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![Blue Sea 1821 Universal Temperature Sensor [1821]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/5919/7239/64340XL__07821.1734064900.jpg?c=1 "Blue Sea 1821 Universal Temperature Sensor [1821]")
Blue Sea 1821 Universal Temperature Sensor [1821]
MSRP: $19.87$13.99Universal 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... -
![Blue Sea 1830 M2 DC SoC State of Charge Monitor [1830]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/4209/5524/54762XL__71578.1734060789.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]
MSRP: $364.20$303.99M2 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... -
![Blue Sea 1832 M2 DC Ammeter [1832]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/4210/5525/54764XL__39990.1734060792.jpg?c=1 "Blue Sea 1832 M2 DC Ammeter [1832]")
Blue Sea 1832 M2 DC Ammeter [1832]
MSRP: $364.20$303.99M2 DC AmmeterMonitors DC Amperage with large, bright display. Accurately measure and monitor the amperage of your DC system. (measures 2 circuits) Supports programmable shunt ratios. Features:... -
![Blue Sea 1833 M2 DC Voltmeter [1833]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/4211/5526/54765XL__36224.1734060794.jpg?c=1 "Blue Sea 1833 M2 DC Voltmeter [1833]")
Blue Sea 1833 M2 DC Voltmeter [1833]
MSRP: $324.44$271.99M2 DC VoltmeterMonitors DC Voltage on large, bright display. Accurately measures and monitors the voltage of up to three batteries.Features: Auto-dimming, bright OLED display is easy to read Easy to... -
![Blue Sea 1836 M2 AC Ammeter [1836]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/4212/5527/54768XL__46057.1734060796.jpg?c=1 "Blue Sea 1836 M2 AC Ammeter [1836]")
Blue Sea 1836 M2 AC Ammeter [1836]
MSRP: $328.87$274.99M2 AC AmmeterMonitors AC Amperage on large, bright display. Supports programmable current transformer ratios. Accurately measure and alarm the amperage of your AC system. (measures 2 independent... -
![Blue Sea 1838 M2 AC Multimeter [1838]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/4214/5529/54771XL__20400.1734060801.jpg?c=1 "Blue Sea 1838 M2 AC Multimeter [1838]")
Blue Sea 1838 M2 AC Multimeter [1838]
MSRP: $384.59$320.99M2 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... -
![Blue Sea 1839 M2 OLED Tank Monitor [1839]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/5920/7240/64341XL__91838.1734064903.jpg?c=1 "Blue Sea 1839 M2 OLED Tank Monitor [1839]")
Blue Sea 1839 M2 OLED Tank Monitor [1839]
MSRP: $364.20$303.99M2 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... -
![Blue Sea 1842 M2 OLED Digital Bilge Meter [1842]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/6968/8288/68733XL__15032.1734078426.jpg?c=1 "Blue Sea 1842 M2 OLED Digital Bilge Meter [1842]")
Blue Sea 1842 M2 OLED Digital Bilge Meter [1842]
MSRP: $364.20$303.991842 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... -
![Blue Sea 1850 M2 Vessel Systems Monitor [1850]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/8255/9575/74851XL__18084.1734081655.jpg?c=1 "Blue Sea 1850 M2 Vessel Systems Monitor [1850]")
Blue Sea 1850 M2 Vessel Systems Monitor [1850]
MSRP: $447.73$340.991850 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... -
![Blue Sea 2001 Power Post High Amperage Cable Connector 1\/4" Stud [2001]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/450/1759/13629XL__04320.1734051759.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]
MSRP: $17.64$11.99PowerPost 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... -
![Blue Sea 2002 PowerPost High Amperage Cable Connector 5\/16" Stud [2002]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/488/1797/13951XL__77399.1734051851.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]
MSRP: $17.64$11.992002 PowerPost High Amperage Cable Connector 5/16" Stud Insulated single stainless steel stud terminates multiple large conductors.Features:Connects high amperage cables securelyStud... -
![Blue Sea 2003 PowerPost High Amperage Cable Connector 3\/8" Stud [2003]](https://cdn11.bigcommerce.com/s-oeov1ovydn/images/stencil/590x590/products/487/1796/13950XL__26184.1734051849.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]
MSRP: $17.64$11.992003 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"...