Voomi Supply carries commercial door security and hardware, including door closers, keyless and electronic locks, exit devices and panic bars, electronic access control components, and intercom and entry systems, from brands like Adams Rite, Corbin Russwin, Detex, Dexter, and Falcon Lock. Shop in-stock hardware with detailed technical specifications on every listing, plus US-based support to help match voltage, mounting, and door type to your building's requirements.
Commercial door security is built from several categories of hardware that work together, each serving a different function in how a door opens, closes, and controls access.
| Category | What it does | Common use |
|---|---|---|
| Door closers | Controls the speed and force of a door closing after it opens | Fire-rated doors, ADA-compliant entrances, high-traffic doors |
| Exit devices / panic bars | Allows immediate exit by pushing a bar, required on many life-safety doors | Emergency exits, assembly occupancies, fire codes |
| Electric strikes | Replaces a standard strike plate to allow remote or electronic unlocking | Access-controlled doors with a standard latch |
| Electronic access control | Manages who can enter through credentials like cards, fobs, or codes | Employee entrances, restricted areas |
| Intercom & entry systems | Lets staff verify and remotely unlock a door for visitors | Lobbies, multi-tenant buildings, gated entries |
An exit device (panic bar) lets someone leave a building by pushing a bar, without needing a key, and is required by fire code on many life-safety doors. Electric latch retraction adds a motor that can remotely retract the latch, so the same door that meets fire-exit requirements can also be tied into an access control system for entry from the outside, like the Adams Rite 8801EL or a motorized retrofit kit added to an existing exit device.
This usually comes down to one of three things: no power reaching the device, a wiring or polarity issue, or a mismatch between the device's fail-safe/fail-secure setting and how it was wired. First confirm the device is actually receiving its rated voltage at the unit itself, since a voltage drop over a long wire run is a common cause of intermittent or no operation. If power is present but the strike or latch still won't release, check that fail-safe (unlocks on power loss) versus fail-secure (locks on power loss) wiring matches what the device is set to, since these are easy to wire backwards. If both check out, the access control panel or the relay triggering the device may not be sending a signal, which a licensed access control technician can trace with a multimeter.
Fail-safe hardware unlocks automatically if it loses power, which is required on many fire-exit doors so people can always get out. Fail-secure hardware stays locked if it loses power, which is common on doors where security matters more than emergency egress from that specific point, such as some interior or perimeter doors. The correct choice depends on the door's function and local fire code, not just preference.
Yes, exit devices used on fire-rated or life-safety doors generally need to be UL listed for panic hardware or fire exit hardware, depending on the door's rating. Check the specific listing on the product page and confirm it matches your door's fire rating before installing.
Most electric strikes, latch retraction devices, and access control components run on low-voltage 12V or 24V DC, often selectable on the same unit. Confirm the voltage matches your access control power supply or transformer before wiring.
Simple component swaps, like replacing a closer arm or a mechanical lock cylinder, are within reach for an experienced installer. Anything involving fire-rated doors, life-safety exit hardware, or access control wiring should be installed by a licensed locksmith or access control technician to stay code-compliant.
A proximity reader detects a credential, like a card or fob, held near it and sends that credential's data to an access control panel, which decides whether to unlock the door. Readers are rated by frequency (commonly 125 kHz for older systems) and output type (commonly Wiegand) to match the rest of the access control system.