U-50 series Multi-parameter water quality checker enables to measure and indicate the monitoring result simultaneously up to 11 parameters with one unit. Tough & powerful design, considering user friendly field monitoring on site, such as rive, ground water, drainage water, etc. bring together feature of function and performance, which makes simple operation for everybody. As for the control unit design for field operations, U-50 has Auto-calibration feature provides hassle free calibration of pH, dissolved oxygen, conductivity, turbidity and depth. Meanwhile, this unit manage the data with integral USB connection to data transfer to a PC and has auto hold function freezes average data values on the screen to offer more time to verify or transcribe data.