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 8128404 is a magnetic Hall position sensor designed for round slots with a 35 mm sensing range and a 0.012 mm displacement resolution. It operates within an ambient temperature range of -40 °C to 80 °C, offering a maximum travel speed of 4 m/s, a 2 ms typical sampling interval, and configurable 2x PNP or 2x NPN switching outputs with a max switching frequency of 166 Hz. This RoHS-compliant and halogen-free component carries RCM, CE, and UKCA markings in accordance with applicable EMC and RoHS directives. 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 8128404. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.