The METTLER TOLEDO Conductivity Meter is high quality!S230-USP/EP table top conductivity meter. Easy to operate: one-click start measurement or calibration, intuitive menu Settings, available in 12 languages. High-resolution color display: Numbers are displayed in large sizes on the 4.3-inch color display, and the ICONS are arranged in an orderly way to show relevant data at a glance. Rich peripherals: Meters can be connected to printers, computers, USB sticks and barcode scanners and other peripherals to improve work efficiency. Flexible calibration: For calibration, you can choose from 13 predefined standard fluids, set user-defined standards or manually enter electrode constants if the exact values are known. Two display layouts: Switch between the full information screen and the uFocus™ layout with just one click, so you're not distracted by unimportant information. Enrich peripherals: You can use USB and RS232 ports to connect to different Peripherals of Mettler Toledo at the same time, thus enhancing the functionality of the meter. Smart Electrode Management (ISM®) : The ISM® automatically identifies electrodes when connected to avoid errors and ensures that closer calibration data is used for future measurements.