Alarm Lock Trilogy 4100 Grade ...
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$1,641.35
$748.68
Alarm Lock Trilogy DL4100 Grade 1 Electronic Cylindrical Lock with Privacy Function and Keypad — Satin Chrome (US26D), outside and inside views

Alarm Lock Trilogy 4100 Grade 1 Electronic Cylindrical Lock with Privacy Function and Keypad

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Model: DL4100/26D
From the Trilogy 4100 Collection
$1,641.35
$748.68
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Alarm Lock Trilogy 4100 (DL4100) Grade 1 Electronic Cylindrical Lock - Privacy Keypad

Professional Grade 1 Electronic Access Control with Privacy & Residency Features

The Alarm Lock Trilogy 4100 (DL4100) is a battery-operated electronic cylindrical lock built for commercial environments where privacy control and audit accountability matter. The all-metal 12-button keypad supports up to 2,000 user codes across four access levels - Master, Management, Supervisor, and basic user - and logs up to 40,000 timestamped events for compliance and security monitoring. Privacy mode locks out all basic user codes for a programmable duration; the residency feature lets occupants exit without re-locking the door. Operates from -31°F to +151°F on five AA alkaline batteries (included), with no hardwiring required.

Key Features & Benefits

  • Grade 1 Commercial Rating: BHMA Certified heavy-duty cylindrical lockset meeting the highest ANSI/BHMA standards for demanding commercial use.
  • 2,000 User Code Capacity: Four-level access hierarchy (Master, Management, Supervisor, basic user) for comprehensive credential management.
  • Privacy Pushbutton Function: Interior pushbutton locks out all keypad codes for a programmable time period - ideal for hotel rooms, healthcare exam rooms, and private offices.
  • Residency Feature: Allows occupants to exit without locking the door, reducing friction in multi-tenant and hospitality applications.
  • 40,000-Event Audit Trail: Real-time clock with timestamped event logging for security monitoring and compliance documentation.
  • Battery Operated - No Wiring Required: Five AA alkaline batteries (included) deliver up to 60,000 typical cycles. No electrical rough-in needed.
  • Extreme Temperature Range: Rated -31°F to +151°F for reliable performance in unconditioned spaces, exterior vestibules, and cold-storage corridors.
  • UL Listed, Fire Rated: UL Listed 10C Positive Pressure; latchbolt UL Listed fire rated 3 hours, ½" throw reversible.
  • ADA Compliant Levers: Meets ADA lever requirements for accessible commercial installations.
  • IC Core Options Available: Standard model accepts conventional cylinder with key override; IC variants prepped for Schlage FSIC, Corbin Russwin LFIC, Sargent LFIC, and Yale LFIC - less core.
  • 2-Year Limited Warranty: Manufacturer-backed coverage for commercial installations.

Technical Specifications

  • Door Thickness: 1-5/8" to 1-7/8"
  • Backset: 2-3/4" standard (2-3/8" also available)
  • Strike: 1-1/8" x 2-3/4" T-strike and 1-1/4" x 4-7/8" ASA strike included
  • Latchbolt: UL Listed, fire rated 3 hours, 1/2" throw reversible
  • Handing: Non-handed
  • Power: 5 AA alkaline batteries (included); up to 60,000 typical cycles
  • Keypad: All-metal, 12-button; all functions programmed through keypad
  • Cylinder (Standard): 6-pin solid brass, SC1 keyway; compatible with Schlage, Corbin Russwin CL, Sargent 480 series, ASSA 65-611, and Lori cylinders using HW620 tailpiece (supplied)
  • IC Core Compatibility: Standard model accepts 6 & 7-pin cylinders from Arrow, KSP, Medeco Keymark, and Kaba Peaks; IC models prepped for Yale, Medeco, Sargent, Corbin Russwin, and Schlage
  • Compliances: BHMA Certified Grade 1, UL Listed 10C Positive Pressure, ADA compliant levers

Installation Overview

  1. Confirm door thickness (1-5/8" to 1-7/8") and backset (2-3/4" standard) before ordering.
  2. Select cylinder option: Standard conventional cylinder with key override, or IC prep (Schlage FSIC, Corbin Russwin LFIC, Sargent LFIC, or Yale LFIC - less core).
  3. Install per Alarm Lock DL4100 installation instructions. No electrical wiring required - the lock is fully battery operated.
  4. Insert five AA alkaline batteries (included). All programming is performed through the keypad.
  5. Program user codes, privacy duration, and access levels via the keypad per the Alarm Lock programming guide.
  6. Test normal entry, privacy lockout, residency exit, and audit trail logging before completing installation.

Typical Applications

  • Hotel and hospitality guest rooms
  • Healthcare exam rooms and private offices
  • Multi-tenant residential and commercial buildings
  • Educational facilities
  • Government and institutional facilities
  • Commercial office buildings requiring privacy and audit accountability

Product Specs

Series:
Trilogy 4100
Grade:
Grade 1
Standard Cylinder:
Conventional Cylinder
Power:
Battery Operated
Warranty:
2 Year Limited
Application:
Pushbutton Keypad
Lock Type:
Cylindrical
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Subcategory:
Cylindrical Locks
Reader Type:
Keypad
Commercial/Residential:
Commercial
Electronic:
Yes
Product Type:
Cylindrical Locks
Batteries:
AA (5)
Battery Operated:
Yes
Lock Function:
Privacy/Bed/Bath
Product Attribute:
Electronic Locks
Product Model:
DL4100
Product Function:
Privacy/Bed/Bath
Door Thickness Range:
1-5/8" to 1-7/8"
Door Strike:
T-Standard and ASA
Product Category:
Electronic Locks
Collection:
Trilogy 4100
Backset (Distance):
2-3/4"
Department:
Door Hardware

Alarm Lock DL4100/26D – Frequently Asked Questions

1) Will the Alarm Lock DL4100 Trilogy fit a standard 1-3/4 inch commercial door?
Yes. The DL4100 covers a door thickness range of 1-5/8 to 1-7/8 inches, so 1-3/4 inch commercial doors sit right in the middle of it. Standard backset is 2-3/4 inches, with 2-3/8 inches also available. If your doors are thinner than 1-5/8 inches, this is the wrong lock for the opening.
2) Does the DL4100 keypad lock need wiring or an electrical rough-in?
No wiring at all. The Trilogy 4100 runs on five AA alkaline batteries (included) and is rated for up to 60,000 typical cycles. All programming, including user codes, privacy duration, and access levels, is done at the 12-button metal keypad, so there is no controller, no reader cable, and no electrician needed on the opening.
3) What does the privacy function actually do on an electronic lock like the Trilogy DL4100?
An interior pushbutton locks out every basic user code for a programmable length of time, so a room in use cannot be opened by staff codes. A residency feature lets the occupant leave without the door re-locking behind them. Master, Management, and Supervisor levels sit above the basic users, so supervisory access is still available. This is the behavior you want on hotel guest rooms, healthcare exam rooms, and private offices.
4) Will the DL4100 latch into the strike I already have in the frame?
Both strikes ship with the lock, so you are covered either way: a 1-1/8 x 2-3/4 inch T-strike for a wood frame and a 1-1/4 x 4-7/8 inch ASA strike for a hollow metal frame. The latchbolt has a 1/2 inch throw and is reversible, and the lock itself is non-handed, so it goes on a left or right hand door without ordering a different part.
5) Can the Alarm Lock DL4100 go on a fire rated door?
Yes. The latchbolt is UL Listed and fire rated for 3 hours, and the lock is UL Listed 10C Positive Pressure. It is BHMA Certified Grade 1, and the levers meet ADA requirements, which is the combination most institutional and healthcare specs call for on a rated opening.
6) Which cylinder option do I order if my building is keyed on Schlage SFIC cores?
Order the IC-S Schlage FSIC prep, which comes less core so you supply your own from the existing system. Six cylinder choices exist: the standard conventional cylinder with key override, plain SFIC prep, IC-C for Corbin Russwin 6-pin LFIC, IC-R for Sargent LFIC, IC-S for Schlage FSIC, and IC-Y for Yale 6-pin LFIC. Every one of the six is offered in both US10B oil rubbed bronze and US26D satin chrome.
7) What keys work with the standard cylinder version of the Trilogy 4100?
The standard model uses a 6-pin solid brass cylinder in the SC1 keyway for key override. It also accepts Schlage, Corbin Russwin CL, Sargent 480 series, ASSA 65-611, and Lori cylinders using the supplied HW620 tailpiece, plus 6 and 7-pin cylinders from Arrow, KSP, Medeco Keymark, and Kaba Peaks. That range is what lets a locksmith bring the lock onto an existing master key system instead of starting a new one.
8) I need a keypad lock but my doors are 2 inches thick. What else can I use?
The Trilogy 4100 tops out at 1-7/8 inches, so it will not work there. Two battery-powered keypad options go thicker: the SDC E75 Series covers 1-3/4 to 2-1/8 inches, and the TownSteel XCE-2000 Series, a Grade 1 electronic cylindrical lockset with keypad, covers 1-3/4 to 2 inches. Check the function you need, though, since the XCE-2000 is a classroom lock rather than privacy.
9) What is the closest equivalent to the Alarm Lock DL4100 from another manufacturer?
The Schlage CO-100 standalone electronic cylindrical lock is the nearest match. Like the DL4100, it is a Grade 1 keypad-operated cylindrical lock in a Privacy/Bed/Bath function with cylinder options, so it covers the same hotel room, exam room, and private office openings. The main practical difference at the door is thickness: the CO-100 is listed for 1-3/4 inch doors, while the DL4100 covers a 1-5/8 inch to 1-7/8 inch range, so on a 1-5/8 inch door the DL4100 is the one that fits.
10) Which keypad lock should be used on a classroom door instead of the DL4100?
The DL4100 is built as a Privacy/Bed/Bath lock, which is not a classroom function. For classroom openings, the TownSteel XCE-2000 is a Grade 1 electronic cylindrical lockset with a keypad in a classroom function, fitting doors 1-3/4 inch to 2 inch. Where the requirement is classroom intruder capability, the TownSteel XCE-9000 is the Grade 1 electronic classroom intruder cylindrical lockset with keypad, also 1-3/4 inch to 2 inch. Both keep keypad credential entry while changing the lock function to what a classroom spec calls for.
11) Do I have to specify keying when I order the DL4100?
Yes, keying is a required selection: keyed different, keyed alike, or to a key code. Pick keyed alike when several doors in the same suite or building should take one override key, and enter your key code if the facility is already on a system. Finish and cylinder prep are separate choices, in US10B oil rubbed bronze or US26D satin chrome.
12) Will an electronic keypad lock hold up in an unheated corridor or exterior vestibule?
The Trilogy 4100 is rated from -31F to +151F, which covers unconditioned corridors, exterior vestibules, and cold storage runs where most consumer-grade keypads quit. It is a Grade 1 commercial cylindrical lockset, not a residential unit.
13) How is the DL4100 different from the Schlage CO-100 keypad lock?
Both are Grade 1 standalone electronic cylindrical locks with a privacy function and a keypad, so they answer the same job. The difference that decides it is the opening: the Schlage CO-100-CY-40-KP is listed for 1-3/4 inch doors, while the Trilogy 4100 covers 1-5/8 to 1-7/8 inches. On doors that are not exactly 1-3/4, the Alarm Lock has the wider window.
14) Do I need the audit trail, or would a plain mechanical privacy lock do the job?
If nobody has to prove who opened the door, a mechanical privacy lockset such as the Cal-Royal CAL20, a Grade 1 privacy/bed/bath lock covering 1-3/8 to 2 inch doors, is the simpler buy with no batteries and no programming. Choose the Trilogy 4100 when you need credential control and accountability: 2,000 user codes across four levels and 40,000 timestamped events with a real-time clock.
15) Can I manage the Trilogy 4100 from a phone or over the network?
No. The DL4100 is a standalone keypad lock, programmed entirely at the 12-button keypad with no wiring and no wireless reader. If you want credentials pushed from software or a phone, look at a networked or Bluetooth-enabled Grade 1 cylindrical lock instead, such as the Schlage NDEB ENGAGE Series with its 2.4 GHz Bluetooth Low Energy reader, which fits 1-5/8 to 2 inch doors, or the CENTRIOS CEB100 Grade 1 smart Bluetooth cylindrical lock.
16) Is there a simpler mechanical privacy lock that costs less to maintain than an electronic keypad lock?
Yes. The Cal-Royal CAL20 Calypso Series is a Grade 1 extra heavy duty cylindrical lock in the same Privacy/Bed/Bath function, with no batteries, no codes, and no audit trail to manage. It also spans a wider door range at 1-3/8 inch to 2 inch, against the DL4100 range of 1-5/8 inch to 1-7/8 inch. The trade is capability: the DL4100 carries a keypad with up to 2,000 user codes and a 40,000-event audit trail, which the CAL20 does not offer. Choose the CAL20 where privacy is all the opening needs, and the DL4100 where coded access and event logging are required.
17) Can an SDC E75 be swapped in where a DL4100 was specified?
Not on every door. The SDC E75 Series is a battery-powered electronic cylindrical lockset with keypad access control, so the credential method and the battery-powered, unwired approach line up with the DL4100, which runs on five AA batteries with no hardwiring. The difference is the opening: the E75 is listed for 1-3/4 inch to 2-1/8 inch doors, while the DL4100 covers 1-5/8 inch to 1-7/8 inch. On a 1-3/4 inch door the two overlap; on a 1-5/8 inch door only the DL4100 applies, and above 1-7/8 inch only the E75 does.
18) What is the difference between the Alarm Lock DL4100 and the SDC Electra 7200?
They are powered differently and belong to different systems. The SDC Electra 7200 Series is a solenoid controlled cylindrical lock running on dual voltage 12/24VDC, so it needs power run to the door and an access control system or reader to release it, and it fits 1-3/4 inch to 2 inch doors. The DL4100 is battery operated on five AA cells with no hardwiring, and every function is programmed at the keypad. A 7200 is the choice when the opening is already tied into a wired system; the DL4100 suits a door with no electrical rough-in.
19) Which keypad locks accept an interchangeable core for a facility already keyed on SFIC?
The BEST 9KZ EZ Series is an electronic keypad cylindrical lock with a key override function, from a line built around interchangeable core keying. The DL4100 covers the same requirement directly through its cylinder options: an SFIC prep less core version, plus Corbin Russwin 6-pin LFIC, Sargent LFIC, Schlage FSIC, and Yale 6-pin LFIC preps, each offered in oil rubbed bronze and satin chrome. If the facility standard is a specific large-format core, the DL4100 prep list is where to match it.
20) Is the Kwikset SmartCode 912TNL a substitute for the DL4100 on a commercial door?
They are not interchangeable specifications. The Kwikset 912TNL ZW500 SmartCode is an electronic Tustin lever with Z-Wave technology in a keyed-one-side function, fitting 1-3/8 inch to 2 inch doors, and it is built to be driven from a Z-Wave home automation controller. The DL4100 is a BHMA Certified Grade 1 commercial lock with a privacy function, a 2,000-code four-level hierarchy, and a 40,000-event audit trail programmed at the keypad. Where a project spec calls for Grade 1 and an audit record, the 912TNL does not carry those claims.
21) What looks like a keypad lock alternative but is only a mechanical pushbutton lock?
The Lockey line is mechanical, not electronic. The Lockey 1600 is a heavy duty mechanical keyless knob lock with an adjustable backset for 1-1/8 inch to 2 inch doors, and the Lockey 2830 is a mechanical pushbutton keyless knob lock with an auto-locking passage function over the same door range. Both open on a code at a pushbutton face, which looks similar at the door, but neither is battery powered and neither keeps a code hierarchy or an event log. The DL4100 is an electronic lock supporting 2,000 user codes across four access levels with 40,000 timestamped events. If the requirement is accountability, a mechanical pushbutton lock does not meet it.
22) What should go on the corridor or entry door when the DL4100 goes on the private rooms?
The DL4100 is a Privacy/Bed/Bath lock, so a corridor or office entry opening needs a different function. The Dorma C853 is a Grade 1 entry keyed single cylinder lever lockset from the C800 Series, fitting 1-3/8 inch to 2-1/4 inch doors, and the Dorma C150 is a Grade 1 heavy-duty cylindrical lock in an entry/office function over the same door range. The Marks USA 195RAB is a Grade 1 Survivor Series entry clutched lever lockset supplied less core, which suits a facility keying its own cores. All three keep Grade 1 on the corridor while the coded privacy hardware stays on the rooms.
23) Which privacy lock covers doors thicker than 1-7/8 inch?
The DL4100 is listed for 1-5/8 inch to 1-7/8 inch doors. For a thicker leaf in the same Privacy/Bed/Bath function, the Cal-Royal CAL20 Calypso Series is a Grade 1 extra heavy duty privacy lock rated 1-3/8 inch to 2 inch. In a medium duty Grade 2, the Orca Hardware OCL240 is a privacy cylindrical lockset in the same function. On a 2 inch door, the CAL20 keeps the Grade 1 rating that a commercial spec usually calls for.
24) Can one person manage codes across a portfolio of doors with these locks?
Each DL4100 holds up to 2,000 user codes in a four-level hierarchy: Master, Management, Supervisor, and basic user. That lets a property manager give maintenance a code that privacy mode will lock out, keep a management code that is not affected, and pull a 40,000-event log off the door when there is a dispute. Codes are entered at the keypad on each lock, so a large fleet is a per-door task.
25) What is the difference between the DL4100 and the Accentra nexTouch NTB613?
Both are Grade 1 cylindrical keypad locks with pushbutton entry, so either can hold a coded opening in a commercial building. The distinction to work from is function and credential management: the DL4100 is specified in a Privacy/Bed/Bath function with a privacy pushbutton that locks out all basic user codes for a programmable period and a residency feature that lets an occupant exit without re-locking. Those two behaviors are what make it the hotel-room and exam-room lock rather than a general coded entry lock.
26) If a door only needs to latch with no locking at all, what replaces the DL4100?
A passage lockset, not an electronic lock. The Marks USA 195N is a Grade 1 Survivor Series ADA compliant passage lever lockset, and the Cal-Royal CAL30 Calypso Series is a Grade 1 extra heavy duty passage lock fitting 1-3/8 inch to 2 inch doors. In a medium duty Grade 2, the Orca OCL210 is a passage cylindrical lockset. All three drop the credential entirely; the DL4100 is a privacy-function lock with a keypad and is more hardware than a pure passage opening needs.
27) Which Grade 1 alternatives hold up in a facility that standardizes on Grade 1 across every opening?
The DL4100 is a BHMA Certified Grade 1 cylindrical lock, and several peers carry the same rating for other functions: the Dorma C150 in entry/office and the Dorma C853 in entrance, both 1-3/8 inch to 2-1/4 inch; the Cal-Royal CAL20 in privacy and CAL30 in passage, both 1-3/8 inch to 2 inch; and the Marks USA 195N in passage. On the electronic side, the Schlage CO-100 in privacy and the TownSteel XCE-2000 in classroom are both Grade 1. Peers such as the Marks USA 175RF storeroom lever and the Orca OCL250 entrance lockset are Grade 2 and would break a Grade 1 standard.
28) Is the Lockey E985 or E995 a match for the DL4100?
They are electronic keypad lever locks, but they land on different doors and different feature sets. The Lockey E985 is an electronic keypad lever lock with remote control and key override, and the E995 is an electronic keypad lever lock with remote control and battery power; both are listed for 1-3/8 inch to 1-3/4 inch doors. The DL4100 covers 1-5/8 inch to 1-7/8 inch, so on a 1-7/8 inch door the Lockey units are out of range. The DL4100 also carries a BHMA Certified Grade 1 rating and a 40,000-event audit trail, which is what a compliance-driven spec is usually after.
29) What goes on the inactive leaf or a pull-only door in the same project as a DL4100?
A dummy trim, which has no latch and no credential. The Dorma C501 is a single dummy trim keyless lever lockset, Grade 2, for 1-3/8 inch to 1-3/4 inch doors, the Dorma CL701 is a Grade 2 single dummy non-keyed cylinder lever lockset, and the Orca OCL2170 is a Grade 2 half dummy lever. These match the lever appearance on the opening without operating hardware; the DL4100 keypad and privacy function belong on the doors that actually secure.
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Does the Alarm Lock DL4100/26D come with a warranty?
Absolutely. The Alarm Lock DL4100/26D is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Alarm Lock DL4100/26D?
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