Often used in low-flow metering applications for lubricants or antifreeze, these transmitters measure flow rate and send the data to a remote display or programmable logic controller (PLC). To measure flow, they have oval-shaped gears that move the liquid through the flowmeter—how fast the gears turn correspond to the flow rate. Also known as transducers, they help you monitor status or control equipment by converting measurements to an electrical pulse that can be interpreted by receiving devices. The higher the flow, the more pulses they send. Mount them inline with your pipe system. They’re accurate in any mounting orientation.

These transmitters are calibrated with oil but can be used with other liquids and will generally measure accurately, even if they differ in viscosity and density.