Abstract: A device for dispensing and measuring fluids such as chemicals in a container having a top and a bottom, the container typically being a shipping drum. The device includes an adapter which is sealingly threaded into the top of the container and is connected to a foot structure by tube means to pass fluid to the adapter from an intake in the foot structure. A fitting is adapted to be connected to the adapter and has an external conduit to withdraw contents of the container through the dispensing device. A pressure transducer is included in the foot structure with electrical conductors passing to the adapter. A removable plug connector makes external electrical connection responsive to the condition of the pressure transducer for external connection to a controller which determines either the amount of fluid remaining in the container or the amount of fluid withdrawn from the container.