uS/cmChlorine: 0.1~4.0mg/LORP :-1200~+1200mVResolution:PH: 0.01pHTEMP: 0.1C; 0.1FTDS: 1ppm, 0.1pptEC: 1uS/cm;Accuracy:PH: 0.05pH temperature: 0.5?TDS/EC: 2%FS