The Sonic-ProSeries of Hybrid Ultrasonic Flowmeters now offers optional National Institute of Standards and Technology (NIST) calibration. With this service, each meter is individually calibrated with water only and includes a calibration certification graph. Blue-White’s Class A calibration standard test equipment is certified to provide accuracy of +/- 0.43%. Blue-White calibration standards comply with MIL-STD 45662A and ANSI/NCSL Z540-1 and are traceable to the National Institute of Standards and Technology (NIST). Sonic-Pro flowmeters have the ability to measure fluid flow using either Doppler or Transit Time methods. Additional Sonic-Pro Model S3c features include: Non invasive clamp-on transducers; Custom metric algorithms and DSP technology ensures reliable, accurate measurement;and an easy reading display–20 X 240 pixels with backlit LCD. The Sonic-Pro S3c is housed in a NEMA 4X (IP 66) wash down enclosure.