GRI 140T-12-B 3/4" Switch and 3/8" Magnet Recessed Switch Set, Standard Gap 1/2"+, SPDT, Brown

For secure, professional perimeter protection, the George Risk Industries recessed magnetic contact delivers reliable door and window monitoring in commercial and residential security systems. The GRI 140T-12-B magnetic contact set is engineered for concealed installations — the 3/4" switch bore eases wiring and servicing while the 3/8" magnet allows offset placement in thick frames. With SPDT (Form C) contacts and a 0.5" standard gap, this contact set provides consistent performance for intrusion detection, access control and surveillance integration. Hermetically sealed contacts and plated components minimize sticking or freezing, improving uptime in varied environments. Installers appreciate the press-fit, screw terminal or leaded termination options and the availability of longer leads or jacketed cable for flexible wiring runs. Designed for wooden or aluminum frames and backed by a limited lifetime warranty, the 140T-12-B is ideal for retail, office, healthcare and multi-family housing security projects. Specify George Risk Industries magnetic contacts for dependable monitoring and simple maintenance — order now or contact us to configure leads and magnet options for your next installation.

• Concealed, professional installations: recessed 3/4" switch and 3/8" magnet allow clean, tamper-resistant door and window mounting for commercial sites.
• Reliable perimeter monitoring: SPDT contact with a 0.5" standard gap provides consistent, low-false-alarm performance for security and surveillance systems.
• Service-friendly design: larger switch bore simplifies wire routing and replacement, reducing installation time and maintenance costs.
• Durable, weather-resistant construction: hermetically sealed contacts and plated parts resist sticking or freezing for long-term reliability.
• Flexible connectivity: available with 12" #22 AWG leads or screw terminals and options for extended leads, zip cord or jacketed cable to fit any installation.