Isco 4200 Series flowmeters

4210 Ultrasonic, 4220 Submerged Probe, 4230 Bubbler, and 4250 Area Velocity. When you need a monitoring system that's accurate, versatile and easy to use, turn to the latest generation of open channel flow meters from Isco. Our 4200 series is backed by over 20 years of experience in flow measurement. You can depend on Isco technology to meet your needs in an increasing complex monitoring environment.