*Accuracy: ±0.75% F.S. *Measuring tube diameter: 15~600mm (0.5~24inch). *Measuring flow range: 0.15~8 m/s (0.5~26inch). *Power supply: DC 15~24V. *Operating temperature: -20~90℃/ -4~194℉. *Protection: NEMA4/ IP65 or NEMA6 6P/ IP68.