KEYENCE FD-Q20C Clamp-On Flow Sensor with Mounting Hardware
Fits ½-inch and ¾-inch nominal pipe (15A / 20A), not ½-inch outside-diameter tubing.
FD-Q20C
$289 / each
Shipping or freight and applicable sales tax are additional.
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Ordering and availability
One item available at $289 plus $12 shipping ($301 before applicable sales tax). Purchase quantity 1 includes one KEYENCE FD-Q20C sensor, the mounting hardware pictured in the box, and the box shown. Fits ½-inch and ¾-inch nominal pipe (15A / 20A), not ½-inch outside-diameter tubing.
Condition
Industrial surplus in an opened box with cosmetic storage and handling marks. Prior service history is not confirmed; see photos for condition.
Specifications
KEYENCE FD-Q20C, FD-Q series clamp-on flow sensor with digital display. Device label lists 20–30 V DC, 300 mA, LPS or Class 2 supply; IO-Link; OUT1 and OUT2 (100 mA), with OUT2 / analog output (4–20 mA) / external input sharing the labeled connection. The rated-flow label lists up to 60 L/min for 1/2-inch (15A) and up to 100 L/min for 3/4-inch (20A). Made in Japan, per label. Device identification marking: G73320269. Customer stock reference: 451-07668-000. Includes the mounting pieces shown in the open-box photo. Packaging bears a handwritten note: "Doesn't fit 1/2 tube." Fits 1/2-inch and 3/4-inch nominal pipe (15A / 20A), not 1/2-inch outside-diameter tubing. KEYENCE specifies supported pipe outside diameters of 18–23 mm for 1/2-inch pipe and 23–28 mm for 3/4-inch pipe.
Common industry descriptions
This item may also be described as KEYENCE FD-Q20C, FD-Q series clamp-on flow sensor, IO-Link flowmeter, 4-20 mA flow sensor, 451-07668-000, G73320269, 1/2-inch nominal pipe, 3/4-inch nominal pipe, 15A 20A pipe flow sensor.
Reference
KEYENCE FD-Q20C specifications and supported pipe sizes (consulted 2026-10-12)
Testing available
Functional and flow-accuracy testing have not been documented. Unless specific results are documented on this page, the item remains untested by Copper Holler Surplus, LLC. No powered, destructive, pressure or load testing will be performed without advance agreement.