Check the listing for details. Flo-Tech Activa flow sensor / flowmeter, F6202-AVB-NN. Condition: Used. Listed at 859.95 USD. Flo-Tech hydraulic flow sensor, part number F6202-ABV-NN. The flowmeter is either unused or used with no obvious signs of use and no obvious damage. I have no means to test the flowmeter, hence the price reduction and 30-day DOA return guarantee. These flowmeters are generally used to provide hydraulic flow / volume feedback to circuits that control precise movement, such as hydraulic motors and actuators in applications such as manufacturing and robotics. Specifications: Port Size & Flow Range: SAE 8; 0.4 to 7 GPMFlow Transducer: 0-5 VDC Out (IFC)Seals: Buna NTemperature port: 1/4 NPTF plugged, female, no T-sensor in this configurationPressure port: 1/4 NPTF plugged, female, no P-sensor in this configuration S/N varies for the unit buyer will receive. We will send the s/n at the time of order.