{"brand":"GRI","brand_id":99,"slug":"gri","hero_image_url":"/product_images/uploaded_images/brand_heroes/gri.jpg","intro_h2":"Magnetic door, window, and overhead-door contacts","intro_paragraph":"

GRI (George Risk Industries) is the US-manufactured magnetic-contact specialist whose door, window, overhead-door, and industrial contact product lines cover the alarm-zone perimeter-detection tier that commercial and residential intrusion deployments depend on. The breadth of form factors \u2014 surface-mount, recessed, overhead, wide-gap, hi-security balanced biased \u2014 covers the geometry of essentially every door and window installation scenario. For commercial alarm dealers, GRI is the integrator-default contact manufacturer.

","top_categories_html":"Wireless SensorsIntrusion PanelsMotion & Glass Break DetectorsDoor HardwareAccessories","narrative_blocks_html":"
\"Surface-mount

Surface-mount contacts

The GRI 28 / GRI 29 surface-mount magnetic contact lines cover the standard commercial and residential door-and-window contact tier with closed-loop, open-loop, and SPDT switching options. The standard wire-lead and screw-terminal variants drop into the alarm-panel zone-wiring without per-installation custom termination.

Shop Surface Contacts
\"Recessed

Recessed contacts

The GRI 100 / GRI 110 recessed magnetic contact lines mount flush in the door frame and door edge for installations where surface-mount is aesthetically or operationally objectionable \u2014 high-end residential, hospitality, and commercial-front-of-house deployments where the contact needs to disappear from view.

Shop Recessed
\"Overhead-door

Overhead-door contacts

The GRI 4400 and GRI 4500 overhead-door contact lines cover the warehouse, dock-door, and commercial overhead-door scenarios where the contact needs to handle the geometry, wear, and physical-force conditions of overhead operation. Wide-gap variants accommodate the door-alignment tolerance typical of overhead installations.

Shop Overhead
\"Window

Window contacts

The window-contact product line covers the residential and commercial window-perimeter detection tier with the slim profiles and color options that match standard window-frame architecture. The wide-gap and recessed-pin variants cover the geometry of typical window-frame installations.

Shop Window Contacts
\"Industrial

Industrial and hi-security contacts

The hi-security balanced-biased magnetic contacts and the industrial-rated explosion-proof contacts cover the deployments where standard commercial contacts cannot meet the regulatory or environmental requirements \u2014 government, military, hazardous-area, and high-security commercial deployments.

Shop GRI
","featured_products_html":"
\"GRI

GRI GI-29AW Magnetic Door Contact

$4.99
\"GRI

GRI 4532 Mini Overhead Door Contact

$17.99

GRI GR1840 Oval Channel Magnet with Recessed Switch

$6.99
\"GRI

GRI 2600 Water Sensor with Relay

$30.99
\"GRI

GRI 4532L Mini Overhead Door Contact with Lead Wire

$20.99
\"GRI

GRI GR3045 Panic Switch

$26.99
","trust_block":"

Selling GRI since 2014, through national US distribution. US-manufactured (Kimball, NE). Senior specialist pre-sales review on multi-door commercial intrusion BOMs and hi-security contact selection.

"}