Sentry

Sentry (by Professional Mariner) is a leader in high-capacity marine battery charging and power conversion, designed for the heavy-duty requirements of yachts and commercial vessels. Their chargers feature advanced multi-stage charging profiles to ensure battery longevity and are built with rugged, marinized internal components to survive high-vibration engine rooms. Sentry systems are known for their reliability and ability to handle wide fluctuations in shore power voltage. At Freeport Marine Supply, we carry Sentry products to provide your vessel with a dependable, professional-grade electrical foundation for all your onboard DC systems.