GRI

What GRI makes and where it’s used

George Risk Industries (GRI) is a longstanding U.S. manufacturer of magnetic reed switch contacts, magnet assemblies, proximity and pushbutton switches, keycaps/keyboards and a broad set of accessories for intrusion, access and environmental sensing. GRI products are widely used by alarm installers, facilities maintenance teams, OEMs and contractors for door and window contacts, overhead/garage door monitoring, pool/panic alarms, and industrial proximity sensing where reliable magnetic switching is required.

Main product families and technologies

• Magnetic reed switch contacts (recessed and surface): miniature through commercial sizes, closed/open loop, SPDT and DPDT; standard, WG (wide gap) and XWG (extra wide gap) variants.
• Overhead and industrial switches: track/rail mounts, vane and roller options for garage and dock doors.
• High-security and biased switches: biased and Magnasphere style contacts for tamper-resistant needs.
• Magnets and cases: magnet-in-case products (M-series) sized to pair with switch families.
• Accessories: spacers, recessed adapters, pre-wire plugs, bushings, and cable/connector options; common trade pack quantities.

Common technical variables procurement buyers should check

Important attributes to confirm on Safsale listings or manufacturer spec sheets include gap size (standard/WG/XWG), electrical configuration (open/closed, SPDT/DPDT), built-in end-of-line resistor values, lead length or terminal type, mounting style and color/finish.

Applications and industries

GRI reed contacts and magnets are used in residential alarm zones, commercial door/window monitoring, warehouse and dock door monitoring, safe/manhole protection, and OEM equipment for machine access detection. Many models are specified for outdoor and cold-temperature applications where hermetic sealing and plated contacts are required.

How to identify the correct GRI model on Safsale

• Compare the full GRI part number shown on Safsale to the GRI catalog numbering scheme (look for WG, XWG, -12, -T, -AXL, resistor values and color suffixes).
• Use product images to check housing shape and magnet case size (recessed vs. surface parts look different).
• Download the spec sheet attached to the listing to confirm electrical and mechanical specs.
• Read listing Q&A and reviews for installer tips or compatibility notes.

Sourcing and replacement guidance for buyers

• Match function first: verify loop type, contact configuration and EOL resistor needs before matching cosmetic details.
• Confirm mechanical gap and door material; order WG/XWG or adapters for steel doors when required.
• Order matching magnets (M-series) and accessories to ensure fit.
• Note pack counts: many GRI items are sold in 10 or 100 packs suitable for trade use.

How Safsale helps procurement teams

Safsale’s GRI manufacturer page aggregates product images, SKU examples, short specs and downloadable datasheets to make it easier to compare gap size, configuration and resistor options, and to collect multiple SKUs for a single installation type prior to ordering.

Practical tips

Maintain a short list of commonly used part numbers, inspect legacy contacts for stamped part numbers or magnet case styles, and verify EOL resistor values when required by the alarm panel.

Bottom line: For security and facilities procurement, GRI provides a broad, field-proven set of magnetic contacts, magnets and accessories. Use Safsale’s listing details, images and spec attachments to confirm the exact GRI part number and variant before purchase.