Blue Sea Systems
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![Blue Sea 1820 Submersible Temperature Sensor [1820]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/47502/51391/38072XL__30545.1739581632.jpg?c=1 "Blue Sea 1820 Submersible Temperature Sensor [1820]")
Blue Sea 1820 Submersible Temperature Sensor [1820]
Blue Sea Systems
MSRP: $29.99$28.991820 Submersible Temperature SensorFeatures:General temperature sensor designed to work for most applications.Easy double-sided tape installationFully Submersible (IP68)Wires connect in either...AM-38072MSRP: $29.99$28.99 -
![Blue Sea 1821 Universal Temperature Sensor [1821]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/52303/57093/64340XL__33355.1739594041.jpg?c=1 "Blue Sea 1821 Universal Temperature Sensor [1821]")
Blue Sea 1821 Universal Temperature Sensor [1821]
Blue Sea Systems
$23.99Universal Temperature SensorUse with the P12 Charger, M2 OLED, and Mini OLED MetersIncludes double-sided tapeWaterproof designTemperature Range: -40°F to 300°F (-40°C to...AM-64340$23.99 -
![Blue Sea 1830 M2 DC SoC State of Charge Monitor [1830]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/50155/54669/54762XL__51764.1739588579.jpg?c=1 "Blue Sea 1830 M2 DC SoC State of Charge Monitor [1830]")
![Blue Sea 1830 M2 DC SoC State of Charge Monitor [1830]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/50155/54670/54762BXL__93433.1739588579.jpg?c=1 "Blue Sea 1830 M2 DC SoC State of Charge Monitor [1830]")
Blue Sea 1830 M2 DC SoC State of Charge Monitor [1830]
Blue Sea Systems
MSRP: $499.99$301.99M2 DC SoC State of Charge MonitorAccurately measure and monitor the state-of-charge of your batteries. Supports programmable shunt ratios.Features: Auto-dimming, bright OLED display is easy to read...AM-54762MSRP: $499.99$301.99 -
![Blue Sea 1837 M2 AC Voltmeter [1837]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/50159/54681/54769XL__10049.1739588594.jpg?c=1 "Blue Sea 1837 M2 AC Voltmeter [1837]")
![Blue Sea 1837 M2 AC Voltmeter [1837]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/50159/54682/54769BXL__67885.1739588595.jpg?c=1 "Blue Sea 1837 M2 AC Voltmeter [1837]")
Blue Sea 1837 M2 AC Voltmeter [1837]
Blue Sea Systems
MSRP: $498.99$300.99M2 AC VoltmeterMonitors AC Voltage on large, bright display. Accurately measure and monitors the voltage of your AC system. (measures 2 independent circuits or 1 double phase circuit)Features:...AM-54769MSRP: $498.99$300.99 -
![Blue Sea 1838 M2 AC Multimeter [1838]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/50160/54684/54771XL__24621.1739588598.jpg?c=1 "Blue Sea 1838 M2 AC Multimeter [1838]")
![Blue Sea 1838 M2 AC Multimeter [1838]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/50160/54685/54771BXL__63269.1739588598.jpg?c=1 "Blue Sea 1838 M2 AC Multimeter [1838]")
Blue Sea 1838 M2 AC Multimeter [1838]
Blue Sea Systems
MSRP: $527.99$318.99M2 AC MultimeterMonitors AC Amps, Volts, Hzs on large, bright display. Supports programmable current transformer ratios. Accurately measure and monitor AC amperage, voltage and Hz. (measures 2...AM-54771MSRP: $527.99$318.99 -
![Blue Sea 1839 M2 OLED Tank Monitor [1839]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/52304/57094/64341XL__94936.1739594043.jpg?c=1 "Blue Sea 1839 M2 OLED Tank Monitor [1839]")
Blue Sea 1839 M2 OLED Tank Monitor [1839]
Blue Sea Systems
MSRP: $499.99$301.99M2 OLED Tank MonitorThe M2 Organic LED Digital Monitor measures essential electrical system parameters with adjustable alarms and an auto-dimming display. The M2 Monitors include a MOSFET External...AM-64341MSRP: $499.99$301.99 -
![Blue Sea 1842 M2 OLED Digital Bilge Meter [1842]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/53502/58436/68733XL__56783.1739597103.jpg?c=1 "Blue Sea 1842 M2 OLED Digital Bilge Meter [1842]")
Blue Sea 1842 M2 OLED Digital Bilge Meter [1842]
Blue Sea Systems
MSRP: $498.99$300.991842 M2 OLED Digital Bilge MeterThe M2 Organic LED Digital Monitor measures essential electrical system parameters with adjustable alarms and an auto-dimming display. The M2 Monitors include a...AM-68733MSRP: $498.99$300.99 -
![Blue Sea 1850 M2 Vessel Systems Monitor [1850]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/55215/60468/74851XL__26114.1739601564.jpg?c=1 "Blue Sea 1850 M2 Vessel Systems Monitor [1850]")
Blue Sea 1850 M2 Vessel Systems Monitor [1850]
Blue Sea Systems
MSRP: $650.99$388.991850 M2 Vessel Systems MonitorPerforms comprehensive monitoring of four critical systems in one compact organic LED digital monitor.DC System Monitoring (up to two batteries)One input monitors the...AM-74851MSRP: $650.99$388.99 -
![Blue Sea 2001 Power Post High Amperage Cable Connector 1\/4" Stud [2001]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/45436/49047/13629XL__97139.1739576350.jpg?c=1 "Blue Sea 2001 Power Post High Amperage Cable Connector 1\/4\" Stud [2001]")
Blue Sea 2001 Power Post High Amperage Cable Connector 1/4" Stud [2001]
Blue Sea Systems
$20.99PowerPost High Amperage Cable Connector 1/4" StudFeatures:Connects high amperage cables securelyGlass-Reinforced Nylon48 Volts DC MaximumNot rated - Amperage flows between terminals stacked on post...AM-13629$20.99 -
![Blue Sea 2002 PowerPost High Amperage Cable Connector 5\/16" Stud [2002]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/45475/49092/13951XL__12727.1739576450.jpg?c=1 "Blue Sea 2002 PowerPost High Amperage Cable Connector 5\/16\" Stud [2002]")
Blue Sea 2002 PowerPost High Amperage Cable Connector 5/16" Stud [2002]
Blue Sea Systems
$19.992002 PowerPost High Amperage Cable Connector 5/16" Stud Insulated single stainless steel stud terminates multiple large conductors.Features:Connects high amperage cables securelyStud...AM-13951$19.99 -
![Blue Sea 2003 PowerPost High Amperage Cable Connector 3\/8" Stud [2003]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/45474/49091/13950XL__84275.1739576448.jpg?c=1 "Blue Sea 2003 PowerPost High Amperage Cable Connector 3\/8\" Stud [2003]")
Blue Sea 2003 PowerPost High Amperage Cable Connector 3/8" Stud [2003]
Blue Sea Systems
$19.992003 PowerPost High Amperage Cable Connector 3/8" StudInsulated single stainless steel stud terminates multiple large conductors.Features:Connects high amperage cables securelyStud dimensions: 3/8"...AM-13950$19.99 -
![Blue Sea 2010 PowerPost High Amperage Cable Connector #10 Stud [2010]](https://cdn11.bigcommerce.com/s-zyjttlwdu2/images/stencil/590x590/products/45722/49378/20208XL__78263.1739577080.jpg?c=1 "Blue Sea 2010 PowerPost High Amperage Cable Connector #10 Stud [2010]")
Blue Sea 2010 PowerPost High Amperage Cable Connector #10 Stud [2010]
Blue Sea Systems
$12.99PowerPost High Amperage Cable Connector #10 StudFeatures: Insulated single stainless steel stud terminates multiple large conductorsConnects high amperage cables securelyStud dimensions: #10-32...AM-20208$12.99