Panametrics Terminal block - 4 pin

Dual channel transit time ultrasonic flow meter and liquid flow transmitter w/ two 4-20mA and two frequency/totalizer outputs.

Fixed-installation, noninvasive liquid flow measurement of velocity, volumetric and energy flow rates using transit time technology.

DigitalFlow transmitter for acoustically conductive fluids, including most clean liquids, and many liquids with entrained solids or gas bubbles.