QT621 Portable ultrasonic flowmeter widely used in water treatment, thermal power plants, petrochemical,building air conditioning systems and other fields.

It can measure from DN25mm~1200mm pipe size and have analog output: 4~20mA, Max 750 Ω. Modbus: RS485.

It is a battery operated flow meter specifically designed for use on a wide range of pipe sizes and can provide a full day of use on a single charge. The clamp on design does NOT require a system shutdown or penetration of the pipe in any way when installing and operating this meter. Instead, precision matched signal transducers are mounted on the pipe to accurately measure flow through the pipe wall. The rugged, handheld backlit display allows for easy set up via intuitive menus.