Marine & Boating

Blue Sea m-Series Mini On-Off Battery Switch With Knob - Black Switches a single battery to a single load group Ideal for marine or RV applications Ignition protected - safe for installation aboard...

Blue Sea m-Series Mini On-Off Battery Switch With Knob - Red Switches a single battery to a single load group Ideal for marine or RV applications Ignition protected - safe for installation aboard...

Blue Sea m-Series Mini Selector Battery Switch 309 Amps continuous rated battery switches for simultaneously switching two isolated battery banks or circuits  Simultaneously switches two isolated...

Blue Sea m-Series Mini Selector Battery Switch - Black Switches isolated battery banks to all loads or combines battery banks to all loads Make before break contact design allows switching between...

Blue Sea m-Series Mini Selector Battery Switch - Red Switches isolated battery banks to all loads or combines battery banks to all loads Make before break contact design allows switching between...

Blue Sea m-Series Selector 3 Position Battery Switch Switches isolated battery banks to all loads or combines battery banks to all loads. Make before break contact design allows switching between...

Blue Sea m-Series Single Circuit ON-OFF with Locking Key 300 Amps continuous rating for outboards and small gasoline or diesel engines Tin-plated copper studs for maximum conductivity and corrosion...

Blue Sea M2 AC Multimeter Monitors AC Amps, Volts, Hzs on large, bright display. Supports programmable current transformer ratios. Accurately measure and monitor AC amperage, voltage and Hz...

Blue Seas M2 OLED Digital Voltmeters Blue Seas M2 OLED Digital Voltmeters measure Voltage for either AC or DC systems. BS-1833 monitors DC Voltage of up to four battery banks; where BS-1837 monitors...

Blue Sea M2 DC Ammeter The M2 Monitor includes a MOSFET External Circuit Relay which can be used to control external circuits based on any value measured by the M2. Available to suit either AC or DC...

Blue Sea M2 OLED DC Voltmeter Monitors DC Voltage on large, bright display. Accurately measures and monitors the voltage of up to four battery banks Auto-dimming, bright OLED display is easy to...

Blue Sea M2 OLED Digital AC Bilge Monitor BS-1842B M2 OLED Digital AC Bilge Monitor - Monitors up to 4 bilges The M2 Organic LED Digital Monitor measures essential electrical system parameters with...