Product images are provided for reference and may not represent the exact model, configuration, or included components.

No Bots, Just Experts

Questions about this product? Free pre-sales support from a senior specialist — product questions, compatibility checks, BOM quotes, price confirmation — typically answered within one business day. Need camera placement or system design work? Engineering time is $175 per hour (qty 1 = 1 hour). Hardware buyers get up to one hour ($175) credited back on their order.

Description

GRI 29PA-W Commercial Surface Mount Contact

Overview

The GRI 29PA-W is a 2.5-inch commercial-grade surface mount contact designed for reliable perimeter security and access monitoring in commercial and industrial environments. Its robust construction and terminal connections ensure a secure and durable installation, making it suitable for integration with various alarm and access control systems. The 29PA-W model specifically addresses deployments requiring a compact yet sturdy contact that can withstand typical commercial conditions.

Compatibility

This surface mount contact is designed for broad compatibility with most alarm control panels and access control systems that accept standard dry contact inputs. It functions as a simple switch, closing a circuit when the magnet is in proximity and opening it when separated. It is intended for use with systems that require wired sensor inputs, such as those found in commercial security installations.

Installation Notes

The 29PA-W utilizes screw terminals for connection, simplifying wiring and ensuring a secure electrical bond. Its surface mount design means it attaches directly to the mounting surface (door/frame, window/frame) without requiring recessed installation. Ensure the magnet and contact are aligned within the specified operating gap for reliable detection. For optimal performance, mount both the contact and magnet on non-ferrous surfaces.

What's in the Box

  • 1x GRI 29PA-W Surface Mount Contact
  • 1x GRI 29PA-W Magnet
  • Mounting screws
Specifications
Mount Type: Surface Mount
eol: true
Q&A
Reviews

GRI 29PA Series 2.5" Commercial Surface Mount Contact with Terminals

$7.10
$6.99

RELATED PRODUCTS

Save $2.15
GRI 410P Series 4" Commercial/Industrial Surface Mount Contact with... (view 2)
Add to Cart The item has been added

GRI 410P-W

GRI 410P-W 4" Surface Mount Contact

4" surface mount door contact for commercial access control systems

  • 4-inch commercial surface-mount contact with 36-inch armored cable
  • Pre-attached shielded leads cut on-site wire pulls
  • Built-in EOL resistors and diodes available on request
Usually Ships in 2-3 Weeks Free shipping over $499
$12.14 $9.99 Save $2.15
The item has been added Add to quote
$12.14 $9.99 Save $2.15
Save $2.15 Add to cart Add to quote
Save $3.48
GRI 410 Series 4" Commercial/Industrial Surface Mount Contact
Add to Cart The item has been added

GRI 410-W

GRI 410 Series 4" Commercial/Industrial Surface Mount Contact

4" surface mount contact for door monitoring & strike control

  • 4-inch commercial surface-mount door contact for industrial install
  • Side-terminal connections accept conduit and armored cable
  • Lifetime warranty - US-made magnetic switch and magnet assembly
Usually Ships in 2-3 Weeks Free shipping over $499
$12.47 $8.99 Save $3.48
The item has been added Add to quote
$12.47 $8.99 Save $3.48
Save $3.48 Add to cart Add to quote
Save $0.79
GRI 500 Series Micro Surface Mount Contact
Add to Cart The item has been added

GRI 500-W

GRI 500 Series Micro Surface Mount Contact

Micro surface mount contact for GRI 500 series door monitoring

  • Micro surface-mount door position contact for tight install spaces
  • 5VDC operation drops into standard alarm zone wiring
  • Lifetime US-made warranty - 0.45 lb compact housing
Usually Ships in 2-3 Weeks Free shipping over $499
$5.78 $4.99 Save $0.79
The item has been added Add to quote
$5.78 $4.99 Save $0.79
Save $0.79 Add to cart Add to quote

System Design, Deployment & Technical Support

Support services and planning resources for commercial surveillance, access control, and infrastructure deployments.

Fixed scope • Fixed price

System Design Assistance

  • Get help validating product compatibility
  • Coverage requirements
  • Storage planning and deployment architecture before you buy.
Request Design Help

Deployment & Configuration Support

  • Access fixed-scope support for rollout planning
  • User setup guidance
  • Migration and system standardization across single-site or multi-site deployments
View Support Services

Guides, Tools & Calculators

  • PoE requirements
  • Storage retention
  • Camera selection and deployment methodology
Open Technical Resources