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 537765 is an optoelectronic retro-reflective sensor featuring a block design and polarized red light with a working range of 0 to 5,500 mm. Built with copper- and PTFE-free materials conforming to EN 60947-5-2, it operates on a 10 to 30 V DC range with a PNP antivalent switch output, 1,000 Hz maximum switching frequency, and pulsing short circuit strength. This unit bears the RCM Mark and c UL us - Listed (OL) authorizations alongside a CE symbol according to the EU-EMV guideline. 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 537765. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.