SLF500 ultrasonic clamp-on flow meter measures bi-directional flow through pipes, doesn't intrude into the process line, and has no pressure drop.
In-Line Ultrasonic Flow Meters
Ultrasonic Gas Flow Meter Series FF1225 - Lauris Technologies - Ultrasonic Gas Flow Meters
Ultrasonic Flow Meter UF5000
Ultrasonic flow meter – VTSYIQI
Ultrasonic Gas Flow Meter Series FF1225 - Lauris Technologies - Ultrasonic Gas Flow Meters
FTI Flow Technology Inc. • Fluid Handling Pro
SLF-500 - Clamp-On Ultrasonic Flow Meters - Ultrasonic
Ultrasonic flow meter GF U1000 V2 - 159300301
NivuFlow 600 Flow Meter