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 8139723 is a magneto-resistive industrial component designed for round slots to measure position with a repetition accuracy of 0.2 mm. Featuring a PNP switching output with a normally open contact function, it operates at a maximum switching frequency of 480 Hz and a max output current of 100 mA across an ambient temperature range of -20 °C to 70 °C. This oil-resistant, halogen-free, and copper-free RoHS-compliant device conforms to EN 60947-5-2 and carries CE, UKCA, RCM, and KC-EMV markings. Submit the exact part number, quantity, and application requirements for a 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 8139723. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.