{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"E3JK-R2M1","brand":"Omron","brandSlug":"omron","productSlug":"E3JK-R2M1","canonicalUrl":"https://aoctrl.com/omron/E3JK-R2M1","factsUrl":"https://aoctrl.com/api/mcp/products/E3JK-R2M1","rawCanonicalId":null},"summary":{"shortDescription":"Omron E3JK-R2M1, retro-reflective photoelectric sensor, Red LED 660nm, M.S.R. function, 0–2.5 m sensing distance, relay output 3 A.","salesMarkdown":"The Omron E3JK-R2M1 is a retro-reflective photoelectric sensor using a visible red LED at 660 nm as its light source. The M.S.R. (Mutual Interference Rejection / Mirror Surface Rejection) function means it ignores reflections from shiny objects behind the reflector — useful on conveyors where glossy packaging or metal parts might otherwise cause false triggers. Sensing distance is 0 m to 2.5 m when paired with the E39-R1 reflector, and the standard sensing object is an opaque target 75 mm diameter minimum. ## Output and wiring Control output is a relay rated 0 to 3 A load current. That's a dry contact — universal voltage, no polarity, and it can switch a contactor coil, a solenoid valve, or an indicator lamp directly. No need for an interposing relay for most panel loads under 3 A.","metaTitle":"Omron E3JK-R2M1 Retro-reflective Sensor, Red LED 660nm, 2.5m","metaDescription":"Omron E3JK-R2M1 retro-reflective photoelectric sensor with M.S.R. function. Red LED 660nm, sensing distance 0 to 2.5 m (with E39-R1), relay output 3 A. Mature lifecycle, sourced to","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"Light source":"Red LED (660nm)","Sensing method":"Retro-reflective with M.S.R. function","Shipping Weight":"1.2 kg","lifecycle_stage":"mature","Sensing distance":"0 m to 2.5 m (When using the E39-R1)","Standard sensing object":"Opaque: 75 mm dia. Min.","Control output (Output type)":"Relay output","Control output (Load current)":"0 to 3 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$58.00","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/E3JK-R2M1/alternatives.json"},"ai":{"faq":[{"question":"What is the light source of the E3JK-R2M1?","answer":"Red LED at 660 nm — visible red, which makes alignment and troubleshooting easier than infrared."},{"question":"What is the sensing method of the E3JK-R2M1?","answer":"Retro-reflective with M.S.R. function. The sensor emits light to a reflector and detects the reflected beam; the M.S.R. function rejects false signals from shiny objects behind the reflector."},{"question":"Will the E3JK-R2M1 drop into a panel specified around the E3Z-T61-L DC12-24?","answer":"No. The E3Z-T61-L is a through-beam sensor with separate emitter and receiver, NPN output, and infrared light. The E3JK-R2M1 is a retro-reflective sensor with relay output and visible red LED. Different mounting, wiring, and reflector requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/E3JK-R2M1","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/omron/E3JK-R2M1 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}}