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 537701 is a round optoelectronic reflection light sensor conforming to EN 60947-5-2 with RCM and c UL us - Listed (OL) certifications, plus CE marking as per the EU EMC directive. This position-measuring sensor utilizes red light across a 0 mm to 600 mm working range within an ambient temperature span of -25 °C to 55 °C. It features a PNP bright-switching output, a maximum switching frequency of 1000 Hz, a maximum output current of 200 mA, a 2 V voltage drop, 15 mA idle current, and a DC operating voltage range of 10 V to 36 V with 20% residual ripple, backed by pulsed short-circuit protection and reverse polarity protection for all electrical connections. Submit the exact part number, quantity, and application requirements to request 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 537701. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.