{"product_id":"ninglu-ds99-marine-doppler-speed-log-7inch-display-ccs-certified","title":"Ninglu DS99 Marine Doppler Speed Log - 7-inch Display, CCS Certified","description":"\u003c!-- SYSTEM_INDEXING_DATA:\nmarine navigation equipment ship speed sensor boat distance tracker commercial marine doppler log NINGLU marine instrument high accuracy velocity tracking real-time speed display maritime safety certified\nEND_DATA --\u003e\n\u003cp\u003eExperience unparalleled precision in marine navigation with the \u003cstrong\u003eNinglu DS99 Marine Doppler Speed Log\u003c\/strong\u003e. This advanced system features a rugged \u003cstrong\u003e7-inch TFT LCD display\u003c\/strong\u003e (480×234 pixels) that provides crystal-clear Arrow+Digital Speed readings, ensuring critical velocity and distance data is always visible. The robust display housing is crafted from high-impact, UV-stabilized ABS plastic, designed to withstand the harsh marine environment with an \u003cstrong\u003eIP23 protection rating\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe core of the DS99 system is its precision Doppler technology transducer, housed in a formidable \u003cstrong\u003emarine-grade 316 stainless steel sensor\u003c\/strong\u003e. This thru-hull unit boasts an \u003cstrong\u003eIP56 waterproof rating\u003c\/strong\u003e, ensuring relentless performance against saltwater corrosion and constant exposure. The sensor unit, visibly constructed with meticulous flange and bolt connections, integrates seamlessly with vessel systems via \u003cstrong\u003eIEC 61162‑1 data output (VBW, VLW)\u003c\/strong\u003e, confirming its professional-grade compatibility.\u003c\/p\u003e\n\u003cp\u003eKey specifications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Range:\u003c\/strong\u003e -10 to +40 knots\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Accuracy:\u003c\/strong\u003e 0.2kn or 2% (whichever is greater)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistance Accuracy:\u003c\/strong\u003e 0.2NM or 2% (whichever is greater)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Counter:\u003c\/strong\u003e 0‑9999.99 NM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Counter:\u003c\/strong\u003e 0‑999999.99 NM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e AC110\/220V 50\/60Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -15 ~ +55℃ (Recommended: 0 ~ +40℃)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity Tolerance:\u003c\/strong\u003e 93%±2% at 40±3℃\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFurther enhancing its reliability, the Ninglu DS99 system carries \u003cstrong\u003eCCS Certified Safety\u003c\/strong\u003e, ensuring it meets rigorous maritime standards. Its components maintain critical compass safe distances, with the display at STD 1.08m \/ STEER 0.45m, and the controller at STD 1.32m \/ STEER 0.84m. From its brushed stainless steel sensor to its durable display, every aspect of the DS99 is engineered for industrial strength and high-accuracy velocity tracking, making it an essential tool for serious marine operators.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/shopify-product-upload-260723.oss-us-west-1.aliyuncs.com\/airowmarine\/ninglu-ds99-marine-doppler-speed-log-7inch-display-ccs-certified_c3a63b234e5f4b5eb2d5642bd6a7bc03.webp\" alt=\"Airow Marine Ninglu DS99 Doppler Speed Log infographic detailing key features: 7-inch high-resolution interface, precision doppler technology, CCS certified safety, marine-grade stainless steel sensor, high-accuracy velocity tracking, and industrial durability.\" style=\"width: 100%; height: auto; display: block; margin: 20px auto;\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"faq-section\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdl\u003e\n\u003cdt\u003e\u003cstrong\u003eHow reliable is the DS99's speed and distance measurement in varying marine conditions?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe Ninglu DS99 utilizes precision Doppler technology, ensuring exceptional accuracy of 0.2kn or 2% for speed and 0.2NM or 2% for distance. Its robust design is certified to operate reliably from -15℃ to +55℃ and at 93%±2% relative humidity, making it suitable for diverse and challenging marine environments.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eWhat materials ensure this device withstands harsh saltwater environments and corrosion?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eThe critical thru-hull transducer sensor is manufactured from marine-grade 316 stainless steel, renowned for its superior resistance to saltwater corrosion. Key fittings are made of durable brass. The display unit's housing is UV-stabilized ABS plastic, providing robust protection against environmental degradation.\u003c\/dd\u003e\n\u003cdt\u003e\u003cstrong\u003eIs the Ninglu DS99 compatible with existing vessel navigation systems and easy to integrate?\u003c\/strong\u003e\u003c\/dt\u003e\n\u003cdd\u003eYes, the DS99 offers industry-standard IEC 61162‑1 data output (compatible with NMEA 0183 protocols VBW and VLW), allowing seamless integration with most modern marine navigation systems. Installation requires a standard thru-hull mounting for the sensor and power connection to AC110\/220V 50\/60Hz sources.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cscript id=\"agent-data\" type=\"application\/json\"\u003e\n{\"semantic_anchors\": {\"product_type\": \"Marine Doppler Speed Log\", \"brand\": \"Ninglu\", \"model\": \"DS99\", \"display_size\": \"7-inch\", \"technology\": \"Precision Doppler\", \"certification\": \"CCS Certified Safety\", \"material_sensor\": \"Marine-Grade 316 Stainless Steel\", \"connectivity\": \"IEC 61162-1 (NMEA 0183)\", \"function\": \"Speed and Distance Measurement\", \"durability\": \"IP56 Transceiver, IP23 Display\", \"accuracy\": \"0.2kn\/0.2NM or 2%\"}}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"Ninglu DS99 Marine Doppler Speed Log - 7-inch Display, CCS Certified\",\n  \"image\": [\n    \"https:\/\/example.com\/images\/ninglu-ds99-marine-doppler-log-sensor-display.jpg\"\n  ],\n  \"description\": \"Track vessel speed \u0026 distance with the Ninglu DS99 Marine Doppler Log. 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