{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMTO-4U-PS-S-LED-24","brand":"Festo","brandSlug":"festo","productSlug":"SMTO-4U-PS-S-LED-24","canonicalUrl":"https://aoctrl.com/festo/SMTO-4U-PS-S-LED-24","factsUrl":"https://aoctrl.com/api/mcp/products/SMTO-4U-PS-S-LED-24","rawCanonicalId":null},"summary":{"shortDescription":"Festo SMTO-4U-PS-S-LED-24, PROXIMITY SENSOR, U-shaped round housing, PNP normally open, M8 3-pin, IP67, 10–30 V DC, 200 mA.","salesMarkdown":"## Sensor signal and fit The Festo SMTO-4U-PS-S-LED-24 is a magneto-inductive proximity sensor in a U-shaped round housing, delivering a PNP normally-open switching output. It operates on a 10–30 V DC supply and switches up to 200 mA — typical for direct input to a PLC or a small relay load. The M8 3-pin connector keeps wiring consistent with Festo's SMTO/SMT sensor family; the IP67 rating means the sensor body and the M8 coupling withstand washdown, so it suits pneumatic actuator position feedback on a food-grade or wet-area line. ## Peer contrast — connector vs. cable The closest functional peer is the SMT-8F-PS-24V-K0,3-M8D, which uses a cable with an M8 plug rather than the SMTO-4U's pure M8 connector. Both are PNP normally open, 10–30 V DC, but the SMT-8F carries a 100 mA rating and a narrower temperature range (-5 to 60 °C). The SMTO-4U's 200 mA output and wider -25 to 70 °C range give it more headroom for higher inrush loads or hot cabinet environments. ## Mounting and materials The U-shaped round housing is PET, PA, and PUR — lightweight and corrosion-resistant for pneumatic cylinder T-slot mounting. Ambient operating temperature spans -25 to 70 °C, covering most cabinet and machine-mount conditions. The M8 connector locks with a standard 3-pin mating cordset; no special tooling needed for panel integration.","metaTitle":"Festo SMTO-4U-PS-S-LED-24 Proximity Sensor, PNP NO, M8, IP67","metaDescription":"Festo SMTO-4U-PS-S-LED-24 proximity sensor, PNP normally open, M8 3-pin, IP67, 10–30 VDC, 200 mA. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Proximity Sensors"],"specifications":{"Type":"PROXIMITY SENSOR","Model":"SMTO-4U-PS-S-LED-24","Art No.":"152742","Housing":"Round design, U-shaped housing","Condition":"New","Shelf No.":"200105","Manufacturer":"FESTO","Connector type":"M8 Connector, 3-pin","lifecycle_stage":"current","Enclosure rating":"IP67","Housing material":"PET, PA, PUR","Switching output":"Normally open","Electrical design":"PNP","Operating Current":"200 mA","Operating Voltage":"10 … 30 V DC","Measuring principle":"Magneto inductive","Ambient Operating temperature":"-25 … 70°C"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$396.81","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/SMTO-4U-PS-S-LED-24/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy SMTO-4U-PS-S-LED-24 and how is it quoted?","answer":"This sensor is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Will SMTO-4U-PS-S-LED-24 replace SMT-8F-PS-24V-K0,3-M8D without rewiring?","answer":"Both use an M8 3-pin connection, so the physical fit is the same. The SMTO-4U has a higher 200 mA switching capacity and wider temperature range, but the electrical design (PNP, normally open) and voltage range (10–30 V DC) are identical. No wiring change is needed at the connector."},{"question":"What is the listed type and model of this sensor?","answer":"The listed type is PROXIMITY SENSOR and the model is SMTO-4U-PS-S-LED-24."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/festo/SMTO-4U-PS-S-LED-24","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/festo/SMTO-4U-PS-S-LED-24 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}