Door Controllers

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    SDC 400U-SN Access Controller with Integrated Siren

    SDC 400U-SN

    SDC 400U-SN Access Controller with Integrated Siren

    4-door controller with integrated siren for small-to-mid facilities

    • Manages 4 independent door circuits with 250,000 on-device HID credentials.
    • OSDP and TCP/IP support enables integration with networked or standalone reader systems.
    • Single-gang form factor with integrated siren simplifies retrofits and reduces wiring.
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    SDC 482R-KIT ADA SPDT Blue 4.5 Round 630 Door Controller

    SDC 482R-KIT

    SDC 482R-KIT ADA SPDT Blue 4.5 Round 630 Door Controller

    4-door controller with OSDP/TCP/IP for HID-based access systems

    • Momentary SPDT contact at 28VDC/1A drives relay coils and strike circuits directly.
    • Mounts recessed, surface box, or bollard — 7/8-inch depth fits standard electrical boxes.
    • 18-gauge stainless steel faceplate handles corridor and vestibule use without corrosion.
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    SDC 491 Blue Break Glass Emergency Door Controller
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    SDC 491

    SDC 491 Blue Break Glass Emergency Door Controller

    10-door controller with blue break-glass emergency override and dual OSDP/TCP/IP

    • Controls up to 10 door points, reducing controller count in mid-size deployments.
    • Dual OSDP + TCP/IP comms eliminate dedicated RS-485 runs to every reader.
    • Blue break-glass hardwired override ensures egress during network or power faults.
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    SDC 632RFA 2 Amp Class 2 Access Controller

    SDC 632RFA

    SDC 632RFA 2 Amp Class 2 Access Controller

    63-door Class 2 controller with 250K credential capacity

    • Manages up to 63 doors from a single 24VDC controller, simplifying mid-scale deployments.
    • Stores 250,000 user credentials locally, eliminating database splits across multiple controllers.
    • Reads DESFire, MIFARE, NFC, and 125 kHz prox cards for seamless mixed-credential retrofits.
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    SDC 702U Sdc/Security Door Controls 702U Proximity Keypad Controller

    SDC 702U

    SDC 702U Proximity & Keypad Access Controller

    Dual-input controller for proximity cards and keypads in single unit

    • Handles proximity cards and keypad PINs in one wired controller, no duplicate hardware.
    • OSDP protocol encrypts credential transmission end-to-end across certified ACS platforms.
    • 13.56MHz NFC credential support integrates with standard enterprise card issuance systems.
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    SDC 705UL2 DPDT Key Switch Access Controller

    SDC 705UL2

    SDC 705UL2 DPDT Key Switch Access Controller

    DPDT key switch controller with OSDP and NFC/13.56MHz credential support

    • OSDP communication enables centralized access logging without a full credential reader.
    • DPDT relay isolates strike and monitoring circuits from a single 24VDC controller.
    • Supports NFC/13.56MHz and proximity credentials for mixed-credential deployments.
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    SDC 708RU Multi-Reader Door Controller

    SDC 708RU

    SDC 708RU Multi-Reader Door Controller

    OSDP door controller for proximity, NFC, and keypad readers

    • OSDP certification enables third-party reader and software integration without custom gateways.
    • Handles 125kHz proximity, NFC/13.56MHz smart cards, and PIN keypads from a single controller.
    • Lifetime warranty and wall-mount form factor simplify long-term distributed deployment planning.
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    SDC 709UL1G Multi-Credential Door Controller 63-Door

    SDC 709UL1G

    SDC 709UL1G Multi-Credential Door Controller 63-Door

    Enterprise controller for 63 doors with multi-credential support

    • Single controller handles up to 63 doors, reducing hardware count and cabling complexity.
    • Accepts DESFire, MIFARE, NFC 13.56 MHz, and 125 kHz prox—no reader swaps during migration.
    • Stores 250,000 user records locally; scales to large enterprise populations without replication.
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    SDC 806AL MO DPDT Door Controller with 628 Anodized Aluminum

    SDC 806AL

    SDC 806AL MO DPDT Door Controller with 628 Anodized Aluminum

    OSDP door controller with NFC/13.56MHz for wired access systems

    • OSDP communication integrates directly with Genetec, Salto, and standards-compliant platforms.
    • MO DPDT relay handles mag-lock or electric strike wiring without auxiliary relay modules.
    • 628 anodized aluminum housing supports indoor and semi-outdoor deployment with corrosion resistance.
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    SDC CBC482A4U Access Control Door Controller

    SDC CBC482A4U

    SDC CBC482A4U Access Control Door Controller

    Multi-door controller for 63 doors and 250,000 credentials

    • Manages up to 63 doors and 250,000 credentials from a single 4U rack unit.
    • OSDP encrypted reader communication meets compliance in regulated facilities.
    • Accepts DESFire, MIFARE, NFC, and 125 kHz prox—supports mixed credential migration.
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    SDC LR100ARK-EM Adams Rite Access Controller

    SDC LR100ARK-EM

    SDC LR100ARK-EM Adams Rite Access Controller

    4-door controller with HID support for up to 250,000 accounts

    • Motor-driven latch retraction draws only 700mA inrush, easing 12/24VDC supply loads.
    • Manages up to 4 doors with HID credential support for as many as 250,000 accounts.
    • Retrofits inside the exit device rail without device removal, cutting installation time.
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    SDC LR100DMK Electric Latch Retraction Access Controller
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    SDC LR100DMK

    SDC LR100DMK Electric Latch Retraction Access Controller

    Wired controller for up to 63 doors with 250K credential storage

    • Controls up to 63 doors from one unit, cutting cabinet space and wiring runs.
    • Stores 250,000 credentials on-board—no remote polling required for large workforces.
    • Supports DESFire, MIFARE, NFC, and 125 kHz proximity for mixed-credential environments.
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  • Save $560.01
    SDC S6101PU36B RIM 630 36" Door Controller 63-Door

    SDC S6101PU36B

    SDC S6101PU36B RIM 630 36" Door Controller 63-Door

    Networked controller for up to 63 doors with 250,000 user credentials

    • Manages up to 63 doors from a single controller, reducing wiring and device overhead.
    • Stores 250,000 user credentials on-board, eliminating external database licensing costs.
    • Accepts DESFire, MIFARE, NFC, and 125kHz prox, preserving existing card infrastructure.
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  • Save $944.51
    SDC S6203PU36EEK Access Control Door Controller 63-Door

    SDC S6203PU36EEK

    SDC S6203PU36EEK Access Control Door Controller 63-Door

    63-door networked controller supporting 250,000 credentials

    • Manages up to 63 doors and 250,000 credential records from a single controller.
    • Native OSDP and TCP/IP eliminate middleware when integrating with Genetec, Milestone, or Honeywell.
    • Supports DESFire, MIFARE, NFC 13.56 MHz, and 125 kHz prox—no hardware swap when migrating cards.
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  • Save $1,018.01
    SDC S6303PLRU36REEEMS Multi-Credential Door Controller

    SDC S6303PLRU36REEEMS

    SDC S6303PLRU36REEEMS Multi-Credential Door Controller

    63-door controller with 250,000 credentials and multi-tech reader support

    • Manages up to 63 doors and 250,000 credentials from a single wired controller.
    • Supports DESFire, MIFARE, NFC, and 125 kHz prox simultaneously—no reader swap needed.
    • TCP/IP and OSDP integration enables interoperable deployment with third-party platforms.
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    SDC Security Door Controls 423MUL1G 10-Door Controller

    SDC 423MUL1G

    SDC Security Door Controls 423MUL1G 10-Door Controller

    10-door controller with multi-credential support for mixed deployments

    • Manages 10 doors and 250,000 users without additional hardware or licensing tiers.
    • Accepts DESFire, MIFARE, NFC, and 125kHz prox on one controller—no credential-specific hardware.
    • OSDP communication integrates directly with third-party ACS platforms over 24VDC or PoE.
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    SDC Security Door Controls IC-UR48-SPEC 4-Door Controller

    SDC IC-UR48-SPEC

    SDC Security Door Controls IC-UR48-SPEC 4-Door Controller

    4-door access controller with 250,000 user capacity for multi-door facilities

    • Controls 4 doors with independent access policies, eliminating separate single-door controllers.
    • Stores 250,000 credential profiles on-device, supporting large campuses without memory limits.
    • OSDP and TCP/IP connectivity enables encrypted reader comms and remote credential management.
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    SDC Security Door Controls MC-4PAK 4-Door Access Controller

    SDC MC-4PAK

    SDC Security Door Controls MC-4PAK 4-Door Access Controller

    4-door controller with 250K credential capacity for networked access

    • Manages 4 independent access points from one controller, reducing cabinet footprint.
    • Stores up to 250,000 HID credentials locally, eliminating dependency on a remote server.
    • OSDP and TCP/IP dual-protocol support enables encrypted reader comms and direct LAN integration.
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    SDC Security Door Controls PTH-4Q 4-Door Access Controller
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    SDC PTH-4Q

    SDC Security Door Controls PTH-4Q 4-Door Access Controller

    4-door access controller with 250K user capacity and OSDP/TCP/IP

    • Manages four independent door circuits from one controller, cutting panel real estate and wiring runs.
    • Stores 250,000 user records onboard, removing external LDAP dependency for mid-sized campus deployments.
    • OSDP and TCP/IP support enables encrypted reader comms and direct integration with Genetec and Milestone.
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    SDC UR4-8 Universal Door Controller
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    SDC UR4-8

    SDC UR4-8 Universal Door Controller

    4-door controller with HID compatibility for retrofit and new installations

    • Controls up to 4 doors from a single 24VDC controller, reducing panel count and wiring.
    • Native HID credential support eliminates reader replacement costs on existing HID deployments.
    • Lifetime warranty coverage reduces long-term maintenance risk on multi-door installations.
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    SDC/Security Door Controls 400U-RMB 4-Door Controller with Buzzer

    SDC 400U-RMB

    SDC/Security Door Controls 400U-RMB 4-Door Controller with Buzzer

    4-door networked controller with 250K user capacity and integrated buzzer

    • Manages four doors from a single 24VDC controller, simplifying multi-door deployments.
    • Stores up to 250,000 HID credentials locally, reducing dependency on central auth servers.
    • OSDP and TCP/IP support enables direct integration into enterprise network infrastructures.
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    SDC/Security Door Controls 423PUL1G Pneumatic Door Controller

    SDC 423PUL1G

    SDC/Security Door Controls 423PUL1G Pneumatic Door Controller

    Pneumatic controller for up to 63 doors with 250K credential support

    • Scales to 63 doors with 250,000 credentials across OSDP and TCP/IP networks.
    • Adjustable 1–45 sec hold time suits pneumatic strikes on fire-rated and delayed-egress doors.
    • Supports DESFire, MIFARE, NFC, and 125kHz Prox readers on a single 24VDC platform.
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    Sdc/Security Door Controls 707ULT Access Controller

    SDC 707ULT

    Sdc/Security Door Controls 707ULT Access Controller

    Networked controller for 63 doors and 250,000 credentials via OSDP/TCP/IP

    • Manages up to 63 networked doors and 250,000 credentials from a single controller.
    • OSDP protocol delivers encrypted reader communication, improving on legacy Wiegand runs.
    • Supports DESFire, MIFARE, NFC, and 125kHz prox on one platform for mixed upgrades.
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    SDC/Security Door Controls IPDCE IP PRO Door Controller

    SDC IPDCE

    SDC/Security Door Controls IPDCE IP PRO Door Controller

    Networked controller for up to 32 doors with Wiegand, TCP/IP, RS-485

    • Accepts Wiegand 26–37 bit readers natively, eliminating converter hardware during IP migration.
    • Scales from 1 to 100 doors via PLUS software; web server manages 32 without added hardware.
    • PoE+ (802.3at) at 12VDC simplifies wiring; supports 60,000 users with dual credentials each.
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    Speco Technologies A1 1 Door Controller

    Speco Technologies A1

    Speco Technologies A1 1 Door Controller

    Single-door controller with dual Wiegand readers and 45+ tx/sec

    • Two Form C relays rated 24V @ 1.0A control locks and auxiliary devices
    • Dual Wiegand reader support handles badge-in/badge-out tracking per door
    • UL-294 ETL-listed design meets access control compliance requirements
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    Speco Technologies A1P Single Door Controller and Power Supply

    Speco Technologies A1P

    Speco Technologies A1P Single Door Controller and Power Supply

    Single-door controller with integrated power supply in compact form

    • Combines access control and power distribution in one unit, reducing wiring
    • Handles single-door installations in offices and small commercial spaces
    • Compact integrated design minimizes component count and installation footprint
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    Speco Technologies A1PS - Speco Technologies A1PS Single Door Controller and Power Supply

    Speco Technologies A1PS

    Speco Technologies A1PS Single Door Controller and Power Supply

    Single door controller with integrated 12VDC power supply in compact form

    • Combined controller and power supply eliminates separate components and wiring
    • Regulated 12VDC output prevents lock failures from voltage drops
    • Compact 3.2 x 3.0 x 1.3 in design fits tight mechanical rooms and closets
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    Speco Technologies A8P 8 Door Access Control Panel with Power

    Speco Technologies A8P

    Speco Technologies A8P 8 Door Access Control Panel with Power

    8-door access control panel with integrated power supply

    • Manages 8 doors from single centralized panel, reducing wiring complexity
    • Built-in power supply for strike mechanisms and access control devices
    • DIN rail mount integrates directly into existing security cabinet infrastructure
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    STI EP060605-O EnviroArmour Polycarbonate Access Controller

    STI EP060605-O

    STI EP060605-O EnviroArmour Polycarbonate Access Controller

    TCP/IP controller for 7-door systems in polycarbonate enclosure

    • Manages 7 doors over TCP/IP network with injection-molded polycarbonate housing
    • Operates at 44dB(A) for quiet installation in occupied access control spaces
    • UL/cUL certified (EP242410-O) with RAL 7035 gray finish for outdoor durability
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    STI EP141207-O EnviroArmour Polycarbonate Door Controller

    STI EP141207-O

    STI EP141207-O EnviroArmour Polycarbonate Door Controller

    • Manages up to 7 door/reader zones over TCP/IP for scalable networked access control.
    • Injection-molded polycarbonate resists corrosion in humid, outdoor, or high-moisture zones.
    • 44 dB(A) audible alarm output suits retail and office spaces without excessive noise.
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    Ubiquiti UA-HUB-DOOR Mech that provides entry and exit cont - Image 3

    Ubiquiti UA-HUB-DOOR

    Ubiquiti UA-HUB-DOOR Single-Door Access Control Hub

    Single-door access hub with PoE++ power for UniFi ecosystems

    • PoE++ (802.3bt) powered—no separate supply needed, simplifying conduit runs.
    • Five Gigabit ports support readers and downstream devices from a single hub.
    • UL 294 and NDAA compliant for regulated facilities and federal-eligible deployments.
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Door Controllers

Door controllers manage door inputs and outputs, enforce access rules, and connect readers, locks, and sensors to your broader access control platform. Choose controllers based on door count, expansion needs, and integration requirements for reliable commercial deployments.

Plan Your Deployment

  • Door count today and planned expansion capacity
  • Controller topology (single-door vs multi-door panels)
  • I/O requirements (REX, door contacts, auxiliary relays)
  • Power planning for locks and connected devices
  • Network connectivity and cybersecurity requirements
Get Recommendations Control Systems

Door Controllers — Engineering-Grade Access Control for Commercial Deployments

This category covers 78 working models of door controllers 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

SpecAvailable Options
Resolution8MP, 2MP, Thermal
IP RatingIP67
ConnectivityWired
PowerPoE, AC/DC
Channels8
TypeAccessory, Controller, Reader, Network Door Controller, Cable, Power Supply, Access Controller, Mobile Computer

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.