Liquid Flow Sensors
Transit-time transducer pairs for water metering and in-water ranging, at 1 MHz and 2 MHz.
2 sensors in this family
A water meter has to resolve a flow difference measured in nanoseconds of transit time, on battery power, for years, with no moving part to wear.
Ultrasonic Flow Sensor 1MHz
A 1 MHz transit-time transducer pair that starts up quickly and returns an easily identified signal edge, so the metering ASIC can lock onto the upstream and downstream arrival times without long averaging.
View specifications →
Ultrasonic Flow Sensor 2MHz
A 2 MHz transit-time transducer with a metal-faced housing: the shorter wavelength gives finer timing resolution on a short acoustic path, and the metal face takes the pressure and the wetted duty.
View specifications →Industries and application notes
- Smart Water Metering — Static water meters have to bill accurately for years on a single battery, with no impeller to silt up or wear.
- Battery-Powered Smart Water Meters — Why start-up time is an energy specification, not a convenience one.
Which one fits your flow body?
Send us the mechanical envelope and the acoustic path and we will confirm the configuration against the current drawing.