{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"VL18L-4P324","brand":"SICK","brandSlug":"sick","productSlug":"VL18L-4P324","canonicalUrl":"https://aoctrl.com/sick/VL18L-4P324","factsUrl":"https://aoctrl.com/api/mcp/products/VL18L-4P324","rawCanonicalId":null},"summary":{"shortDescription":"SICK V18 series, cylindrical photoelectric retro-reflective sensor, VL18L-4P324, PNP output, 35 m sensing distance, red laser, IP67, M12 connector.","salesMarkdown":"The SICK VL18L-4P324 is a cylindrical photoelectric retro-reflective sensor from the V18 series, delivering a 35 m sensing distance using a red laser light source. That 35 m range means it can reliably detect a reflector across a wide conveyor gap or through a warehouse aisle, with the laser giving a tight beam for precise alignment. The PNP output switches at 0.63 ms, fast enough for counting or positioning on a moderate-speed line. The 35 m sensing distance is the headline figure, but the minimum sensing distance of 100 mm matters too — it means the sensor needs at least that gap between the lens and the reflector to operate reliably, so you cannot mount it flush against a target. The red laser (visible red) aids setup alignment, but the beam is class 1 or 2 depending on variant; verify local laser safety rules for the installation. ## Integration notes The 18 mm diameter cylindrical body fits standard 18 mm mounting brackets and through-hole panel mounts. Termination is via an M12 4-pin connector — no pigtail, so order a mating cordset separately. The sensor operates on 10–30 VDC and draws 20 mA, well within the capacity of a standard 24 VDC control supply. Switching is selectable Light / Dark ON, giving flexibility for normally-open or normally-closed logic in the safety or control circuit.","metaTitle":"SICK VL18L-4P324 Photoelectric Retro-Reflective Sensor, 35 m","metaDescription":"SICK VL18L-4P324 cylindrical retro-reflective photoelectric sensor, 35 m range, red laser, PNP, IP67, M12 connector, 0.63 ms response. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"Width":"18 mm","Height":"18 mm","Length":"97.7 mm","Series":"V18","Light Type":"Red Laser","Sensor Type":"Photoelectric Retro-Reflective Sensor","Load Current":"20 mA","Response Time":"0.63 ms","Switching Type":"Light / Dark ON","lifecycle_stage":"current","Termination Type":"Connector, M12, 4-Pin","Protection Rating":"IP67","Sensing Distance Max.":"35 m","Sensing Distance Min.":"100 mm","Operating Voltage Max.":"30 V","Operating Voltage Min.":"10 V","Operating Temperature Max.":"55 °C","Operating Temperature Min.":"-15 °C","Optical Sensor Output Type":"PNP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$160.02 – $222.81","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/61165f69930acb04857fb2cd1c4660e3.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/VL18L-4P324/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for the VL18L-4P324?","answer":"The SICK WL9L-3P2432 is a retro-reflective laser sensor with PNP output and an M12 connector, but it is a different form factor (12.2 mm × 52.2 mm rectangular) with a shorter 12 m range and IP69K rating. It will not drop into the same 18 mm cylindrical mounting hole without an adapter, and the 12 m range may not cover the same application. It is a functional alternative only if the mounting and range requirements are re-evaluated."},{"question":"What are the key dimensions of the VL18L-4P324?","answer":"The cylindrical housing is 18 mm in diameter (width and height) and 97.7 mm long. This is a standard 18 mm barrel form factor."},{"question":"Will the VL18L-4P324 drop into a panel specified around the WL9L-3P2432?","answer":"No — the VL18L-4P324 is an 18 mm cylindrical barrel, while the WL9L-3P2432 is a 12.2 mm × 52.2 mm rectangular block. The mounting holes, brackets, and cutouts are incompatible without mechanical adaptation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/sick/VL18L-4P324","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/sick/VL18L-4P324 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}}