... better than 1% 4 Response Time 0-999 seconds Power meterTDS-100H handheld ultrasonic flowmeter is a battery-powered ultrasonic flowmeter with ... , user-configurableVelocity±32 m/sPipe Size20mm-6000mmRate UnitsMeter, Feet, Cubic Meter, Liter, Cubic Feet, USA Gallon, Imperial Gallon, Oil Barrel, USA ...