Keypad and Electronic Access Locks: Complete Commercial Buying Guide

Keyless entry for commercial doors falls into three categories that look similar on the surface but operate on completely different principles, carry different costs, and suit different applications. A mechanical pushbutton lock runs without power and never needs programming. An electronic keypad lock runs on batteries, stores user codes, and in most commercial-grade models logs every entry with a time and date stamp. A proximity reader system issues physical credentials and integrates with broader access control infrastructure. Picking the wrong category for a given door creates a lock that either provides less security than the application requires or adds complexity and maintenance cost the facility cannot sustain. This guide covers all three categories, the products stocked at American Locksets, and the specification decisions that separate a successful installation from a callback six months later.

What Are Keypad and Electronic Access Locks?

Keypad and electronic access locks replace the physical key as the primary credential with a numeric code, a proximity card or fob, or a combination of both. The person approaching the door enters a PIN, presents a credential, or both, and the lock releases the latch mechanically or triggers an electric solenoid depending on the product type. Inside egress, as with all commercial locks, remains free through the lever at all times.

The practical appeal for commercial facilities is clear. When an employee leaves or a tenant changes, a code can be deleted or changed in seconds at the lock keypad. No locksmith, no rekeying, no new keys to cut and distribute. For facilities with high staff turnover, multiple shifts, or frequent contractor access, that operational advantage pays for the hardware premium within the first year of ownership. For facilities where audit trail documentation is required for compliance, HIPAA, or insurance purposes, an electronic keypad lock with a logged audit trail provides evidence of who entered a specific door at a specific time, which a mechanical keyed lock cannot provide at any price.

The Three Categories: Mechanical Pushbutton, Electronic Keypad and Proximity

Understanding how these three categories differ is the first and most important step in any specification.

Mechanical Pushbutton Locks

A mechanical pushbutton lock operates entirely without electricity. The user presses a sequence of numbered buttons in the correct order and the latch retracts mechanically. No batteries, no programming software, no audit trail, no connectivity. One combination controls the lock. Changing the combination requires a brief mechanical procedure at the lock body itself, typically involving a reset tool or a key-controlled reset sequence depending on the manufacturer.

This category's primary advantage is absolute reliability. The lock cannot fail because of a dead battery, a software bug, a corrupted credential database, or a power outage. In mechanical rooms, server rooms, rooftop access points, telecom closets, and any location where an electronic failure during critical operations would be a significant problem, a mechanical pushbutton lock is frequently the correct specification. It is also the correct choice for remote locations that are rarely visited and where battery maintenance would be impractical.

The limitation is access management. Every person who needs access to the door must know the combination. When the combination is compromised, every authorized user must be notified of the new combination simultaneously. There is no way to grant access to one person without granting it to everyone who knows the code. And there is no audit trail. If the question is ever "did anyone enter this room on Tuesday at 3 PM," the mechanical pushbutton lock has no answer. American Locksets stocks mechanical pushbutton locks in the keypad and proximity locks section.

Electronic Keypad Locks

An electronic keypad lock runs on batteries, typically five AA cells on commercial-grade models, and stores multiple individual user codes in its internal memory. Each user gets a unique code. When that code is entered at the keypad, the lock releases and the event is logged in the audit trail with the user identifier, the time, and the date. Codes can be added or deleted at the keypad without touching the physical hardware on the door. Scheduled access windows can be programmed so a cleaning crew's code only works between specific hours. Automatic lockout after multiple failed PIN attempts provides protection against code-guessing attacks.

The commercial standard in this category is the Alarm Lock Trilogy series. The DL2700 stores 100 user codes and logs 40,000 audit events. The DL3200 handles 2,000 users with the same 40,000-event audit trail. The DL2700 and DL3200 are cylindrical lockset format, replacing a standard commercial cylindrical lever set with no door modification. The DL2700CR and DL3500 series cover mortise lock applications. All Trilogy locks use a Grade 1 all-metal weatherproof keypad and run approximately three years on five AA batteries under typical commercial use. The clutch mechanism on the outside lever is a key detail: the lever rotates freely when the code has not been entered, which means a frustrated user cannot force the lock open by applying torque to the lever. The lock only engages the latch retraction mechanism after a valid code.

Electronic keypad locks in this category are standalone, meaning they do not connect to a network or report to a central access control server in real time. Audit trail retrieval requires a physical connection using the Alarm Lock Data Transfer Module (DTM) or the PC interface cable with DL-Windows software. For facilities where real-time monitoring is not required and periodic audit retrieval is acceptable, standalone electronic keypad locks are the most cost-effective managed access solution available.

Proximity Card and Credential Locks

Proximity credential systems issue physical credentials, most commonly a card or fob, that the user presents to a reader. The reader validates the credential and the door releases. At the commercial level, proximity systems typically allow the same user management flexibility as electronic keypad locks, individual credential assignment, access schedules, audit trails, and instant credential deactivation, but with a fundamentally different user experience. The user does not need to remember a PIN. They carry a credential. This is the appropriate choice for facilities with large user populations, high turnover, or shift-based access where code management becomes impractical at scale.

A critical specification decision that most guides skip entirely: the difference between 125kHz proximity technology and 13.56MHz smart card technology. Legacy 125kHz proximity cards transmit an unencrypted card number in one direction only. The data never changes. Cloning devices that copy a 125kHz card are widely available for under $50 and take seconds to operate. A person with a cloner standing near a legitimate cardholder in a lobby or elevator can silently copy that credential. The cloned card is indistinguishable from the original at the reader. This is not a theoretical vulnerability. It is a documented attack vector used in physical penetration testing of commercial facilities routinely. For any application where credential security matters, 125kHz proximity is not an acceptable technology. The current commercial standard is 13.56MHz smart card technology, such as HID iClass SE, MIFARE DESFire EV2, and SEOS, which uses encrypted mutual authentication. Cloning a 13.56MHz smart card requires breaking AES-128 encryption, which is not a practical attack for commercial-level adversaries. When specifying proximity locks, always confirm whether the reader supports 13.56MHz smart card technology before ordering.

American Locksets stocks proximity credential locks from Alarm Lock, Dormakaba, and Cal-Royal. The Alarm Lock PDL3000 series combines PIN and HID-compatible 125kHz proximity reading in a single cylindrical lock body. Dormakaba Eplex series covers keypad and proximity in both cylindrical and mortise formats. The full selection is at keypad and proximity locks catalog.

Standalone vs. Networked: What Changes at Scale

Standalone electronic keypad and proximity locks work excellently for facilities with a limited number of controlled doors and a stable user population. When the facility grows beyond roughly 10 to 15 controlled doors, or when real-time credential management becomes necessary, the limitations of standalone architecture begin to create operational problems.

On a standalone lock, adding a new user means physically visiting each lock and entering the new code or enrolling the new credential at the keypad. Deleting a user who has left the organization requires the same physical visit to every door that person could access. For a single door, this takes two minutes. For 30 doors, it takes an afternoon and relies on someone remembering which doors the departing employee had access to. An employee can retain access to every door anyone forgot to update until someone audits the credential lists manually.

Networked electronic access systems, such as the Alarm Lock Trilogy Networx series, solve this by connecting locks to a central gateway over a wireless or wired network. Changes made at the central access control software propagate to every connected lock automatically. A departing employee's credentials are revoked across the entire facility in seconds from a single workstation, without anyone visiting a door. The Alarm Lock Networx system supports up to 2,000 locks per system through gateway modules, each covering up to 63 locks within a 900-foot clear-field wireless range. Audit trail data downloads automatically to the central server without requiring someone to physically connect to each lock.

For facilities with 1 to 10 controlled doors, standalone is almost always the right answer. For facilities with more than 15 doors, frequent user changes, or compliance requirements for real-time audit data, networked access control pays for itself rapidly in reduced administration labor. American Locksets stocks Alarm Lock Trilogy Networx products and accessories including the gateway modules and PC software needed for networked system deployment in the keypad and proximity locks section.

Keypad Lock Formats: Cylindrical, Mortise and Exit Trim

Electronic keypad and proximity locks are available in the same physical formats as standard commercial mechanical locks. The format must match the existing door preparation.

Cylindrical Keypad Locks

Cylindrical keypad locks replace a standard commercial cylindrical lever set in a 2-1/8-inch cross-bore door prep. Installation uses the same door preparation as any standard cylindrical lock, making retrofits on existing commercial doors fast and requiring no door modification. The Alarm Lock Trilogy DL2700 and DL3200 are the primary cylindrical format electronic keypad locks stocked at American Locksets. Both accept optional SFIC cylinder cores for integration with an existing interchangeable core key program.

Mortise Keypad Locks

Mortise keypad locks replace a standard commercial mortise lock in an existing mortise door preparation. They provide the same heavy-duty security and full function range as a mechanical mortise lock, with electronic keypad access added at the trim level. The Alarm Lock DL2700CR and DL3500 series cover mortise lock functions in the Trilogy platform. Dormakaba Eplex 2000 Series and 5000 Series mortise keypad locks cover a wide range of mortise functions including single-sided, double-sided, and deadbolt configurations with IC core options for Schlage, Best, and Corbin interchangeable core compatibility. For facilities running mortise locks throughout the building, the Dormakaba Eplex 5000 Series provides the correct mortise body with electronic keypad trim at the door.

Keypad Exit Trim

Keypad exit trim mounts on the outside of a door equipped with a panic exit device, providing electronic access control from the exterior while the inside push bar operates the exit device mechanically. The Dormakaba Eplex 2000 Series exit trim covers rim, mortise, and SVR exit devices with 100 user codes and a 1,000-event audit trail. Alarm Lock ETDLN Networx exit trim with pushbutton covers rim exit devices with a 2,000-user capacity and 40,000-event audit trail in the networked Trilogy platform. These are specified on exterior commercial entries where panic hardware is required on the egress side but electronic credential control is needed from the exterior.

Key Considerations Before Ordering

Several specification decisions affect the final product selection and must be confirmed before the order ships.

User capacity and audit trail depth determine which Trilogy model is correct. The DL2700 handles 100 users with 40,000 events. The DL3200 handles 2,000 users with the same audit depth. A facility with 80 regular users and some seasonal access does not need the DL3200. A school district with 300 staff using a single building entry does.

IC core compatibility determines which cylinder prep to order. Alarm Lock Trilogy locks are available in SFIC prep for BEST, Schlage, and other IC core programs. If the building runs a Schlage interchangeable core key program, the keypad lock must be ordered with the Schlage IC prep to accept the existing cores. Ordering the wrong cylinder prep means the mechanical key override does not work with the building's key program.

Backset matters exactly as it does on mechanical locks. Standard commercial backset is 2-3/4 inches. Ordering the wrong backset on a retrofit creates an alignment problem between the latch, the strike, and the door prep. Measure before ordering on any retrofit application.

Battery maintenance is a real operational consideration that facilities consistently underestimate. A standalone electronic keypad lock with five AA batteries lasts approximately three years at 10 cycles per day. At higher traffic volumes, battery life drops proportionally. A door cycling 50 times per day will need battery replacement in under a year. Establish a battery replacement schedule based on the actual anticipated cycle count per door, not the manufacturer's stated maximum battery life which assumes lower traffic.

The Credential Cloning Problem No One Tells Buyers

Most guides on commercial keypad and proximity locks do not address the 125kHz proximity cloning vulnerability at all. Many facilities operating today are running proximity card access control on legacy 125kHz credentials because the readers and cards were specified 10 to 15 years ago and never upgraded. The cards still work at the readers. The system appears to be functioning correctly. But anyone with a sub-$50 cloning device can copy a legitimate card from a building occupant in the proximity of a doorway, elevator, or common area without the cardholder's knowledge or consent. The cloned card will grant access to every door the original card opens.

The fix is not complicated but it requires replacing the credential system. Readers that support 13.56MHz smart card technology, and credentials in a format such as HID iClass SE or MIFARE DESFire EV2, provide mutual authentication where both the card and the reader verify each other using encrypted communication. A cloner cannot copy an iClass SE card because there is no static unencrypted number to copy. The cryptographic exchange between card and reader produces a different authentication token on every read. If a facility is currently running 125kHz proximity access control and the doors are not trivial low-security applications, credential technology upgrade is the most important access control improvement available. American Locksets can help specify the correct reader and credential combination for upgrade projects at 877-471-4870.

Why Choose American Locksets for Keypad and Electronic Access Locks

American Locksets has been an authorized commercial hardware distributor since 2001, stocking electronic keypad and proximity locks from Alarm Lock, Dormakaba, Cal-Royal, and Kaba. The complete keypad and proximity lock catalog, including standalone and networked Alarm Lock Trilogy products, Dormakaba Eplex cylindrical and mortise locks, and mechanical pushbutton options, is in the keypad and proximity locks section. Same-day shipping is available on stocked configurations.

Keypad and proximity locks at American Locksets ship alongside commercial mortise locks and cylindrical lever sets, exit devices and panic hardware, electric strikes for access control integration, and builders hardware on a single authorized dealer order. For help selecting the correct user capacity, IC core prep, format, and proximity credential technology for a specific project, call 877-471-4870 before ordering.

Frequently Asked Questions About Keypad and Electronic Access Locks

What is the difference between a mechanical pushbutton lock and an electronic keypad lock?

A mechanical pushbutton lock operates entirely without power or batteries. It uses a single shared combination and has no audit trail. It is reliable in remote or power-critical locations but cannot track individual access or manage multiple users separately. An electronic keypad lock runs on batteries, stores individual user codes, logs audit events with time and date stamps, and allows codes to be added or deleted without physical rekeying. For facilities that need to track who entered a door and when, or manage access for multiple users independently, electronic keypad is the correct choice.

How many users can an Alarm Lock Trilogy keypad lock hold?

The Alarm Lock Trilogy DL2700 Series stores up to 100 individual user codes with a 40,000-event audit trail. The DL3200 Series stores up to 2,000 user codes with the same 40,000-event audit capacity. Both are cylindrical format Grade 1 locks running on five AA batteries. The DL3200 is the correct specification when user population exceeds 100 or when the facility anticipates growth that would exceed the DL2700's capacity within a reasonable horizon.

What is the difference between standalone and networked electronic keypad locks?

A standalone electronic keypad lock manages users and audit trail data locally at the lock itself. Programming changes require physical access to the lock or a data transfer module connection. A networked lock communicates with a central access control server, allowing credential changes, schedule updates, and audit retrieval from a single workstation. Standalone is appropriate for 1 to 10 doors with stable user populations. Networked systems become the correct choice when facilities grow beyond 15 doors or when real-time credential revocation is a security requirement.

Why is 125kHz proximity card technology a security risk?

Legacy 125kHz proximity cards transmit an unencrypted fixed card number in one direction only. Cloning devices available for under $50 can silently copy a 125kHz card from its legitimate holder without contact. The cloned credential is indistinguishable from the original at the reader and grants identical access. For any door that carries meaningful security requirements, 125kHz proximity is not an acceptable credential technology. The current commercial standard is 13.56MHz smart card technology using encrypted mutual authentication, such as HID iClass SE or MIFARE DESFire EV2, which cannot be cloned by practical commercial-level attacks.

Can electronic keypad locks use an interchangeable core cylinder for key override?

Yes. Alarm Lock Trilogy cylindrical and mortise keypad locks are available with SFIC prep for BEST, Schlage, and other IC core programs, and with LFIC prep for Schlage large-format cores. When ordering a keypad lock for a facility that runs an existing interchangeable core key program, confirm the correct IC prep before ordering. The mechanical key override on an electronic keypad lock uses the same core system as the facility's other locks, allowing the building master key to operate every door including the keypad-controlled ones.

How long do batteries last in a commercial electronic keypad lock?

The Alarm Lock Trilogy DL2700 and DL3200 run on five AA alkaline batteries with a typical service life of approximately three years at moderate commercial use, roughly 10 access events per day. Higher traffic volumes reduce battery life proportionally. A door cycling 50 times daily may need battery replacement in under a year. Most commercial electronic keypad locks provide a low-battery warning at the keypad and some emit audible alerts. Establish a battery replacement schedule based on the door's actual anticipated daily cycle count rather than the manufacturer's maximum rated battery life.

Which keypad and electronic lock brands does American Locksets carry?

American Locksets stocks electronic keypad and proximity locks from Alarm Lock (Trilogy DL2700, DL3200, DL3500, PDL3000 proximity series, and Networx networked products), Dormakaba (Eplex 2000 and 5000 Series in cylindrical, mortise, and exit trim formats), Cal-Royal, and Kaba. Mechanical pushbutton locks are also available. The complete catalog is in the keypad and proximity locks section at American Locksets, with same-day shipping on stocked configurations.