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 537721 is a block-design industrial component utilizing an optoelectronic measuring principle with a diffuse reflection sensor and background suppression for position measurement. It features a red light working range of 15 to 150 mm, an NPN light-switching output with a max switching frequency of 500 Hz, and a DC operating voltage range of 10 to 36 V while conforming to EN 60947-5-2 with RCM and c UL us - Listed authorizations. Constructed copper-free and PTFE-free, this unit operates within ambient temperatures from -25 to 55 °C and includes pulsing short-circuit strength with a max output current of 200 mA. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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 537721. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.