GRI TSC-40 3/8" Diameter Recessed Tamper/Plunger Switch, Adjustable, Reed Plunger with Clip Mounted, SPDT

Designed for reliable tamper detection in tight spaces, the George Risk Industries TSC-40 plunger switch delivers robust protection for security and surveillance installations. This recessed plunger switch features a compact 3/8" diameter ideal for narrow door and window frames, while an adjustable plunger (1/4"–1/2") lets technicians fine-tune activation to minimize nuisance triggers. Built with hermetically sealed, stainless steel internals and plated contacts, the TSC-40 resists sticking or freezing and maintains consistent performance in harsh environments—reducing maintenance and total cost of ownership.

The clip-mounted SPDT configuration simplifies installation and seamless integration with intrusion detection, access control and remote monitoring systems. An oval flange provides secure anchoring so the switch stays put through thermal expansion and mechanical stress. Backed by a lifetime limited warranty, the TSC-40 is an ideal choice for installers and integrators seeking a durable, compact tamper switch for door/window sensors, alarm panels and surveillance monitoring. Add the George Risk TSC-40 to your next security project to improve reliability and lower service calls.

• Compact 3/8" recessed design fits narrow door and window frames for discreet tamper detection
• Adjustable plunger (1/4"–1/2") enables precise alignment to reduce false alarms and downtime
• Hermetically sealed stainless steel construction resists sticking, freezing and corrosion for reliable long-term operation
• SPDT clip-mounted configuration speeds installation and integrates easily with security panels and monitoring systems
• Oval flange and secure mounting reduce movement from expansion/contraction, improving tamper resistance