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sentry (plural sentries) 1  A guard, particularly on duty at the entrance to a military base. ( 2 uncountable) Sentry duty; time spent being a sentry. ( 3 nautical) A form of drag to be towed underwater, which on striking bottom is upset and rises to the surface.
All Sentry Products are American made being produced exclusively in Santa Clara, California. In order to maintain quality control, final assembly and testing is performed at our facilities. Sentry Products has a reputation of standing behind our products. The warranty on all Sentry Products is 2 years.