Commercial Access Control: what Claude and GPT would buy

Two AI models chose on their own, with no web access. Nobody tested these products: this is what each one says, and how to check it.

They disagree: Claude chooses Alarm Lock and GPT chooses Schlage

In Industrial & Scientific, Claude and GPT choose the same brand in 52 of 107 categories.

Claude Opus 5.5 · October 28, 2026

Alarm Lock Trilogy (line)

Trilogy standalone keypad and prox locks give one or a few doors PIN or card access with audit trail and scheduling, with no controller, wiring or software server needed.

Not for: Sites with many doors that need central management, live lockdown or integration with video and HR systems; they need a networked controller and reader system.

GPT 6.1 Sol · November 10, 2026

Schlage CO Series CO-100

Commercial-grade standalone keypad lock with individual access codes and straightforward programming, without requiring network infrastructure.

Not for: Facilities needing centralized remote management or mobile credentials.

Claude also picks Schlage for “cloud-managed standalone lock”.

Which one fits you

cloud-managed standalone lock

Schlage CO-Series (line)

A long-established commercial standalone electronic lock line with keypad and card options from a major commercial hardware maker.

Not for: Buyers who want the cheapest keypad lock for a storage room.

Check before you buy

Standalone vs networked. Standalone locks suit roughly one to a handful of doors; beyond that, or when credentials must be revoked centrally, use a networked controller Updating many standalone locks one by one becomes unmanageable and slow to revoke lost cards.
Credential technology. Prefer 13.56 MHz encrypted credentials such as Seos, iCLASS SE or DESFire over 125 kHz prox for new installs 125 kHz prox cards can be cloned with cheap tools.
Life-safety egress. Free egress must remain possible from the secure side; electrified locking on egress doors must follow local building and fire code (IBC / NFPA 101) Code violations here are a fire-safety risk and fail inspections.
Fail-safe vs fail-secure. Stairwell and fire-rated egress doors typically need fail-safe or code-compliant release; perimeter doors are usually fail-secure It determines what happens to the door during a power loss or fire alarm.
Reader-to-controller protocol. Choose OSDP-capable readers and controllers for new systems; Wiegand only for legacy compatibility OSDP is supervised and can be encrypted; Wiegand is unencrypted and easy to sniff.

Where to find Alarm Lock Trilogy

GoKeyless
Taylor Security
Trudoor

Shops seen in search results on November 5, 2026. A shop missing here may sell it too. Nothing was checked by a person.

Brands that matter

Alarm Lock: Standalone Trilogy keypad and prox locks common in schools and offices.
Schlage: Allegion's commercial locks and electronic access hardware.
HID: Dominant brand for readers and credentials.
Securitron: Assa Abloy maglocks and access power hardware.
Kantech: Access control controllers and readers for small to mid sites.
Altronix: Access control power supplies and power distribution.

What to avoid

Consumer smart locks on commercial doors that need code compliance and a durability grade.
Systems that store credentials only on the device with no audit trail on doors that need accountability.
New installs built on 125 kHz prox only.

Questions

Do I need an electrician or integrator?

Standalone battery locks usually do not; wired readers, maglocks and strikes on egress or fire-rated doors normally need a licensed installer and code review.

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