Furuno 235DT-PSE Plastic Thru-Hull Digital Depth and Temperature Sensor
Precision Digital Depth and Temperature Monitoring for Marine Navigation
The Furuno 235DT-PSE combines 70+ years of marine electronics expertise in a compact, reliable thru-hull transducer designed for precise depth and temperature monitoring. Built on the proven Airmar P17 housing platform with 200-watt power output and 235kHz frequency, this digital sensor delivers accurate depth readings and water temperature data (±1°F accuracy) essential for safe navigation and successful fishing operations.
Professional-Grade Digital Sensing Technology
High-Precision Digital Processing
235kHz frequency with 200-watt power output provides exceptional bottom detection and depth accuracy, while digital signal processing eliminates noise and interference for consistent, reliable readings in all water conditions.
Dual-Function Monitoring
Simultaneously measures water depth and temperature with professional-grade accuracy (±1°F), providing critical information for navigation safety, fishing success, and marine environmental awareness.
Durable Marine Construction
Robust plastic thru-hull housing based on proven Airmar P17 design withstands harsh marine environments while maintaining optimal acoustic performance and long-term reliability.
Technical Specifications & Performance
Transducer Performance
- Operating Frequency: 235 kHz high-resolution sonar
- Power Rating: 200 watts maximum output
- Beam Angle: 12-degree focused beamwidth
- Temperature Accuracy: ±1°F precision measurement
- Depth Range: Optimized for shallow to medium depths
Construction & Design
- Housing Material: Marine-grade plastic construction
- Installation Type: Thru-hull mount design
- Housing Style: Airmar P17 proven platform
- Dimensions: Compact 4" H x 6" W x 8" L profile
- Weight: 2.2 lbs for easy installation
Connectivity & Interface
- Cable Length: 10-meter (33-foot) connection cable
- Connector Type: Furuno 7-pin weatherproof connector
- Data Output: NMEA 0183 digital format
- Communication: Standard marine electronics interface
- Country of Origin: USA manufactured quality
Advanced Sensor Capabilities
Depth Sensing Technology
The 235kHz frequency with 12-degree beam angle provides precise bottom tracking and depth measurement, offering excellent resolution for navigation safety and bottom structure identification. The focused beam pattern minimizes interference from fish and debris while maintaining accurate depth readings.
Temperature Monitoring
Integrated temperature sensor delivers real-time water temperature data with ±1°F accuracy, crucial for fishing success, engine cooling system monitoring, and marine environment assessment. Temperature data is continuously updated and transmitted via NMEA 0183 protocol.
System Compatibility & Integration
Furuno System Integration
Designed specifically for seamless integration with Furuno NavNet multifunction displays and marine navigation systems. The 7-pin connector ensures reliable, weatherproof connections with compatible Furuno electronics.
Compatible Equipment
- NavNet MFDs: Direct compatibility with Furuno multifunction displays
- Fish Finders: Integration with Furuno sonar systems
- Chart Plotters: Depth and temperature overlay on navigation charts
- NMEA Networks: Standard marine electronics protocol support
Professional Installation Design
Thru-Hull Mounting System
Professional thru-hull installation provides direct water contact for optimal acoustic coupling and accurate readings, while maintaining hull integrity and minimizing drag.
Airmar P17 Housing Compatibility
Based on the proven Airmar P17 housing design, ensuring compatibility with standard through-hull installations and providing time-tested reliability in marine environments.
Simplified Wiring
10-meter cable with 7-pin connector provides flexible routing options while maintaining secure, weatherproof connections to marine electronics systems.
Marine Applications
Recreational Boating
Essential depth and temperature data for safe coastal and inland water navigation, providing peace of mind for family boating adventures.
Sport Fishing
Critical water temperature monitoring helps locate fish and track seasonal migrations, while depth data ensures safe navigation to fishing grounds.
Commercial Applications
Reliable depth and temperature sensing for charter operations, fishing guides, and commercial marine activities requiring accurate environmental data.
Navigation Safety
Continuous depth monitoring provides early warning of shallow water hazards, essential for safe navigation in unfamiliar waters.
Performance Benefits
Digital Signal Processing
- Noise Reduction: Digital processing eliminates electrical interference
- Accurate Readings: Consistent depth and temperature measurements
- Fast Response: Real-time data updates for immediate information
- Reliable Operation: Stable performance in varying water conditions
Marine Environment Advantages
- Corrosion Resistance: Marine-grade plastic construction
- Easy Maintenance: Simple cleaning and inspection procedures
- Long Service Life: Durable components for extended operation
- Professional Support: Furuno's global service network
Frequently Asked Questions
What hull materials are compatible with thru-hull installation?
The plastic thru-hull design is compatible with fiberglass, wood, and composite hull materials. The transducer requires direct water contact for optimal performance and should be installed by a qualified marine technician following proper sealing procedures.
How accurate is the temperature measurement?
The integrated temperature sensor provides ±1°F accuracy, making it suitable for fishing applications, engine cooling monitoring, and marine environmental assessment. Temperature readings are continuously updated and transmitted via NMEA 0183 protocol.
Can this transducer be used for fish finding?
While primarily designed for depth and temperature sensing, the 235DT-PSE can provide basic fish detection capabilities when connected to compatible Furuno fish finders. However, dedicated fish finding transducers offer superior target separation and detail.
What is the effective depth range for this transducer?
The 200-watt power output and 235kHz frequency provide excellent performance in shallow to medium depths, typically effective to several hundred feet depending on bottom composition and water conditions. The focused 12-degree beam ensures accurate readings in most recreational and light commercial applications.
Is professional installation required?
Professional installation is strongly recommended for thru-hull transducers to ensure proper hull penetration, waterproof sealing, and optimal transducer placement. Improper installation can result in water intrusion and compromised vessel safety.
Installation Requirements & Considerations
Pre-Installation Planning
- Verify hull material and thickness compatibility
- Select location away from through-hull fittings and turbulence
- Ensure adequate clearance inside hull for installation
- Plan cable routing to electronics compartment
Installation Best Practices
- Use marine-grade sealants and proper backing plates
- Follow Furuno installation guidelines precisely
- Test system operation before final installation
- Maintain proper cable bend radius throughout installation
Warranty & Professional Support
- Limited 3-Year Warranty: Comprehensive coverage for manufacturing defects
- Furuno Quality Assurance: 70+ years of marine electronics expertise
- Global Service Network: Worldwide dealer support and technical assistance
- Professional Documentation: Complete installation and operation guides
