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Original price $29.99
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Current price $20.99

Blue Sea 1820 Submersible Temperature Sensor [1820]

in stock

1820 Submersible Temperature SensorFeatures: General temperature sensor designed to work for most applications. Easy double-sided tape installatio...

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Original price $29.99
Original price $29.99 - Original price $29.99
Original price $29.99
Current price $20.99
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Current price $20.99
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Original price $23.99
Original price $23.99 - Original price $23.99
Original price $23.99
Current price $16.99
$16.99 - $16.99
Current price $16.99

Blue Sea 1821 Universal Temperature Sensor [1821]

in stock

Universal Temperature SensorUse with the P12 Charger, M2 OLED, and Mini OLED Meters Includes double-sided tape Waterproof design Temperature Ran...

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Original price $23.99
Current price $16.99
$16.99 - $16.99
Current price $16.99
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Original price $499.99
Original price $499.99 - Original price $499.99
Original price $499.99
Current price $337.99
$337.99 - $337.99
Current price $337.99

Blue Sea 1830 M2 DC SoC State of Charge Monitor [1830]

in stock

M2 DC SoC State of Charge MonitorAccurately measure and monitor the state-of-charge of your batteries. Supports programmable shunt ratios.Features...

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Original price $499.99
Original price $499.99 - Original price $499.99
Original price $499.99
Current price $337.99
$337.99 - $337.99
Current price $337.99
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Original price $499.99
Original price $499.99 - Original price $499.99
Original price $499.99
Current price $337.99
$337.99 - $337.99
Current price $337.99

Blue Sea 1832 M2 DC Ammeter [1832]

Out of stock

M2 DC AmmeterMonitors DC Amperage with large, bright display. Accurately measure and monitor the amperage of your DC system. (measures 2 circuits)...

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Original price $499.99
Original price $499.99 - Original price $499.99
Original price $499.99
Current price $337.99
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Current price $337.99
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Original price $446.99
Original price $446.99 - Original price $446.99
Original price $446.99
Current price $301.99
$301.99 - $301.99
Current price $301.99

Blue Sea 1833 M2 DC Voltmeter [1833]

in stock

M2 DC VoltmeterMonitors DC Voltage on large, bright display. Accurately measures and monitors the voltage of up to three batteries.Features: Auto...

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Original price $446.99
Original price $446.99 - Original price $446.99
Original price $446.99
Current price $301.99
$301.99 - $301.99
Current price $301.99
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Original price $451.99
Original price $451.99 - Original price $451.99
Original price $451.99
Current price $305.99
$305.99 - $305.99
Current price $305.99

Blue Sea 1836 M2 AC Ammeter [1836]

Out of stock

M2 AC AmmeterMonitors AC Amperage on large, bright display. Supports programmable current transformer ratios. Accurately measure and alarm the amp...

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Original price $451.99
Original price $451.99 - Original price $451.99
Original price $451.99
Current price $305.99
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Current price $305.99
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Original price $498.99
Original price $498.99 - Original price $498.99
Original price $498.99
Current price $336.99
$336.99 - $336.99
Current price $336.99

Blue Sea 1837 M2 AC Voltmeter [1837]

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M2 AC VoltmeterMonitors AC Voltage on large, bright display. Accurately measure and monitors the voltage of your AC system. (measures 2 independen...

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Original price $498.99
Original price $498.99 - Original price $498.99
Original price $498.99
Current price $336.99
$336.99 - $336.99
Current price $336.99
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Original price $527.99
Original price $527.99 - Original price $527.99
Original price $527.99
Current price $356.99
$356.99 - $356.99
Current price $356.99

Blue Sea 1838 M2 AC Multimeter [1838]

Out of stock

M2 AC MultimeterMonitors AC Amps, Volts, Hzs on large, bright display. Supports programmable current transformer ratios. Accurately measure and mo...

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Original price $527.99
Original price $527.99 - Original price $527.99
Original price $527.99
Current price $356.99
$356.99 - $356.99
Current price $356.99
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Original price $499.99
Original price $499.99 - Original price $499.99
Original price $499.99
Current price $337.99
$337.99 - $337.99
Current price $337.99

Blue Sea 1839 M2 OLED Tank Monitor [1839]

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M2 OLED Tank MonitorThe M2 Organic LED Digital Monitor measures essential electrical system parameters with adjustable alarms and an auto-dimming ...

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Original price $499.99
Original price $499.99 - Original price $499.99
Original price $499.99
Current price $337.99
$337.99 - $337.99
Current price $337.99
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Original price $498.99
Original price $498.99 - Original price $498.99
Original price $498.99
Current price $336.99
$336.99 - $336.99
Current price $336.99

Blue Sea 1842 M2 OLED Digital Bilge Meter [1842]

Only 1 left!

1842 M2 OLED Digital Bilge MeterThe M2 Organic LED Digital Monitor measures essential electrical system parameters with adjustable alarms and an a...

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Original price $498.99
Original price $498.99 - Original price $498.99
Original price $498.99
Current price $336.99
$336.99 - $336.99
Current price $336.99
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Original price $650.99
Original price $650.99 - Original price $650.99
Original price $650.99
Current price $439.99
$439.99 - $439.99
Current price $439.99

Blue Sea 1850 M2 Vessel Systems Monitor [1850]

in stock

1850 M2 Vessel Systems MonitorPerforms comprehensive monitoring of four critical systems in one compact organic LED digital monitor.DC System Moni...

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Original price $650.99
Original price $650.99 - Original price $650.99
Original price $650.99
Current price $439.99
$439.99 - $439.99
Current price $439.99
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Original price $20.99
Original price $20.99 - Original price $20.99
Original price $20.99
Current price $14.99
$14.99 - $14.99
Current price $14.99

Blue Sea 2001 Power Post High Amperage Cable Connector 1/4" Stud [2001]

in stock

PowerPost High Amperage Cable Connector 1/4" StudFeatures: Connects high amperage cables securely Glass-Reinforced Nylon 48 Volts DC Maximum Not r...

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Original price $20.99
Current price $14.99
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Current price $14.99
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Original price $19.99
Original price $19.99 - Original price $19.99
Original price $19.99
Current price $13.99
$13.99 - $13.99
Current price $13.99

Blue Sea 2002 PowerPost High Amperage Cable Connector 5/16" Stud [2002]

in stock

2002 PowerPost High Amperage Cable Connector 5/16" Stud Insulated single stainless steel stud terminates multiple large conductors.Features: Conne...

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Original price $19.99
Original price $19.99 - Original price $19.99
Original price $19.99
Current price $13.99
$13.99 - $13.99
Current price $13.99
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Original price $19.99
Original price $19.99 - Original price $19.99
Original price $19.99
Current price $13.99
$13.99 - $13.99
Current price $13.99

Blue Sea 2003 PowerPost High Amperage Cable Connector 3/8" Stud [2003]

in stock

2003 PowerPost High Amperage Cable Connector 3/8" StudInsulated single stainless steel stud terminates multiple large conductors.Features: Connect...

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Original price $19.99
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Original price $19.99
Current price $13.99
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Original price $12.99
Original price $12.99 - Original price $12.99
Original price $12.99
Current price $8.99
$8.99 - $8.99
Current price $8.99

Blue Sea 2010 PowerPost High Amperage Cable Connector #10 Stud [2010]

in stock

PowerPost High Amperage Cable Connector #10 StudFeatures:  Insulated single stainless steel stud terminates multiple large conductors Connects hig...

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Original price $12.99
Original price $12.99 - Original price $12.99
Original price $12.99
Current price $8.99
$8.99 - $8.99
Current price $8.99
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Original price $12.99
Original price $12.99 - Original price $12.99
Original price $12.99
Current price $8.99
$8.99 - $8.99
Current price $8.99

Blue Sea 2011 PowerPost Mini High Amperage Cable Connector - 1/4" Stud [2011]

in stock

2011 PowerPost Mini High Amperage Cable Connector - 1/4" StudInsulated single stainless steel stud terminates multiple large conductors.Features: ...

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Original price $12.99
Original price $12.99 - Original price $12.99
Original price $12.99
Current price $8.99
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Current price $8.99
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Original price $31.99
Original price $31.99 - Original price $31.99
Original price $31.99
Current price $21.99
$21.99 - $21.99
Current price $21.99

Blue Sea 2016 Dual PowerPost Cable Connectors - 2 X 5/16" [2016]

in stock

Dual PowerPost Connectors Designed for connecting high amp conductors Includes one black and one red insulator WARNING: This product can expose y...

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Original price $31.99
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Original price $31.99
Current price $21.99
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Current price $21.99
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Original price $31.99
Original price $31.99 - Original price $31.99
Original price $31.99
Current price $21.99
$21.99 - $21.99
Current price $21.99

Blue Sea 2017 Dual PowerPost Cable Connectors - 2 x 3/8" [2017]

in stock

Dual PowerPost Connectors Designed for connecting high amp conductors Includes one black and one red insulator WARNING: This product can expose y...

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Original price $31.99
Original price $31.99 - Original price $31.99
Original price $31.99
Current price $21.99
$21.99 - $21.99
Current price $21.99
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Original price $31.99
Original price $31.99 - Original price $31.99
Original price $31.99
Current price $21.99
$21.99 - $21.99
Current price $21.99

Blue Sea 2018 Dual PowerPost Cable Connectors - 1 X 5/16" - 1 X 3/8" [2018]

in stock

Dual PowerPost Connectors Designed for outboard engine installation when factory cables need to be extended Includes one black and one red insula...

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Original price $31.99
Original price $31.99 - Original price $31.99
Original price $31.99
Current price $21.99
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Current price $21.99
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Original price $34.99
Original price $34.99 - Original price $34.99
Original price $34.99
Current price $23.99
$23.99 - $23.99
Current price $23.99

Blue Sea 2019 PowerBar Common BusBar - Dual 3/8" x 16 [2019]

in stock

PowerBar Common BusBarTerminal Studs: 2x3/8"-16Provides compact high-ampere busing with 3/8" terminal studsWARNING: This product can expose you to...

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Original price $34.99
Original price $34.99 - Original price $34.99
Original price $34.99
Current price $23.99
$23.99 - $23.99
Current price $23.99
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Original price $25.99
Original price $25.99 - Original price $25.99
Original price $25.99
Current price $17.99
$17.99 - $17.99
Current price $17.99

Blue Sea 2020 PowerBar Dual BusBar - Two 3/8"-16 Studs [2020]

in stock

PowerBar Dual BusBar - Two 3/8"-16 StudsProvides compact high-ampere busing with 3/8" terminal studsSpecifications: Maximum Amperage: 200A Maximu...

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Original price $25.99
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Original price $25.99
Current price $17.99
$17.99 - $17.99
Current price $17.99
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Original price $36.99
Original price $36.99 - Original price $36.99
Original price $36.99
Current price $25.99
$25.99 - $25.99
Current price $25.99

Blue Sea 2101 PowerPost Plus Cable Connector - 1/4" Stud [2101]

in stock

2101 PowerPost Plus Cable Connector - 1/4" StudEnables connection of multiple smaller wires in spaces where a traditional bus bar may not fit.Feat...

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Original price $36.99
Original price $36.99 - Original price $36.99
Original price $36.99
Current price $25.99
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Current price $25.99
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Original price $36.99
Original price $36.99 - Original price $36.99
Original price $36.99
Current price $25.99
$25.99 - $25.99
Current price $25.99

Blue Sea 2102 PowerPost Plus Cable Connector - 5/16" Stud [2102]

in stock

2102 PowerPost Plus Cable Connector - 5/16" StudEnables connection of multiple smaller wires in spaces where a traditional bus bar may not fit.Fea...

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Original price $36.99
Original price $36.99 - Original price $36.99
Original price $36.99
Current price $25.99
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Current price $25.99
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Original price $36.99
Original price $36.99 - Original price $36.99
Original price $36.99
Current price $25.99
$25.99 - $25.99
Current price $25.99

Blue Sea 2103 PowerPost Plus Cable Connector 3/8" Stud [2103]

in stock

2103 PowerPost Plus Cable Connector 3/8" Stud Enables connection of multiple smaller wires in spaces where a traditional bus bar may not fit.Featu...

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Original price $36.99
Original price $36.99 - Original price $36.99
Original price $36.99
Current price $25.99
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Current price $25.99
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