EC300 conductivity meter is an intelligent one-line chemical analysis equipment, widely used in continuous monitoring of temperature and conductivity value of the solution in thermal power, chemical fertilizer, metallurgy, environmental protection, pharmaceutical, biochemical, food and running water and so on. The continuous monitoring data is realized by remote transmission monitoring and recording through the transmission output connection recorder. It can also be connected to the RS485 interface and can be easily connected to the computer for monitoring and recording through the MODBUS-RTU protocol. Conductivity meter coupled to the electrode constant of 1.0 or 10.0 measurable general liquid; coupled with an electrode of 0.1 or 0.01, can accurately measure the conductivity of pure water or ultrapure water, especially suitable for steam power plants and boiler feed water On-line continuous monitoring of conductivity of high purity water such as condensate.\