The DensityPRO+ offers either an ion chamber or a scintillation detector depending on the application. The base unit is supplied with a self-powered (or optional loop-powered) isolated 4-20 mA output. Up to three additional isolated and independent 4-20 mA outputs are available. The open architecture of the remote transmitter enables the inclusion of up to three additional I/O boards, making it suitable for mass flow measurements. In addition, the DensityPRO+ can be configured with two, four or six SPDT relays