{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SMEO-1-S-24-B","brand":"Festo","brandSlug":"festo","productSlug":"SMEO-1-S-24-B","canonicalUrl":"https://aoctrl.com/festo/SMEO-1-S-24-B","factsUrl":"https://aoctrl.com/api/mcp/products/SMEO-1-S-24-B","rawCanonicalId":null},"summary":{"shortDescription":"Festo SMEO-1-S-24-B B-series magnetic reed proximity sensor, 230 VAC / 200 VDC, 1000 mA, 27 W, IP67, M8x1 3-pin connector.","salesMarkdown":"The Festo SMEO-1-S-24-B is a B-series magnetic reed proximity sensor — the kind that detects the piston position in pneumatic cylinders via a magnetic field. It's a contacting, bipolar N/O switch, so the reed closes when the magnet passes, and it handles both AC and DC loads without polarity concerns. The 27 W maximum switching capacity at up to 1000 mA means it can drive a small relay coil or a PLC input directly, no interposing amplifier needed. The IP67 rating tells you the housing and the M8x1 3-pin connector survive washdown and coolant spray — common on packaging and assembly lines where sensors get hosed off. This sensor slides into the T-slot of Festo cylinder profiles — the SMEO-1 body is sized for standard C-slot and T-slot grooves. The 34 x 15.7 x 23 mm footprint fits flush into the slot, and the M8x1 plug lets you replace a failed sensor without pulling new cable through the track. Ambient range of -25 to +70 °C covers unheated plant floors and cabinets near ovens, but watch the upper end if the cylinder is close to a heat source. ## Signal integrity and repeatability The ±0.1 mm reproducibility is tight for a reed sensor — you get consistent switching point cycle-to-cycle, which matters for end-of-stroke confirmation on pick-and-place or clamping operations. The contacting nature means there's no leakage current when open, unlike solid-state proximity switches, so a PLC input sees a clean dry contact. If the signal looks jittery, check the shield on the M8 cable first — reed sensors are passive, so any noise coupled into the pair shows up at the input card. The SMEO-1-S-LED-24-B is electrically identical — same 24 VDC nominal, same 1 A / 27 W switching capacity, same M8 connector and IP67 rating. The difference is the LED status indicator on the LED variant. If your panel has a local HMI or the cylinder is visible during cycling, the LED saves a meter check. If the sensor is buried in a cable tray or inside a machine guard, the non-LED SMEO-1-S-24-B is the same part without the visual feedback — and one less LED to fail in high-vibration applications.","metaTitle":"Festo SMEO-1-S-24-B Proximity Sensor, Magnetic Reed, M8 Conn","metaDescription":"Festo SMEO-1-S-24-B magnetic reed proximity sensor, 230 VAC/200 VDC, 1000 mA, 27 W, IP67, M8x1 3-pin plug. 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":"SMEO-1-S-24-B","Weight":"0.1 Kg","Condition":"New","Shelf No.":"210310","Dimensions":"34 X 15.7 X 23 mm","Generation":"B series","Manufacturer":"FESTO","Supply Voltage":"230 VAC, 200 VDC","lifecycle_stage":"current","Switching Output":"Contacting, bipolar","Ambient Temperature":"-25 … +70 °C","Max. Output Current":"1000 Ma","Degree of Protection":"IP67","Electrical Connection":"Plug M8x1, 3-pins","Max. Switching Capacity":"27 W","Operating Voltage Range":"0 … 30 VDC","Switching Element Function":"N/O contact","Reproducibility of Switching Ppoint<sup>1)</sup>":"±0.1 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$35.00","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/SMEO-1-S-24-B/alternatives.json"},"ai":{"faq":[{"question":"Will the SMEO-1-S-24-B drop into a panel wired for the SMEO-1-B?","answer":"The SMEO-1-B uses a 2.5 m cable instead of the M8 connector, so the physical connection is different. The switching function is the same — N/O reed contact — but you would need to either replace the cable or adapt the connector. The mounting footprint is nearly identical (15.5 x 14 x 34 mm vs 34 x 15.7 x 23 mm), so the slot fit is compatible."},{"question":"What compliance documentation is available for the SMEO-1-S-24-B?","answer":"The evidence does not list specific compliance certifications (RoHS, REACH, UL, CE) for this part. Festo typically provides a declaration of conformity for CE-marked sensors; request the specific documentation with your RFQ."},{"question":"What is the maximum switching capacity and what does it drive?","answer":"The sensor is rated for 27 W maximum switching capacity at up to 1000 mA. That is enough to switch a small relay (24 VDC coil at ~30 mA) or feed a PLC digital input directly without an amplifier. For inductive loads like contactor coils, add a flyback diode across the load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/festo/SMEO-1-S-24-B","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/SMEO-1-S-24-B 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}}