1. The metal structure, strong stability. 2. The short trip, small structure design. 3. Low pressure loss design. 4. New magnetic coupling structure design ensure transmission, more stable. 5. According to user requirements can be attached with magnetic filter. 6. But with insulation or heating clip sets. 7. Used in various industries of gas and liquid measure, measurement part can use different capable person to adapt to different medium conditions. 8. Suitable for bad environment and corrosion serious medium, and has good heat resistance and compression s*x. 9. Intelligent double line liquid crystal display, can choose the scene when the transient flow, can show accumulative total/with backlit. 10. Optional two wire, battery, communication power supply mode. 11. With data recovery, and data backup and power lost protection function.