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 8139724 is a magneto-resistive position sensor designed for round slots with an NPN switching output and an N.O. contact function. This component operates at a maximum switching frequency of 480 Hz with a maximum output current of 100 mA, a repetition accuracy of 0.2 mm, and an ambient temperature range of -20 °C to 70 °C. It features oil-resistant, RoHS-compliant, halogen-free, and copper-free materials while conforming to EN 60947-5-2 with RCM, CE, UKCA, and KC-EMV certifications. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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 8139724. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.