1. High precision measurement, measurement precision is better than the plus or minus 1%, linearity, repeatability accuracy of 0.5% 0.2% 2. Small volume light weight, volume: 210 x 90 x 30 mm, weight is only 0.5 kg 3. Non-contact measurement, will take magnetic ultrasonic flowmeter sensor adsorption in the tube's outer wall, can complete the flow measurement 4. Wide measurement range, choose different types of sensors, which can realize caliber 3/4 "~ DN6000 pipe flow measurement 5. Charging power supply, with large capacity ni-mh rechargeable batteries, can support the flowmeter continuous work 12 hours