Best Digital Gauges for Boat in 2025
Updated on June 2025
#1
Recommended
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- Includes a speedometer, tachometer, voltmeter, and fuel gauges
- Designed for outboard engine applications
- Comes as a complete 4-gauge kit
- Provides essential engine information
- Compatible with various boat models
- Supports efficient monitoring of boat performance
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- Includes a speedometer, tachometer, voltmeter, and fuel gauges
- Designed for outboard engine applications
- Comes as a complete 4-gauge kit
- Provides essential engine information
- Compatible with various boat models
- Supports efficient monitoring of boat performance
#2
Value for Money
16% Off
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- Yamaha OEM part number: 6Y5-8350T-D1-00
- Compatible with Yamaha marine engines
- Accurate engine RPM readings
- Durable design for long-lasting use
- Easy installation for quick setup
- High-quality materials for reliability
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- Yamaha OEM part number: 6Y5-8350T-D1-00
- Compatible with Yamaha marine engines
- Accurate engine RPM readings
- Durable design for long-lasting use
- Easy installation for quick setup
- High-quality materials for reliability
#3
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- Enables wireless connectivity with the Mercury Marine app
- Stream live engine data, fuel tracking, digital gauges and more to a mobile device
- Track maintenance in the app and even share engine data with a preferred dealer to help make service more convenient
- Plug-and-play under Helm installation for 1-4 Mercury engines; Avator 7.5e installation should be handled by a dealer
- Compatible with Mercury and MerCruiser engines 2004 and newer, 40hp and above; 2022 and newer, 25hp and above; and Avator electric outboards
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- Enables wireless connectivity with the Mercury Marine app
- Stream live engine data, fuel tracking, digital gauges and more to a mobile device
- Track maintenance in the app and even share engine data with a preferred dealer to help make service more convenient
- Plug-and-play under Helm installation for 1-4 Mercury engines; Avator 7.5e installation should be handled by a dealer
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#4
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- Includes six essential gauges: GPS speedometer, tachometer, fuel gauge, water temperature gauge, volt gauge, and oil pressure gauge with seven color backlight options.
- GPS speedometer with a range of 0-80 MPH, tachometer from 0-8000 RPM, volt gauge ranging from 8-16V, fuel gauge indicating E-F with 240-33 ohm resistance, water temperature gauge from 30-250°F (0-120°C), and oil pressure gauge from 0-150 PSI (0-10 BAR).
- Standard gauge sizes: GPS speedometer and tachometer require an 85mm (3 3/8") hole and 55mm (2 3/16") rear clearance, while fuel, water temperature, volt, and oil pressure gauges have a 2-1/16 inch (52mm) diameter.
- Constructed from durable 316L metal, rubber, and plastic materials with scratch-resistant glass lenses; rated IP67 for waterproof and dustproof protection, suitable for a variety of vehicles including cars, boats, trucks, and motorcycles.
- Package includes a complete marine gauge set with GPS antenna, tachometer sensor, water temperature sensor, oil pressure sensor, fuel level sender, and installation instructions.
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- Includes six essential gauges: GPS speedometer, tachometer, fuel gauge, water temperature gauge, volt gauge, and oil pressure gauge with seven color backlight options.
- GPS speedometer with a range of 0-80 MPH, tachometer from 0-8000 RPM, volt gauge ranging from 8-16V, fuel gauge indicating E-F with 240-33 ohm resistance, water temperature gauge from 30-250°F (0-120°C), and oil pressure gauge from 0-150 PSI (0-10 BAR).
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#5
9% Off
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- Provides accurate depth readings from 2.5 to 600 feet on a large in-dash display at speeds up to 60 mph, using a 200 kHz transducer frequency.
- Features ShootThru sonar technology enabling depth measurements through solid fiberglass and up to 1/8-inch aluminum hulls.
- Includes a 3-stage Advanced Warning System with audible alerts, bright red LED warnings, and LCD indicators for alarm conditions.
- Polarized LCD display minimizes glare for clear visibility, with storage sun cover; advanced programming reduces false readings for precise data.
- Manufactured in the USA and overseas, utilizing innovative technology designed with American ingenuity.
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- Provides accurate depth readings from 2.5 to 600 feet on a large in-dash display at speeds up to 60 mph, using a 200 kHz transducer frequency.
- Features ShootThru sonar technology enabling depth measurements through solid fiberglass and up to 1/8-inch aluminum hulls.
- Includes a 3-stage Advanced Warning System with audible alerts, bright red LED warnings, and LCD indicators for alarm conditions.
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#6
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- Includes GPS Speedometer, Tachometer, Fuel Gauge, Water Temperature, Volt, Oil Pressure, and Trim Gauge with 7 color backlight options.
- Speedometer range: 0-80 MPH; Tachometer: 0-8000 RPM; Volt gauge: 8-16V; Fuel gauge: E-F (240-33 ohms); Water Temperature: 30-250°F (0-120°C); Oil Pressure: 0-150 PSI (0-10 BAR); Trim gauge: 0-190 ohms.
- Standard 85mm hole for GPS Speedometer and Tachometer, with a required clearance of 55mm; Other gauges have a diameter of 2-1/16 inches (52mm).
- Constructed from 316L Metal, Rubber, and Plastic with scratch-resistant curved glass lenses; Rated IP67 for waterproof and dustproof integrity.
- Includes GPS Antenna, sensors for Tachometer, Water Temperature, Oil Pressure, Fuel Level Sender, and Installation Instructions.
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- Includes GPS Speedometer, Tachometer, Fuel Gauge, Water Temperature, Volt, Oil Pressure, and Trim Gauge with 7 color backlight options.
- Speedometer range: 0-80 MPH; Tachometer: 0-8000 RPM; Volt gauge: 8-16V; Fuel gauge: E-F (240-33 ohms); Water Temperature: 30-250°F (0-120°C); Oil Pressure: 0-150 PSI (0-10 BAR); Trim gauge: 0-190 ohms.
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#7
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- Constructed from durable ABS plastic and 316 stainless steel, providing excellent resistance to corrosion and wear.
- IP67 waterproof rating with double-layer protection to prevent fogging and water damage.
- Displays a variety of gauge readings including fuel level, speed, oil pressure, and water temperature, suitable for various vehicles.
- Simple installation process, allowing for quick replacement of old instruments without specialized tools.
- Illuminated display for enhanced visibility at night, ensuring safe driving in dark conditions.
- 7-color adjustable backlight for customization, cycling through colors automatically for user preference.
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- Constructed from durable ABS plastic and 316 stainless steel, providing excellent resistance to corrosion and wear.
- IP67 waterproof rating with double-layer protection to prevent fogging and water damage.
- Displays a variety of gauge readings including fuel level, speed, oil pressure, and water temperature, suitable for various vehicles.
- Simple installation process, allowing for quick replacement of old instruments without specialized tools.
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#8
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- 304 stainless steel rims and a glass lens ensure durability and resistance to wear, impact, corrosion, and rust.
- Included in the kit: oil pressure gauge, GPS speedometer, fuel level gauge, water temperature gauge, tachometer, and volt gauge for comprehensive real-time monitoring.
- Compatible with 1 to 9-cylinder gasoline engines, featuring mechanical speedometer cable and ECU or coil-driven tachometer.
- Sturdy materials provide stable operation with clear visibility of data for effective real-time monitoring.
- Classic LED backlit dials with red pointers enhance dashboard aesthetics.
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- 304 stainless steel rims and a glass lens ensure durability and resistance to wear, impact, corrosion, and rust.
- Included in the kit: oil pressure gauge, GPS speedometer, fuel level gauge, water temperature gauge, tachometer, and volt gauge for comprehensive real-time monitoring.
- Compatible with 1 to 9-cylinder gasoline engines, featuring mechanical speedometer cable and ECU or coil-driven tachometer.
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#9
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- Includes six gauges: GPS Speedometer, Tachometer, Fuel Gauge, Water Temperature, Volt Gauge, and Oil Pressure Gauge with a seven-color backlight option.
- GPS Speedometer range: 0-80 MPH; Tachometer range: 0-8000 RPM; Volt range: 8-16V; Fuel Level: E-F with 240-33 ohms; Water Temperature: 30-250°F (0-120°C); Oil Pressure: 0-150 PSI (0-10 BAR).
- Standard 85mm (3 3/8") hole required for GPS Speedometer and Tachometer installation, with a 55mm (2 3/16") rear clearance; other gauges have a diameter of 2-1/16 inch (52mm).
- Constructed from 316L Metal, Rubber, and Plastic with scratch-resistant curved glass lenses; rated IP67 for waterproof and dustproof protection.
- Package includes GPS Antenna, Tachometer Sensor, Water Temperature Sensor, Oil Pressure Sensor, Fuel Level Sender, and installation instructions.
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- Includes six gauges: GPS Speedometer, Tachometer, Fuel Gauge, Water Temperature, Volt Gauge, and Oil Pressure Gauge with a seven-color backlight option.
- GPS Speedometer range: 0-80 MPH; Tachometer range: 0-8000 RPM; Volt range: 8-16V; Fuel Level: E-F with 240-33 ohms; Water Temperature: 30-250°F (0-120°C); Oil Pressure: 0-150 PSI (0-10 BAR).
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#10
23% Off
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- Includes a transom mount transducer.
- Available bezel colors: White, Black, Chrome.
- Available face plate colors: White, Black.
- Provides digital depth readings up to 600 feet.
- Designed with a sealed, water-proof construction.
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- Includes a transom mount transducer.
- Available bezel colors: White, Black, Chrome.
- Available face plate colors: White, Black.
- Provides digital depth readings up to 600 feet.
- Designed with a sealed, water-proof construction.
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