Since its establishment, Shanghai Luji is committed to work out customized high quality water/soil analysis solution. Started as the Top Agent for the leading environmental monitoring sensor manufactures from US and Germany years ago, we can now self-manufacture and present a wide range of monitoring sensors, such as carbon dioxide sensor, conductivity sensor, ORP sensor, dissolved oxygen/optical dissolved oxygen sensor, turbidity sensor, nearly 20 different heavy metal ion-selective sensors (copper, lead, cadmium, ammonia nitrogen, nitrate, silver, potassium, etc), oxygen sensor, PH sensors, residual chlorine sensor and so no. In order to meet changing needs, we have developed the RS485 digital transmitter, which professionally based on the international Modbus protocol and (with independent intellectual property rights) the mating software with easy operating interface. Now our Water/ Soil quality monitoring products and system are widely recognized and trusted by clients, no matter in the desktop use, portable or online sampling, or in industrial & agricultural production and in Internet of Things, etc, we will continuously devote ourselves to offer the most