{"product_id":"industrial-laser-ranging-sensor-4-400cm-rs485-modbus-rtu-ip67","title":"Industrial Laser Ranging Sensor (4-400cm, RS485, Modbus-RTU, IP67)","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eLaser Ranging Sensor RS485 (4–400cm) provides precise distance detection from 4 cm to 400 cm with measurement accuracy of ±2 cm. This industrial laser distance sensor integrates an RS485 communication interface and supports the Modbus‑RTU protocol, enabling stable connection with industrial controllers, automation equipment, and embedded monitoring systems. A threaded metal housing with optical filtering cover improves durability while minimizing ambient light interference. Wide input voltage from 6 V to 36 V allows flexible deployment across automation platforms, smart infrastructure, and robotic sensing systems where reliable mid‑range distance measurement and robust environmental resistance are required.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff9c00;\"\u003e\u003cb\u003eNote: \u003c\/b\u003e\u003c\/span\u003e The data will be unstable when measuring black objects.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHigh‑Accuracy Laser Distance Measurement\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA compact laser ranging module measures objects across a 4–400 cm detection range while maintaining ±2 cm accuracy. A controlled emitting angle of 39.6° combined with a 36.5° receiving angle enables reliable object detection across typical automation scenarios. Laser‑based ranging technology provides faster response and improved repeatability compared with traditional ultrasonic sensing, supporting applications such as access control monitoring, obstacle detection systems, and automated equipment positioning where stable mid‑range measurement performance is required.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIndustrial RS485 Communication with Modbus‑RTU\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eAn integrated industrial RS485 communication chip enables reliable long‑distance data transmission and strong resistance to electrical noise. Modbus‑RTU protocol compatibility simplifies integration into PLC systems, industrial gateways, and automation controllers. Configurable baud rates from 2400 to 921600 (default 115200) allow flexible communication setup across different industrial networks. A built‑in alarm output line can trigger a steady low signal when measured distance drops below a configured threshold, enabling direct connection to alarm systems or automation triggers.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRugged Metal Housing with IP67 Protection\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eA threaded metal enclosure with integrated optical protective cover provides strong resistance to vibration, mechanical shock, and environmental interference. The optical structure helps filter ambient light for improved measurement stability in outdoor or industrial environments. IP67 waterproof protection enables dependable operation in dusty or humid installations. Wide input voltage support from 6 V to 36 V further improves adaptability across industrial power systems, robotics platforms, and smart infrastructure installations.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E39034-content1.webp?v=1791669310\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E39034-content2.webp?v=1791669323\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eFigure: Dimension\u003c\/p\u003e\n\u003cp\u003eThis industrial laser distance sensing unit fits automation monitoring, smart waste bin detection, access control safety systems, security alarm triggers, and robotic obstacle avoidance. Reliable RS485 communication and rugged environmental protection make the sensor suitable for industrial control systems, intelligent infrastructure, and embedded monitoring equipment requiring stable mid‑range distance measurement.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLaser ranging detection with 4–400 cm measurement range\u003c\/li\u003e\n\u003cli\u003eWide operating voltage: 6–36 V\u003c\/li\u003e\n\u003cli\u003eRS485 communication interface with Modbus‑RTU protocol\u003c\/li\u003e\n\u003cli\u003eMetal housing with waterproof and shockproof design (IP67)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAccess control and security gate detection\u003c\/li\u003e\n\u003cli\u003eIndustrial automation monitoring\u003c\/li\u003e\n\u003cli\u003eSmart trash can detection systems\u003c\/li\u003e\n\u003cli\u003eRobotic obstacle avoidance\u003c\/li\u003e\n\u003cli\u003eSecurity alarm triggering systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower Supply Voltage: 6-36 V\u003c\/li\u003e\n\u003cli\u003eMeasuring Distance: 4-400 cm\u003c\/li\u003e\n\u003cli\u003eMeasurement Accuracy: ±2 cm\u003c\/li\u003e\n\u003cli\u003eEmitting Angle: 39.6°\u003c\/li\u003e\n\u003cli\u003eReceiving Angle: 36.5°\u003c\/li\u003e\n\u003cli\u003eWorking Current: ＜38mA\u003c\/li\u003e\n\u003cli\u003eCommunication Interface: RS485\u003c\/li\u003e\n\u003cli\u003eCommunication Protocol: Modbus-RTU\u003c\/li\u003e\n\u003cli\u003eWaterproof Rating: IP67\u003c\/li\u003e\n\u003cli\u003eBaud Rate: 2400-921600 optional 115200 (default)\u003c\/li\u003e\n\u003cli\u003eFrequency: 20Hz (default)\u003c\/li\u003e\n\u003cli\u003eWorking Temperature: -20~70°C\u003c\/li\u003e\n\u003cli\u003eSize: 21.5×21×8 mm \/ 0.85×0.83×0.31 inch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eShipping List\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLaser Ranging Sensor RS485 (4-400cm) x1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/wiki.dfrobot.com\/sen0492\/\" target=\"_blank\"\u003eProduct Wiki\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfooter\u003e\u003c\/footer\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":67648226656333,"sku":"E39034-001","price":37.77,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0668\/0641\/5437\/files\/E39034-win1.jpg?v=1791669354","url":"https:\/\/www.mlab.com.au\/products\/industrial-laser-ranging-sensor-4-400cm-rs485-modbus-rtu-ip67","provider":"MLAB","version":"1.0","type":"link"}