GRI DP-500-BL Dummy Self-Locking Plug, 1/2", Black

Keep security and monitoring systems reliable by sealing unused contact points with the George Risk Industries DP-500-BL Dummy Self-Locking Plug. The self-locking plug provides a tamper-resistant seal that prevents dust, moisture and accidental actuator contact, helping to avoid nuisance alarms and maintain accurate surveillance and alarm performance. At 0.5 in diameter and finished in low-profile black, the DP-500-BL fits neatly into most panels and wiring harnesses while remaining simple to install or remove when service is required. Supplied as a reusable 100-pack, this dummy plug delivers cost-effective coverage for commercial security, access control, and monitoring systems that demand consistent contact protection. Manufactured in the US to George Risk Industries quality standards, the DP-500-BL is ideal for installers, integrators and facilities managers who need durable, easy-to-deploy accessories for contact magnets and accessories. Protect critical inputs, reduce downtime, and streamline maintenance—order a 100-pack today for your next security or surveillance installation.

• Secures and protects unused contact openings to prevent dust, moisture and accidental triggers
• Self-locking design reduces tampering and accidental removal for reliable alarm and sensor operation
• Low-profile black 0.5 in diameter blends with enclosures while remaining easy to install and reuse
• Economical 100-pack simplifies large deployments and inventory management for installers and facilities teams
• Made in the US by George Risk Industries for consistent quality across security and surveillance installations