Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Festo
The Festo part number 552139 is an industrial pneumatic distance measuring component featuring a sensing range of 20 µm to 200 µm and a repetition accuracy of ±2.5 µm. It operates within a 4 bar to 7 bar operating pressure and a 0.8 bar to 1.6 bar supply pressure using compressed air as per ISO 8573-1:2010 [7:4:4] with possible oil lubrication. The unit includes dual PNP switching outputs with window comparator and threshold value functions, functioning as a switchable N/C or N/O contact with a maximum output current of 100 mA across a 22.8 V to 26.4 V DC operating voltage range. Compliance includes RCM, c UL us recognized (OL), CE marking for EMC and RoHS, UKCA for EMC and RoHS, and KC-EMV alongside RoHS material compliance. Submit the exact part number, quantity, and application requirements for a formal quote.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Festo 552139. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.