Ultrasonic flowmeters Versatile and economical flow measurement of gases and liquids up to a nominal diameter DN 4000 Proline Prosonic Flow G 300 ultrasonic flowmeterHighly robust gas specialist for fluctuating conditions with compact, easily accessible transmitter Proline Prosonic Flow B 200 ultrasonic flowmeterThe device for accurate, reliable biogas measurement with loop-powered technology Proline Prosonic Flow E 100 ultrasonic flowmeterEconomical Ultrasonic flowmeter with integrated temperature measurement Prosonic Flow E Heat ultrasonic flowmeterIndustrial, certified heat flow sensor for improved energy consumption measurement Proline Prosonic Flow G 500 ultrasonic flowmeterHighly robust gas specialist for fluctuating process conditions as remote version with up to 4 I/Os Proline Prosonic Flow I 400 ultrasonic flowmeterInsertion flowmeter with Heartbeat Technology and web server for the water and wastewater industry Proline Prosonic Flow P 500 ultrasonic clamp-on flowmeterReliable, flexible, zero maintenance – noninvasive flow measurement, consistently accurate, even under challenging conditions Proline Prosonic Flow W 400 ultrasonic clamp-on flowmeterReliable, flexible, zero maintenance – noninvasive flow measurement, consistently accurate, even in limited spaces