Overview600 W The B744VL is a TRIDUCER ® Multisensor featuring depth, speed, and temperature in a single housing. The 50/200 kHz, dual-frequency, single, ceramic element provides great target detail in shallow water at 200 kHz and good deep-water bottom tracking at 50 kHz. The B744VL’s extended stem-length has the extra height needed for steep-deadrise vessels or thick, cored-fiberglass or wood hulls. The required High-performance Fairing gives excellent results at speeds up to 30 knots (34 MPH).Specifications Acoustic Window Urethane Common Use Leisure/Yachting, Fishing Conventional Beam 45°/12° Frequency 50/200 Khz Functions Depth, Speed, Temperature Hole Size 51 mm (2") Housing Bronze Hull Material Fiberglass or wood Max Deadrise Up to 24° with fairing Max Deadrise Angle 24° Max Depth Low frequency- 366 m (1200'), High frequency- 213 m (700') Max Vessel LOA Up to 9 m (30') Mounting Style Thru-Hull with Fairing Power Rating 600 W Product Family Marine Retractable housing Yes Single or Dual Frequency Conventional Dual Frequency Tilted Element No Usable Shaft Length 140 mm (5.50") Weight 2.5 kg (5.5 lb.) FAQs What type of installation does the B744VL use?It uses a thru-hull mounting style with the fairing. How does the housing prevent water ingress during maintenance?A patented valve assembly prevents water from rushing in when the insert is removed for cleaning or storage. Is the transducer retractable for maintenance?Yes, it is a retractable housing allowing insert removal. What is the maximum hull deadrise supported with the fairing?It is suitable for hull deadrise angles up to 24° when installed with the fairing. Is the B744VL suitable for use with cored or thick hulls?Yes, its extended stem-length allows mounting into thicker or high deadrise hulls. What fishfinders is the B744VL compatible with?It is ideal for all 600 W fishfinders, requiring only a single hole in the hull. What is the speed operating range for the speed sensor?The speed sensor operates from 1 knot to 45 knots (1 MPH to 52 MPH). How is water prevented from entering when the insert is removed?A patented self-closing sea valve reduces water flow into the hull during insert removal. Who do I contact for help with installation, servicing or advice?Contact the SailRACE team — as certified marine experts we're happy to help with product selection, installation and after-sales servicing, before and after your purchase. {"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{"@type": "Question", "name": "What type of installation does the B744VL use?", "acceptedAnswer": {"@type": "Answer", "text": "It uses a thru-hull mounting style with the fairing."}}, {"@type": "Question", "name": "How does the housing prevent water ingress during maintenance?", "acceptedAnswer": {"@type": "Answer", "text": "A patented valve assembly prevents water from rushing in when the insert is removed for cleaning or storage."}}, {"@type": "Question", "name": "Is the transducer retractable for maintenance?", "acceptedAnswer": {"@type": "Answer", "text": "Yes, it is a retractable housing allowing insert removal."}}, {"@type": "Question", "name": "What is the maximum hull deadrise supported with the fairing?", "acceptedAnswer": {"@type": "Answer", "text": "It is suitable for hull deadrise angles up to 24° when installed with the fairing."}}, {"@type": "Question", "name": "Is the B744VL suitable for use with cored or thick hulls?", "acceptedAnswer": {"@type": "Answer", "text": "Yes, its extended stem-length allows mounting into thicker or high deadrise hulls."}}, {"@type": "Question", "name": "What fishfinders is the B744VL compatible with?", "acceptedAnswer": {"@type": "Answer", "text": "It is ideal for all 600 W fishfinders, requiring only a single hole in the hull."}}, {"@type": "Question", "name": "What is the speed operating range for the speed sensor?", "acceptedAnswer": {"@type": "Answer", "text": "The speed sensor operates from 1 knot to 45 knots (1 MPH to 52 MPH)."}}, {"@type": "Question", "name": "How is water prevented from entering when the insert is removed?", "acceptedAnswer": {"@type": "Answer", "text": "A patented self-closing sea valve reduces water flow into the hull during insert removal."}}, {"@type": "Question", "name": "Who do I contact for help with installation, servicing or advice?", "acceptedAnswer": {"@type": "Answer", "text": "Contact the SailRACE team — as certified marine experts we're happy to help with product selection, installation and after-sales servicing, before and after your purchase."}}]}