DN50-DN700 River water handheld ultrasonic flowmeter sensor Installation process is very simple, all Chinese human-machine interface, more easy to operate. Particularly suitable flow balance testing and flow monitoring: drinking water, river water, sea water, cooling water, hot water, industrial waste water, lubricating oil, diesel oil, fuel oil, chemical liquids. Accuracy: +/-1.0% of FS Wide range: DN300mm-DN6000mm Measuring clean liquids Built-in rechargeable battery 3.6V 2000 lines storage Communication: RS232