The Furuno 525STID-PWD Plastic Transom Mount Transducer combines depth sounder, speed sensor, and water temperature monitoring in one convenient transom-mounted package, delivering professional-grade performance for recreational and light commercial vessels. Built on the proven Airmar P66 platform, this 600-watt multisensor features dual frequency operation (50/200 kHz) with kick-up protection and tool-free removal for easy maintenance and winter storage.

Key Features & Benefits

• Triple-Sensor Design: Measures depth, boat speed through water, and water temperature in single transom installation
• High-Power Performance: 600-watt power rating ensures strong sonar returns in challenging conditions and deep water
• Dual Frequency Operation: 50/200 kHz frequencies provide versatile depth and fish detection capabilities
• Kick-Up Protection: Spring-loaded bracket prevents damage from underwater obstacles and impacts
• Tool-Free Removal: Quick-release system allows transducer removal without tools for storage and maintenance
• Hydrodynamic Design: Streamlined plastic housing maintains accuracy at high speeds up to 40+ knots
• Removable Speed Assembly: Paddlewheel speed sensor can be serviced independently for optimal performance
• Professional Cable System: 30-foot marine-grade cable with 10-pin Furuno connector

Technical Specifications

Installation & Mounting Features

• Transom Compatibility: Accommodates transom angles from 2° to 20° with optional shimming
• Standard Installation: Designed for typical 13° transom angle without modifications
• High-Speed Configuration: Proper angle ensures paddlewheel contact at speeds above 20 knots
• Waterflow Channel: Recessed design protects paddlewheel from debris and damage
• Spring-Loaded Bracket: Kick-up mechanism prevents transducer damage from impacts
• Quick Release: Tool-free removal system for seasonal storage and maintenance

Performance Characteristics

Optimized for diverse fishing and navigation applications:

• Deep Water Capability: 50 kHz frequency penetrates to 1200+ feet for offshore fishing
• High-Resolution Detail: 200 kHz provides sharp bottom definition and fish separation
• Speed Accuracy: Paddlewheel sensor delivers precise boat speed through water
• Temperature Monitoring: Fast-response temperature sensor for fishing and navigation
• High-Speed Performance: Maintains readings and accuracy up to 40+ knots
• Multi-Application Use: Suitable for fishing, cruising, and light commercial applications

Compatible Applications

• Recreational Fishing: Inshore and nearshore fishing with precise depth and fish detection
• Cruising & Navigation: Accurate depth information for safe harbor entry and anchoring
• Trolling Operations: Precise speed control for optimal lure presentation
• Bass Fishing: High-resolution fish detection and structure identification
• Saltwater Applications: Durable construction resists corrosion and marine growth
• Light Commercial Use: Professional performance for charter and guide boats

System Compatibility

Designed for Furuno marine electronics with 10-pin connectivity:

• FCV Series Fishfinders: Direct connection to modern Furuno sonar systems
• GP Series Chartplotters: Integration with combination GPS/fishfinder units
• NavNet Systems: Compatible with multi-function display systems
• Standalone Sounders: Works with dedicated fishfinder units
• Multi-Display Systems: Shares data with multiple connected instruments

Installation Advantages

• No Hull Penetration: Transom mounting eliminates through-hull installation complexity
• Easy Maintenance: Above-waterline location allows service without hauling vessel
• Seasonal Storage: Quick-release system enables winter removal for protection
• Upgrade Friendly: Simple installation makes system upgrades straightforward
• Rental/Charter Suitable: Easy installation and removal for temporary setups

Maintenance & Service

• Paddlewheel Service: Removable speed assembly allows cleaning and maintenance
• Seasonal Care: Easy removal prevents freeze damage in cold climates
• Antifouling Compatible: Plastic surfaces accept marine antifouling treatments
• Impact Protection: Kick-up bracket reduces damage from debris and grounding
• Long-Term Durability: Quality construction ensures years of reliable operation

What's Included

• 525STID-PWD Plastic Transom Mount Transducer (Airmar P66)
• Spring-loaded kick-up mounting bracket
• Removable paddlewheel speed sensor assembly
• 30-foot marine-grade cable with 10-pin connector
• Mounting hardware and installation instructions
• Transom angle shim for non-standard installations

Professional Installation Available

While this transom-mount design is suitable for DIY installation, professional installation ensures optimal placement, proper electrical connections, and system calibration for peak performance.

Frequently Asked Questions