combines 4 relays, 4-20 mA output, and pump/valve control in one unit for total fluid handling and automation. Model UCL-510 is built for small tank applications (49.2 in. or less) and offers switch, controller, and transmitter capabilities. Featuring 2 in. dead band and PC interface for configuration, ultrasonic level sensor is suited for corrosive and dirty applications and is virtually maintenance-free.