InnovaSonic 203 – Sierra Economy Ultrasonic Flowmeter

Economical Clamp-On Ultrasonic Water Flow Meter


The InnovaSonic 203 liquid flow meter is optimized for customers still looking for high performance, but needing a lower-cost, less feature-rich option for dedicated clamp-on ultrasonic metering. The 203 digital liquid flow meter optimizes the measurement of water as it flows in HVAC, irrigation and other liquid applications.


  • High performance at an affordable price
  • Simply clamp-on outside of pipe for easy set up
  • Save time with no pipe cutting or process shutdown


Common Applications:

  • Cooling and heating fluid measurements
  • Water and wastewater measurements
  • Leak detection in piping systems
  • Monitoring and controlling of HVAC systems
  • Contactless product recognition
  • Interface detection
  • Automated process control


Product Benefits

  • Designed for water and general liquid flow metering applications
  • Tolerant of liquids with small amounts of air bubbles or suspended solids
  • No moving parts to clog or fatigue like turbine meters
  • Transducers clamped to outside of pipe
  • Permanent or temporary installations
  • Immune to the process compatibility concerns
  • Install meter during plant operations
  • No process shut-downs, no leakage risks
  • Operational safety and robustness
  • Ideal for large line sizes
  • Low maintenance, no moving parts, robust construction
  • High zero stability, nearly drift free
  • Mounting kit included to lock transducer into place
  • Modular electronics enabling field upgrades
  • SD card data logging capability
  • Large display with push buttons, user-friendly menu
  • Transducers are matched pair and temperature compensated
  • Field validation/configuration to ensure operating performance
  • Daily, monthly and yearly totalized flow rate
  • Positive, negative and net flow totalizers (with user-selectable scale factors)
  • Configurable pulse, analog and frequency outputs
  • Fully field configurable
  • Digital communications: RS232, RS485, Modbus RTU


Datasheet – PDF