Battery Monitors & Volt Meters

Sea-Dog Line Dual Round Voltmeter 421616-1This digital dual voltmeter displays voltage for main and auxiliary batteries simultaneously. The compact size allows installation in a wide variety of locations. Red LED display. IP65 rating. Injection molded...

Sea-Dog Line Battery Test Switch-Economy 422020-1Aluminum.

Sea-Dog Line Dual Voltmeter Rocker Switch 421636-1This rocker switch style dual voltmeter monitors and displays the voltage for main and auxiliary batteries simultaneously. Fits into any 13/16" × 1-7/16" rocker switch hole. Digital red LED display. IP65...

Sea-Dog Line Round Digital Voltage Meter 421615-1Compact size allows for installation in a variety of locations - the same round size as a standard 12V receptacle. For interior or fully protected locations only. Volts 4-30. Injection molded nylon...

Blue Sea Systems Meter Mini Oled DC Amps 1732Monitors DC voltage on a bright, waterproof, daylight readable OLED screen.Compact size enables convenient mountingIP66 waterproofReverse polarity protectedMounts in a common 1-1/8 in (29 mm) diameter...

Blue Sea Systems Meter Mini Oled Temp 1741Monitors DC voltage on a bright, waterproof, daylight readable OLED screen.Compact size enables convenient mountingIP66 waterproofReverse polarity protectedMounts in a common 1-1/8 in (29 mm) diameter holeNominal...

Blue Sea Systems Mini Digital Volt Meter 12-24V 1733Monitors DC voltage on a bright, waterproof, daylight readable OLED screen.Compact size enables convenient mountingIP66 waterproofReverse polarity protectedMounts in a common 1-1/8 in (29 mm) diameter...

Blue Sea Systems Monitor M2 Oled DC Amperage 1832The 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 Circuit Relay (ECR) which...

Blue Sea Systems Monitor M2 Oled DC Voltage 1833The 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 Circuit Relay (ECR) which can...

Blue Sea Systems Volt Test Panel 3 Bank Analog 80158-16 VDC Voltmeter with a 3 position switch for multiple battery banks. Full size 2-3/4" meter.

Sea-Dog Line Battery Monitor with Expanded 423112This panel features an expanded scale, simplified color band meter for accurate battery condition of two separate batteries. Operation is controlled by a 3 position rocker switch, allowing independent...

Sea-Dog Line Round Digital Voltage/Ampmeter 421625-1Compact size allows for installation in a variety of locations - the same round size as a standard 12V receptacle. For interior or fully protected locations only. Volts 4-30. Injection molded nylon...