Ultrasonic Flow Sensor
The ProA Flow non-invasive clamp-on ultrasonic flow meter line provides accurate bioprocess volumetric liquid flow measurement for upstream and downstream operations. Using sound waves to measure flow velocity through the tubing wall, sensors clamp externally onto flexible plastic tubing with no process contact — eliminating contamination risk and making them well-suited for single-use bioprocess assemblies including silicone, TPE, PTFE, and PVC tubing.
Available in a wide range of tubing sizes and flow rates, ProA Flow ultrasonic flow meters include built-in analog output and digital communication options for integration with external control systems and automation platforms — including flow control applications.
ProA Flow Sensor Resources
- Read our Non-Contact Flow Meter FAQ
- Read “The ProA Flow Clamp-on Flow Sensor: Accurate, Affordable Sensors Boost Bioprocessing Applications”
- Learn more about ProA Flow Communication Options
Sensor Features
- 2-year warranty
- Highly precise and stable measurements in wide linear ranges, with proven measurement accuracy of +/-3% of reading
- External measurement with no process contact for highest sterility
- Bi-directional sensing, provides air bubble detection and Total Volume Calculation
- Compatible with most flexible tubing materials including Silicone, TPE, PTFE, PVC, etc.
- Designed for single-use bioprocess assemblies — clamp-on devices attach externally onto flexible tubing with no process contact, preserving sterility in upstream and downstream operations
- Direct wiring to control system (via analog signal) or connection to PC Software
- Array of accessories for data transmission, local display, and automated pump control
Technical Specifications
Accessories
Allows connection of up to 3 ultrasonic flow sensors for local display and signal retransmissions. Flow Viewer Software included.

Ideal for benchtop use. Provides power and connects the ultrasonic sensor to an external device via 4-20 mA analog signal or direct connection to PC via USB. Flow Viewer Software included. Available in NEMA4X enclosure.
Another tool for the lab scientist! Provides power to sensor, displays the flow rate and total flow. Allows resetting total flow and perform zero adjustment.










