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First line of defense for protecting sensitive on-board marine electronics. Protect your investment with the most advanced Surge Protective Device available on the market today.The hybrid design mitigates electrical surges and filters out ringing transients that can cause both immediate and long-term damage to your marine electronics. ISO 9001 Certified Manufacturing Facility by NOAParallel wired to protect your electrical panel, without draining your boat's batteriesRobust 2 kA per mode Peak Surge Current RatingVoltage Responsive CircuitryTM protects your electrical system from impulse surgesFrequency Responsive CircuitryTM filters out ringing transients, which disrupt and damage sensitive electronicsAll models are encapsulated for a superior watertight seal and vibration resistanceSmall, compact size can be installed virtually anywhere on your boat's electrical system