Dynasonics Series TFXM multipipe multipath clamp-on meter uses time of flight ultrasonic technology for noninvasive readings. Unit installs quickly by clamping transducers to outside of pipes ranging from 2-100 in. Each measurement channel contains integral 4-20 mA dual-relay and RS485 communications. Optional Windows-based UltraLink software and IR adaptor allow complete programming and calibration via notebook PC.