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Blue Sea VSM 422 Vessel Systems Monitor

An All-In-One display system that monitors all those important areas on the Boat. DC & AC Systems, Tank & Bilge Levels.

Key Features 

  • Three intuitive display modes
  • Flexible case design offers three mounting options
  • Fully programmable legends and adjustable alarm functions can be customized to fit every boat
  • Included in retail packaging—head unit, surface mount bezel, surface mount gasket, DC Current Shunt 8255, AC Current Transformer 8256, Battery Temperature Sensor 1820, connectors, and mounting screws
  • Monitors DC systems—voltage, amperage, battery state of charge - amp hours remaining, time remaining, % charge, battery temperature (alarms for all values)
  • Monitors AC systems—voltage, amperage, watts, frequency (alarms for voltage, amperage, and frequency)
  • Monitors tank levels—fuel, water, waste, (alarms for high level waste, low level fuel, and water)
  • Monitors bilge—active, cycle count, and duration (alarms for cycles and duration)


  • Nominal Voltage : 230V AC @ 50Hz, Typical of Europe, 120V AC @ 60Hz, North America
  • Operating Voltage : 0-300V AC 8.5-33. OV DC
  • Current Range : 0-150A AC, 0-500 DC
  • Frequency 40-90Hz
  • Minimum Current Draw : 35mA @ 12V, backlight off 18.8mA @ 24V, backlight off
  • Voltage Accuracy : + / - 0.5%
  • Dimension : Width : 4.50" (102.87mm), Height : 3.00" (76.20mm), Depth O/A : 2.00" (50.87mm)
  • Weight : 4.00lb ( 1.81kg)
Whats in the Box
  • Display
  • Battery temperature sensor
  • DC digital current shunt-500A
  • AC current transformer coil-150A
  • Instructions

Optional Extras ( Available on Website )

  • WW-BSS1811 VSM Petrol Tank Sender 24in (61cm)
  • WW-BSS1810 VSM Diesel/Water/Waste Sender 32in (81cm)




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