BLUE SEA SYSTEMS
VSM Vessel Systems Monitor

Four meters in one, the VSM 422 saves space and costs less than four individual meters! Blue Sea Systems’ Vessel Systems Monitor displays data on four critical ship’s systems (DC and AC electric systems, tank levels, and bilge), helping you identify problems on your boat before they become emergencies. Programmable legends and adjustable alarms help you customize the VSM 422 for your needs. It features three intuitive display modes: Large Font mode for easy reading from a distance, Icon mode for simple visual status, Multi-line Text mode for monitoring five measurements at a glance. Versatile case design offers three mounting options—front panel, rear panel, and 360 panel mounting. Includes DC shunt, AC current transformer, and battery temperature sensor.

Functions Monitored with Ranges: DC voltage for up to three battery banks, amperage, House battery state of charge—amp hours remaining, time remaining, % charge, battery temp; AC voltage, amperage, watts, frequency; fuel, water, waste tank levels; bilge pump—active, cycle count, duration Display Type: Three Display Modes: Large Font Display Mode, Icon Display Mode, Multi-line Text Display Mode Amp Hours: Monitors amperage, amp hours remaining, time remaining, % charge, battery temperature. Monitors AC amperage, watts, frequency. Amps: Amps: 0-150A AC +/- 2.0%, 0-500A DC +/- 1.0% Volts: System voltage: 12 or 24V DC (8.5–33V), 120V AC 60Hz, 240V 60Hz 230V 50Hz. Measures 0–300V +/– 0.5% Draw: Minimum 10mA Dimensions: 3"H x 4 1/2"W x 2"D Approvals: E Marked for ignition protection and electro-magnetic interference Meets CE electro-magnetic interference requirements Waterproof: Rated IP67—withstands water from heavy seas Warranty: Three years

Product Specs

The West Advisor

The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.