GRI DS-03-W Short Roller Ball, Open/Closed Loop, Reed Form, SPDT, 5W, 12" Wire Leads, White

A compact, installer-friendly magnetic contact built for reliable intrusion detection in confined spaces. The George Risk Industries DS-03-W Short Roller Ball ball transfer switch combines a rolling ball reed form with a flanged collar to deliver smooth, 360° actuation and fewer false alarms — ideal for security, surveillance and monitoring applications. Its short body profile reduces the need for deep drilling, making it perfect for retrofit door frames and shallow window tracks. The DS-03-W supports open and closed loop configurations and SPDT contacts, includes an end-of-line (EOL) resistor for easy alarm panel integration, and features 12" pre-wired leads for fast hookups. With a low 5W power draw and robust retention collar, this GRI magnetic contact offers reliable performance and a discreet white finish that blends into most frames. Backed by a lifetime warranty, the DS-03-W simplifies installs while improving long-term system reliability. Add the DS-03-W to your next intrusion detection or access control project for faster installs and dependable monitoring — ideal for doors and approved window track locations.

• Single‑mount, low‑profile design reduces SKUs and speeds installation for tight door and window frames
• 360° roller ball actuation for smooth travel, fewer false trips and extended service life
• Short body profile minimizes drilling depth — ideal for shallow frames and retrofit jobs
• Hybrid SPDT reed form with open/closed loop plus built‑in EOL resistor for seamless alarm panel integration
• 12" pre-wired leads and low 5W draw simplify wiring and reduce labor time on site
• Flanged collar provides positive retention and a discreet white finish; backed by a lifetime warranty