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Secure Your Fire System’s Most Vulnerable Point. The Sentry 3/4" Valve Test Port Lock is the ultimate defense against water theft and malicious tampering on fire sprinkler systems. Designed to fit standard 3/4" inspector’s test valves, this heavy-duty locking device prevents unauthorized opening of the test port, ensuring your system remains charged, compliant, and secure. Stop water theft before it starts.
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The Sentry Detector Check Bypass (SDC75-1 and SDC75-2) is designed to keep the pressure on. Proven the most effective product available to prevent the theft of this valve. The SDC75-1 locks the incoming number 1 check valve with test port on. The SDC75-2 locks the number 2 check valve (optional).
