Door Hardware & I/O
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Add to Cart The item has been addedGRI
SKU: 4532L
GRI 4532L Mini Overhead Door Contact with Lead Wire
Mini overhead door contact with hardwired lead—no power needed
- Mini overhead door contact with pre-attached lead wire
- Lead-wire termination cuts on-site wire pulls and conduit
- Lifetime US-made warranty for retrofit overhead door installs
$27.18 $19.99 Save $7.19The item has been added -
Add to Cart The item has been addedGRI
SKU: 4612
GRI 4612 Mini Curtain Door Contact Sensor
Mini contact sensor for curtain doors and cabinet enclosures
- Mini curtain door contact for thin-wall and cabinet installations
- Contact closure signaling to standard alarm zone inputs
- Lifetime US-made warranty - 0.15 lb compact housing
$54.72 $39.99 Save $14.73The item has been added -
GRI
SKU: 4704
GRI 4704 Pull-Apart Industrial Contact
Tool-free pull-apart contact for access control and strike systems
- Pull-apart industrial contact disconnects tool-free for service
- Lifetime US-made warranty - rated for high-cycle access points
- Drops onto standard ELK and 3rd-party access panel zone inputs
$44.65 $27.99 Save $16.66The item has been added -
GRI
SKU: 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
$5.78 $4.99 Save $0.79The item has been added -
GRI
SKU: 505-W
GRI 505 Series 1" Super Mini Brad Surface Mount Contact
1" super mini brad contact for compact access control installations
- 1-inch super-mini brad surface-mount contact for tight installs
- Lifetime US-made warranty - 0.45 lb compact housing
- Switches and magnets available separately for custom door geometry
$5.78 $4.99 Save $0.79The item has been added -
Add to Cart The item has been addedGRI
SKU: 5065
GRI 5065 Series 3/8" Recessed Magnetic Reed Contact
3/8" recessed magnetic reed contact for concealed door detection
- 3/8-inch recessed magnetic reed contact for standard door frames
- Matches 95% of commercial door-to-frame clearance configurations
- Lifetime US-made warranty - 1 lb sealed reed switch assembly
$3.62 $2.99 Save $0.63The item has been added -
GRI
SKU: 5088-W
GRI 5088 Series 3/8" Flat Magnet Recessed Contact
3/8" recessed flat magnet contact for door position feedback
- 3/8-inch flat magnet recessed contact for standard frame depths
- Reduced protrusion lowers tampering and snag-hazard exposure
- Lifetime US-made warranty for commercial door monitoring
$4.66 $3.99 Save $0.67The item has been added -
GRI
SKU: GI-29AW
GRI GI-29AW Magnetic Door Contact
- Wide-gap surface-mount magnetic door and window contact
- Normally-closed (NC) hardwired output for fail-safe loop monitoring
- Compact white housing matches residential and office trim
In stock · Ships same business day$4.99 -
GRI
SKU: GR1840
GRI GR1840 Oval Channel Magnet with Recessed Switch
Oval channel magnet with integrated recessed switch for door status feedback
- Oval channel magnet with built-in recessed reed switch in one unit
- Single-component install - no separate magnetic contact wiring
- Lifetime US-made warranty - recessed mount for clean appearance
$8.83 $5.99 Save $2.84The item has been added -
GRI
SKU: GR2721
GRI GR2721 High Security Biased Contact
UL634 Level 2 recessed contact for high-security entry monitoring
- UL634 Level 2 high-security biased contact resists tamper and defeat
- 0 to 3/16 inch (4.76 mm) sensing gap for tight surface mount fit
- 10 uA standby current for very low alarm power budget impact
$590.96 $461.99 Save $128.97The item has been added -
GRI
SKU: GR2723
GRI GR2723 High Security Biased Contact
High-security biased contact for access control door strikes
- Biased magnetic contact for high-security door position monitoring
- Lifetime US-made warranty - tamper and defeat resistant
- Drops into standard alarm zone wiring with EOL resistor compatibility
$590.58 $421.99 Save $168.59The item has been added -
GRI
SKU: MS4702
GRI MS4702 Magnasphere High Security Contact
Magnasphere magnetic reed switch for high-security door monitoring
- Magnasphere magnetic reed contact for high-security door monitoring
- Lifetime US-made warranty - drop-in for critical access points
- Compatible with standard alarm panel zone input wiring
$62.24 $47.99 Save $14.25The item has been added -
GRI
SKU: PTDC
GRI PTDC Power Transfer Device with Connector
Power distribution for multi-reader access control with signal isolation
- Power transfer device with connector for multi-door access systems
- Twist-lock cable interface for rapid deployment and replacement
- Lifetime US-made warranty - includes mounting screws and hardware
$30.99The item has been added -
HES
SKU: 10-262
HES 10-262 Surface 4 Ball Contact Device
Surface-mount 4-ball contact device for HES electric strike systems
- 4-ball contact closure integrates directly with HES strike systems for door status monitoring
- Surface-mounted design eliminates recessed installation, ideal for retrofit applications
- 24VDC operation supports standard access control platforms and event logging
$285.00 $157.99 Save $127.01The item has been added -
HES
SKU: 1000-110
HES 1000-110 Replacement Strike Plate
Genuine HES replacement strike plate for 24VDC electric strike systems
- Steel construction compatible with HES electric strike product lines
- Fits standard commercial door frame configurations for access control
- Replacement component for wear, damage, or system reconfiguration needs
$139.50 $138.99 Save $0.51The item has been added -
HES
SKU: 1006-BLK
HES 1006 electric strike body black finish - 1006-BLK
- Field-selectable fail-safe or fail-secure operation matches lockdown and life safety codes.
- Fits standard ANSI door prep on hollow metal, aluminum, and wood frames without modification.
- Accepts 12/24 VDC or AC input, simplifying power supply design in multi-door ACS deployments.
$957.00 $483.99 Save $473.01The item has been added
Door Hardware & I/O
Door hardware and I/O components connect physical doors to your access control system. From electric strikes and magnetic locks to exit devices and relay modules, proper hardware selection ensures safe, compliant, and reliable operation.
Plan Your Deployment
- Fail-safe vs fail-secure lock configuration
- Door type (wood, metal, glass, storefront)
- Request-to-exit (REX) device requirements
- Power supply and voltage compatibility
- Local life-safety and fire code compliance
Door Hardware & I/O — Engineering-Grade Door Hardware for Commercial Deployments
This category covers 532 working models of door hardware & i/o sourced manufacturer-direct or through channel-direct US distribution. Build the rest of your system around the architectural choices below — compatibility, environmental rating, and lifecycle decisions made here propagate through every downstream component you specify.
What to Look For
Fail-safe versus fail-secure determines what happens during power loss. Fail-safe locks unlock on power loss (used on egress doors where life safety dominates); fail-secure locks remain locked (used on storage, server rooms, and exterior doors where security dominates). Code typically mandates fail-safe on stairwell and egress doors. Confirm with the AHJ before specifying — misapplied lock mode is a common code violation.
Strike, mortise, magnetic lock, and electrified panic hardware each have distinct installation, current draw, and code implications. Electric strikes work with most mechanical locksets and are easiest to retrofit. Magnetic locks (maglocks) provide high holding force on glass and wood doors but require dedicated REX and panic-bar interfaces for egress compliance. Verify the door's existing prep before choosing.
Power draw and inrush current dictate power supply sizing. A 5-door system with 1A peak per lock can exceed an undersized 12VDC supply at simultaneous lock-down events. Account for accessories — REX motion sensors, door-position switches, electrified levers — when sizing the supply and the battery backup required for code compliance.
Tamper switches, door-position monitoring, and request-to-exit sensors generate the audit trail your security team needs. Mechanical contact switches are cheaper; magnetic reed switches resist tampering better. Pair each door with a position switch and a REX sensor at minimum — without door-position monitoring, you can't distinguish 'authorized entry' from 'door held open after authorized entry,' which is a common compliance gap.
Key Specs in This Category
| Spec | Available Options |
|---|---|
| Resolution | 8MP, 2MP |
| IP Rating | IP66, IP67 |
| Connectivity | Wired |
| Power | AC/DC, Battery |
| Type | Accessory, Controller, Cable, Switch, Power Supply, Access Card, Contact, Lock/Strike |
| Night Vision | Yes |
Top Brands in This Category
Frequently Asked Questions
Fail-safe or fail-secure for stairwell doors?
Fail-safe is mandatory on most stairwell doors and other code-designated egress paths — the lock must release on fire alarm or power loss to allow evacuation. Fail-secure on those doors is a code violation. Confirm the local fire code and AHJ requirements; commercial buildings in the U.S. follow NFPA 101 and the International Building Code, both of which detail egress lock behavior in detail.
What current draw should I plan for electrified locks?
Typical 12VDC electric strikes draw 200-500 mA continuous, with inrush spikes of 1-2A at engagement. Magnetic locks rated for 1,200 lbs holding force draw around 500 mA continuous at 24VDC. Power supplies need to handle simultaneous lock-down current — emergency lockdown events activate all locks at once. Size the supply with at least 25% headroom and confirm battery backup runtime requirements.
Do I need a request-to-exit (REX) sensor?
Most code-compliant electrified door installations require a REX sensor to shunt the alarm during authorized egress. Without REX, every egress event registers as a forced-door alarm. PIR motion sensors are the common choice and integrate with the door controller's REX input. Mechanical push-bar REX is also acceptable for hardware that includes that switch natively.
Can I use one lock for both card and mechanical key entry?
Yes — most electrified strikes and locks allow mechanical key override on the same door. Maintaining a master key for emergency mechanical access is required by code in many jurisdictions and recommended in all. Document the master key holders carefully; an uncontrolled master key program undermines the electronic audit trail.
What's the lifespan of a magnetic lock?
Quality maglocks (Securitron M62, HES, von Duprin) typically last 15-20 years with no mechanical wear. Failure points are the connector, the armature plate-to-lock alignment, and contamination of the magnetic face. Plan for armature replacement at year 10 as a hedge against alignment drift. Strike-type locks with mechanical parts last 5-10 years before strike-plate wear becomes a reliability issue.
Need help choosing? Talk to a Senior Specialist — direct line 877-277-7147 or request a quote.