This company has recently added 4–20-mA signal capabilities to its Chem-Feed CD1 multi-diaphragm metering pump (photo) and its Flexflo A1 peristaltic metering pump. The 4–20 mA signal can be sent from the pump to a SCADA system where operators can remotely monitor the pump, allowing for improved automation and monitoring. The mA signal can also be used as an input for another device for controlling multiple devices with a single mA signal. The Flexflo A1 self-priming chemical-feed pump will not vapor lock and never loses prime. The Chem-Feed CD1 has dual-diaphragm hyperdrive technology, which provides a continuous chemical feed that is engineered to require no maintenance. — Blue-White Industries Ltd., Huntington Beach, Calif.