GRI DP-250-BL Dummy Plug, 1/4" Diameter, Black

Keep unused contact inputs sealed and professional-looking with the George Risk Industries DP-250-BL Dummy Plug. Designed as a contact magnet accessory, this 1/4" diameter dummy plug provides a quick, reliable way to protect and conceal open sensor ports on alarm panels, access control devices and surveillance enclosures. The black matte color minimizes visual distraction in camera fields of view and blends seamlessly with rack-mounted and field-installed equipment. Built in the US and offered as part number DP-250-BL, the plug eliminates dust ingress, reduces false alarms from environmental interference, and prevents accidental sensor activation—saving time on troubleshooting and maintenance. Installers appreciate the tool-free fit and standard sizing that simplifies stocking and deployment across security, monitoring and surveillance projects. Ideal for retrofits, commissioning or temporary closures during system upgrades, the GRI DP-250-BL is a small, cost-effective part that improves system reliability and aesthetics. Add these dummy plugs to your next install kit to streamline setup and protect critical contact points.

• Keeps unused contact sensor openings protected and discreet, preventing dust, debris and accidental tampering
• Simple, tool-free installation for fast maintenance and retrofits on security and monitoring systems
• Universal 1/4" diameter fit works with standard contact assemblies to reduce inventory complexity
• Matte black finish blends into camera housings, enclosures and door frames for a professional appearance
• US-made durability from George Risk Industries ensures consistent fit and long service life