The 4-20mA pressure transmitters are easily adaptable to telemetry / SCADA systems, digital displays and 3rd party data loggers. The 4-20mA provides highly accurate water level measurements for a wide variety of applications. A two-wire 4-20mA current loop is used with our pressure transmitters. Current between 7.5 and 35 VDC. Vented cable for DipperLog NANO required (code 5032M). Available with digital display 4-20mA (5031).