Control Systems
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ELK Products
SKU: ELK-C1M1LTEA
ELK Products ELK-C1M1LTEA LTE Cellular Communicator
AT&T 4G LTE cellular backup for ELK alarm systems
- AT&T 4G LTE cellular alarm communicator for ELK panels
- Transmits alarm events to central station over LTE - no POTS line
- Wall, pole, corner, or column mount for signal-optimal placement
$549.70 $454.99 Save $94.71The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-IP232
ELK Products ELK-IP232 IP to Serial Interface
IP-to-RS-232 serial converter for legacy device integration
- IP-to-RS-232 serial bridge connects legacy readers to IP networks
- Wall, corner, or column mount fits closet and equipment-rack installs
- Adds Ethernet reach to RS-232 ELK panel and 3rd-party serial devices
$190.99The item has been added -
ELK Products
SKU: ELK-M1BLOCKS
ELK Products ELK-M1BLOCKS M1 Gold Terminal Blocks
Gold-plated terminal blocks for ELK M1 control panel wiring
- Gold-plated terminal blocks resist corrosion on M1 panel wiring
- Screw-terminal connections for secure field wiring termination
- Drops into ELK M1 Gold control panel for clean cable management
$47.99The item has been added -
ELK Products
SKU: ELK-M1Gold
ELK Products ELK-M1Gold ELK Security Accessory
Wired keypad panel with Wiegand and TCP/IP for hybrid access control
- Wired security control panel with Wiegand and TCP/IP reader support
- Combines access control and intrusion detection in one chassis
- Keypad-based reader integration for dual-protocol access points
$643.75 $593.99 Save $49.76The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-M1GSYS4S
ELK Products ELK-M1GSYS4S M1 Gold 4-Door Access Control System
4-door unified access control + alarm system, 999 users, multiple credential types
- Manages up to 4 independent doors with per-door access policies
- 999-user capacity fits small and mid-size facility deployments
- Multiple credential formats - cards, fobs, and PIN entry options
$926.77 $754.99 Save $171.78The item has been added -
ELK Products
SKU: ELK-M1TWA
ELK Products ELK-M1TWA Amplified Two Way Listen In Interface
Two-way amplified intercom for ELK M1 control panel systems
- Two-way amplified listen-in interface with built-in microphone
- Talk-back capability for central station alarm verification calls
- Drops into ELK M1 panels for intercom-style alarm response
$146.41 $122.99 Save $23.42The item has been added -
ELK Products
SKU: ELK-M1VO
ELK Products ELK-M1VO Voltage Output Conversion Board
0-10V DC conversion board for M1 control panel HVAC and lighting integration
- 0-10V DC analog voltage output module for ELK M1 control panels
- Drives HVAC, lighting, and automation gear needing analog signaling
- Drops into ELK M1 bus - no separate gateway or converter needed
$37.88 $30.99 Save $6.89The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-M1XOVR
ELK Products ELK-M1XOVR 16 Output Expander Module
16-output M1 expander with mixed relay and voltage switching
- 16-output expander - 8 voltage outputs plus 8 high-capacity relays
- Drives motors, solenoids, and heavy-duty lighting circuits
- Drops onto ELK M1 expansion bus for industrial output control
$163.99The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-M1XRF319
ELK Products ELK-M1XRF319 RF Wireless Module
RF wireless module for ELK M1 panels, 319.5 MHz, panel-powered
- 319.5 MHz RF wireless module for ELK M1 panel sensor pairing
- Drops into M1 panels for retrofit wireless sensor support
- 52 mA draw with 0 to 120 degrees F operating range
$125.00 $121.99 Save $3.01The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-M1XRFTWM
ELK Products ELK-M1XRFTWM RF Wireless Module
RF wireless module for ELK M1 panels—adds wireless zones without rewiring
- 902-928 MHz RF wireless module for ELK M1 panel integration
- Drops onto M1 hardware - no external wireless hub needed
- 25 mA receive, 85 mA transmit - low aux power impact
$175.69 $151.99 Save $23.70The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-M1XSLC
ELK Products ELK-M1XSLC M1 Interface Kit for Lutron
ELK M1 to Lutron M1XSLC gateway with dual RS-232 and network ports
- Lutron interface kit bridges ELK M1 panels to lighting control
- Dual RS-232 plus network interfaces for legacy and modern installs
- 4.25 x 6.375 x 2.125 in housing for corner or column mount
$439.23 $360.99 Save $78.24The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-M1XSP
ELK Products ELK-M1XSP Serial Port Expander
Serial port expander for ELK M1 control systems
- Serial port expander module for ELK M1 control panels
- Direct M1 serial connection - no separate interface card needed
- 4.375 x 3 x 1.125 in housing for wall or rack mount placement
$115.99The item has been added -
ELK Products
SKU: ELK-PD9HC
ELK Products ELK-PD9HC ELK Security Accessory
ELK access control accessory for single and multi-door deployments
- ELK security accessory for access control and door management
- 400 mA output per connection point for door strike loads
- Compact 6.5 x 4.3 x 2 in housing for in-cabinet placement
$59.53 $50.99 Save $8.54The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-RJSET
ELK Products ELK-RJSET Security Accessory
ELK control system accessory for multi-zone access integration
- ELK-system integration accessory with self-adhesive foam mounting
- Direct ELK panel compatibility without protocol adapters
- Drops into existing ELK access and alarm system deployments
$8.99The item has been added -
ELK Products
SKU: ELK-WA003
ELK Products ELK-WA003 Remote Cellular Antenna
Remote cellular antenna for ELK systems with flexible pole/corner mounting
- Remote cellular antenna extends signal reach for ELK communicators
- Pole, corner, or column mount for signal-optimal placement
- Cable run to ELK cellular module recovers low-signal install zones
$24.35 $20.99 Save $3.36The item has been added -
Add to Cart The item has been addedELK Products
SKU: ELK-M1XIN
ELK Products M1 16 Zone Input Expander M1Xin - ELK-M1XIN
- 16-zone input expander adds extra wired sensor zones to M1 panels
- 12VDC bus-powered from M1 panel - no separate supply needed
- Drops into ELK M1 expansion bus for sites outgrowing native zones
$112.99The item has been added
Control Systems
Access control control systems manage doors, credentials, and policy enforcement across commercial facilities. These systems serve as the central platform for authentication, monitoring, reporting, and integration with broader security infrastructure.
Plan Your Deployment
- Door count and future expansion planning
- On-premise vs cloud-based management platforms
- Credential format compatibility (card, mobile, biometric)
- Integration with video, intercom, and alarm systems
- Network segmentation and cybersecurity considerations
Control Systems — Engineering-Grade Access Control for Commercial Deployments
This category covers 53 working models of control systems 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
Door count today versus expansion in 5 years dictates controller architecture. Single-door PoE controllers (HID Aero, Axis A1601) are economical for small sites and scale linearly. Multi-door panels (Mercury, Lenel S2, Kantech KT-400) consolidate hardware and reduce per-door cost on large deployments but require upfront commitment to a head-end platform. Plan capacity to absorb growth without ripping out boards mid-life.
Credential strategy locks you to a reader and controller ecosystem. Modern 13.56 MHz options (HID iCLASS Seos, Mifare DESFire EV2/EV3, OSDP-native) resist cloning that 125 kHz prox cards do not. Mobile credentials (HID Mobile Access, LEAF, Bluetooth/NFC) demand readers that support secure transports. If you anticipate migrating credentials, choose controllers and readers that accept multiple formats and OSDP from the start.
Integration with your video, intrusion, and identity systems is the long-tail cost. Native ONVIF Profile A (access control) is uncommon; most integrations rely on vendor APIs, scripted IFTTT-style bridges, or middleware. Confirm controller-to-VMS and controller-to-active-directory integration paths before you commit — retrofitting these later is expensive.
Power, network, and physical mounting requirements vary widely. Some controllers run on 12VDC, others on 24VAC, others on PoE+. Door-frame mounting versus closet/rack mounting changes wire-pull strategy. Budget for door hardware (electrified locks, strikes, REX, door position) and the secondary power supply with battery backup that fire code requires on egress doors.
Key Specs in This Category
| Spec | Available Options |
|---|---|
| Resolution | 8MP, 2MP |
| Connectivity | Wired |
| Power | AC/DC |
| Type | Accessory, Mobile Computer, Controller, Reader, Cable, Speaker, Camera, Control module |
Top Brands in This Category
Frequently Asked Questions
What's the difference between OSDP and Wiegand?
Wiegand is the legacy reader-to-controller protocol — open, unencrypted, vulnerable to spoofing and limited to short cable runs. OSDP (Open Supervised Device Protocol) is the modern replacement: encrypted, bidirectional, supports tamper detection and firmware updates, and runs reliably over longer distances. SIA SP1/SP2 designations indicate OSDP Secure Channel support. New deployments should specify OSDP everywhere unless legacy infrastructure forces Wiegand.
Can I use one controller across multiple buildings?
Most modern IP-based controllers can manage geographically distributed doors as long as network connectivity to the head-end is reliable. However, doors at remote sites lose access decision capability if WAN goes down unless the controller supports offline mode and caches valid credentials locally. For multi-site deployments, choose controllers with documented offline operation and consider redundant head-ends for compliance-sensitive industries.
How many credentials can a typical controller hold?
Entry-level controllers hold 5,000-10,000 credentials. Mid-range hold 50,000-100,000. Enterprise platforms scale to millions through the head-end software with the controller acting as a cached decision point. Card-to-reader presentation time matters more than raw capacity once you're above 10,000 — confirm the read time at the maximum cardholder count, not the controller's spec-sheet headline number.
Do I need PoE or can I use a separate power supply?
PoE simplifies installation — one cable per door — and is the dominant approach for single-door IP controllers. Multi-door panels typically need a dedicated 12VDC or 24VAC power supply with battery backup sized to drive electrified locks and accessories. Egress doors often require code-mandated battery backup regardless of controller power source. Confirm local fire code requirements before finalizing the power architecture.
What's the typical lifespan of an access control panel?
Hardware lifespan is 10-15 years for well-built panels (Mercury, Lenel, Kantech, HID Aero). The platform software typically forces a refresh sooner — 5-8 years — through driver deprecation, mobile credential support gaps, or end-of-life of the head-end version. Plan for software-driven refresh ahead of hardware failure. Migration projects always run longer than planned; start scoping a replacement in year 5 of a 10-year hardware horizon.
Need help choosing? Talk to a Senior Specialist — direct line 877-277-7147 or request a quote.