MQ-311 Ultrasonic Open Channel Flow MeterDetailed product description：

Introduction to MQ-311 Ultrasonic Open Channel Flow Meter

Technical specifications of MQ-311 ultrasonic open channel flowmeter product

Technical parameters
Water level measurement range: 0-3.0m
Measurement accuracy of the whole machine ± 1% F.S: system error 3 ‰
Minimum water level resolution: ± 1mm
Power supply: DC24V/150mA; AC220V/100mA 
Display mode: LCD 2 × 16 bit with backlight, instantaneous flow display, historical data recording, automatic storage in case of power failure
Flow measurement range: Depending on the type of weir/channel used, the maximum can be 999999m3/h
Blind spot: 0.3m
Working temperature: -20 ℃~+60 ℃
Signal output: RS485, 4-20mA, 2-4 switch output
Protection level: IP65