The first three-beam, custody-transfer ultrasonic flowmeter, the ALTOSONIC III is intended to replace turbines and positivedisplacement (PD) flowmeters in the fiscal measurement of light liquid hydrocarbons. For custody transfer, the meter offers 0.2% accuracy and is compliant with OIML R-117. With no moving parts, the ALTOSONIC III eliminates problems with clogging, scaling or blockage. And with no pressure loss, the need to upsize pumps (with the corresponding costs for procurement and electricity) is avoided.