GRI 4532 W/2.2K Switch Set with 4532 Miniature Overhead Door Switch and 2.2K Ohms Resistor

Designed for reliable overhead door security, the George Risk Industries 4532 W/2.2K magnetic contact delivers rugged, low-maintenance monitoring for commercial and industrial doors. This miniature overhead door switch set includes a supervised 2.2K resistor and a 2.5" standard gap to ensure consistent, tamper-resistant detection for alarm panels, access control and building automation systems. The hermetically sealed, cast-aluminum housing and 2' stainless steel armored cable protect the sensor from dust, moisture and impact—minimizing service calls and downtime in warehouses, loading docks and parking facilities. Plated contacts resist sticking and freezing, while the universal magnet and mounting holes make retrofits fast and flexible. As a Normally Open (N.O.) Form A contact designed for security monitoring, the GRI 4532 W/2.2K integrates easily with surveillance, intrusion detection and remote monitoring setups. Backed by a lifetime limited warranty, it’s a practical choice for long-term perimeter and door protection. Add this George Risk Industries magnetic contact to your next access control or alarm project—order now or contact our sales team for integration assistance.

• Rugged, hermetically sealed aluminum housing protects the contact for dependable door monitoring in harsh environments
• Supervised 2.2K resistor and 2.5" standard gap provide reliable, tamper-resistant detection for alarm and access control systems
• 2' stainless steel armored cable and plated contacts reduce sticking/freezing and minimize false alarms
• Universal magnet and mounting hole pattern simplify retrofit installation on overhead and sectional doors
• Low-cost design with lifetime limited warranty reduces total cost of ownership for facilities and integrators