GRI DS-03-W Short Roller Ball Switch (10-pack)

The GRI DS‑03‑W Short Roller Ball Switch is a compact magnetic contact switch ideal for intrusion detection systems. Designed for ease of installation, its short body reduces drilling depth while the flanged collar ensures secure mounting. The 360-degree stainless steel roller ball allows actuation from any direction, making it more reliable than traditional plunger-type switches. It features a Form C (SPDT) reed contact, supporting both normally open and normally closed circuits. The switch is hermetically sealed, has plated contacts to prevent sticking or freezing, and comes pre-wired with 12-inch #22 AWG leads for fast setup. Its durable, tamper-resistant design is perfect for residential and commercial alarm applications. Each pack includes 10 switches, and GRI backs them with a lifetime warranty. The DS‑03‑W offers consistent performance even in demanding environments.