Alarm Lock Trilogy 4100 Electr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,386.48
$1,351.82
Alarm Lock Alarm Lock PDL4100 Trilogy Proximity/Keypad Privacy Lock Standard Cylinder ALA-PDL4100

Alarm Lock Trilogy 4100 Electronic Proximity/Keypad Privacy Lock Grade 1 with 2000 User Capacity

(No reviews yet) Write a Review

Model: PDL4100/26D
$2,386.48
$1,351.82
Selected Finish is

In Stock (leaves warehouse same day if ordered before 3pm ET)

$2,386.48
$1,351.82
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Alarm Lock Trilogy 4100 Electronic Proximity/Keypad Privacy Lock Grade 1 with 2000 User Capacity

Professional Grade 1 Electronic Access Control with Privacy & Residency Features

Electronic battery operated digital proximity lock. Reads 26–37 bit HID card and keyfob formats. Privacy feature locks out all basic users for a programmed amount of time. Residency feature allows exiting without having to lock the door. The Alarm Lock Trilogy 4100 Electronic Proximity/Keypad Privacy Lock delivers professional-grade access control with advanced privacy and residency features for commercial applications. This Grade 1 cylindrical lock operates on battery power with 5 AA batteries and accommodates up to 2000 PIN or PIN/Proximity user codes with comprehensive 40,000 event audit trail capabilities. Designed for door thickness range of 1-5/8" to 1-7/8" with 2-3/4" backset, this weatherproof lock operates reliably in temperatures from -31°F to +151°F for diverse environmental conditions.

Professional Features & Benefits

  • Grade 1 Commercial Rating: Meets the highest security standards for commercial applications with superior durability and performance tested to ANSI/BHMA specifications.
  • Extensive User Capacity: Accommodates up to 2000 PIN or PIN/Proximity user codes for comprehensive access management in large facilities.
  • Privacy Pushbutton Control: Enables temporary lockout of all keypad codes for enhanced security during occupied periods with instant privacy activation.
  • Comprehensive Audit Trail: 40,000 event audit trail provides detailed access logging and monitoring capabilities for security management and compliance.
  • Battery-Powered Operation: 5 AA battery system delivers up to 60,000 cycles of reliable operation without hardwired power requirements for flexible installation.
  • Weatherproof Construction: Operates reliably in extreme temperatures from -31°F to +151°F (-35°C to +66°C) for diverse environmental conditions and outdoor applications.
  • Door Compatibility: Designed for door thickness range of 1-5/8" to 1-7/8" with standard 2-3/4" backset for versatile installation options.
  • Manufacturer Warranty: 2 Year Limited warranty coverage provides added confidence and protection for long-term reliability.

Technical Specifications

  • Door Thickness: Fits 1 5/8" to 1 7/8"
  • Backset: 2 3/4" (2 3/8" also available)
  • Strike: 1 1/8" x 2 3/4" T strike & 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)
  • Keypad: Weatherproof all metal, 12 button. Proximity antenna housing molded of ultra high strength, impact resistant Lexan®
  • Door Prep: Standard ANSI A115 Series prep, modified by adding additional through-bolt holes
  • Compliances: BHMA Certified Grade 1 heavy duty cylindrical lockset. UL Listed to the 10C Positive Pressure Specification. ADA compliant levers
  • Cylinder: 6 pin solid brass, SC1 keyway. Schlage, Corbin-Russwin CL, Sargent 480 series, ASSA 65-611 & Lori cylinders compatible with HW620 tailpiece (supplied)
  • Interchangeable Core Models: Standard model accepts 6 & 7 pin cylinders from Arrow, KSP, Medeco Keymark & Kaba Peaks. IC core models prepped for 6 & 7 pin Yale, Medeco, Sargent, Corbin-Russwin & Schlage also available

Installation & Operation

  1. Verify electrical requirements and confirm 5 AA battery capacity before proceeding with installation.
  2. Prepare door according to manufacturer specifications ensuring door thickness is within 1-5/8" to 1-7/8" range and 2-3/4" backset requirements.
  3. Mount the cylindrical lock unit in the specified location ensuring proper alignment with door strike (T-Standard and ASA compatible).
  4. Install 5 AA batteries and configure operational settings including user codes, proximity card programming, and privacy pushbutton functions per application requirements.
  5. Program up to 2000 PIN or PIN/Proximity user codes and configure audit trail settings for security management needs.
  6. Test all functions including normal operation, privacy lockout feature, proximity card reading, and keypad entry to verify proper performance.
  7. Complete final inspection and document user codes and settings. Refer to manufacturer documentation for complete programming instructions, audit trail management, and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Healthcare Facilities
  • Educational Institutions
  • Hospitality Properties
  • Multi-Tenant Buildings
  • Government Facilities
  • Professional Services

Why Choose Alarm Lock Quality?

Alarm Lock delivers professional-grade electronic access control solutions with Grade 1 commercial rating and comprehensive 2 Year Limited warranty coverage. The weatherproof construction and extensive temperature range from -31°F to +151°F ensure reliable performance in diverse environmental conditions, while the 40,000 event audit trail and 2000 user code capacity provide the security management capabilities required for demanding commercial applications.

Product Specs

Series:
Trilogy 4100
Grade:
Grade 1
Standard Cylinder:
Conventional Cylinder
Power:
Battery Operated
Warranty:
2 Year Limited
Application:
Proximity Card/Pushbutton Keypad
Lock Type:
Cylindrical
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Subcategory:
Cylindrical Locks
Reader Type:
Keypad
Commercial/Residential:
Commercial
Product Type:
Cylindrical Locks
Batteries:
AA (5)
Battery Operated:
Yes
Lock Function:
Privacy/Bed/Bath
Electronic:
Yes
Product Attribute:
Electronic Locks
Product Model:
PDL4100
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
Backset (Distance):
2-3/4"
Department:
Door Hardware

Alarm Lock PDL4100/26D – Frequently Asked Questions

1) What does the privacy function on the Trilogy PDL4100 actually do, and can someone still get out?
Pressing the privacy pushbutton locks out all basic user codes for a programmed length of time, so a room in use cannot be opened by the general population of PIN or card holders. Egress is unaffected: the residency feature lets an occupant leave without having to re-lock the door behind them. That is the behavior a hotel guest room, a dorm, an exam room, or a shared restroom needs, which is why the PDL4100 is built as a privacy/bed/bath function rather than an entry or storeroom lock.
2) Can I keep my existing keyway and master key system with the Alarm Lock PDL4100?
Mostly yes, and how depends on which cylinder version you order. The standard model ships with a 6 pin solid brass SC1 keyway cylinder for key override, and the supplied HW620 tailpiece lets it accept Schlage, Corbin-Russwin CL, Sargent 480 series, ASSA 65-611 and Lori cylinders. It also takes 6 and 7 pin cylinders from Arrow, KSP, Medeco Keymark and Kaba Peaks. If you run interchangeable cores, order one of the IC preps instead: SFIC, or LFIC prepped for Corbin Russwin 6-pin, Medeco, Sargent, Schlage FSIC, or Yale 6-pin. All IC versions ship less core, so the core comes from your existing system.
3) Do I need to change my strike when installing a Trilogy PDL4100, and will it latch into what is there?
Both strikes come in the box: a 1-1/8 x 2-3/4 inch T strike and a 1-1/4 x 4-7/8 inch ASA strike, so whichever of the two standard preps your frame has is covered. The latchbolt has a 1/2 inch throw and is reversible, and the lock is non-handed, so it goes on a left or right hand door without ordering a hand. If your frame is cut for something other than a T or ASA strike, plan on frame work.
4) What credentials does the Alarm Lock PDL4100 read, and how many users can it hold?
The PDL4100 reads both a PIN on the keypad and HID proximity cards or keyfobs in 26 to 37 bit formats, so an existing HID badge population can be enrolled without reissuing credentials. Capacity is up to 2000 PIN or PIN/proximity users, with a 40,000 event audit trail for pulling who went through the door and when.
5) Does the Trilogy PDL4100 need to be wired, and what happens on the door if power is not run to it?
No wiring. The PDL4100 runs on 5 AA alkaline batteries, included, rated for up to 60,000 cycles, so there is no power supply, no transformer, and no door loop to install. That is the practical difference against a wired electric lock like the SDC Electra 7200 Series, which is a solenoid controlled cylindrical lock on dual voltage 12/24VDC and needs power run to the opening. If you are retrofitting an existing mechanical opening without pulling wire, the battery lock is the one that installs in an afternoon.
6) What do I have to specify when ordering the Alarm Lock PDL4100?
Three decisions. Cylinder: standard conventional cylinder with key override, or one of the less-core IC preps (SFIC, Corbin Russwin 6-pin LFIC, Medeco LFIC, Sargent LFIC, Schlage FSIC, Yale 6-pin LFIC). Finish: US10B oil rubbed bronze or US26D satin chrome, and every cylinder option is offered in both. Keying: keyed different, keyed alike, or to a specific key code, which you supply on the order. Remember the IC versions arrive without a core, so the core has to come from your own stock or be ordered separately.
7) Does the Trilogy PDL4100 have a key override if the batteries die or a code is lost?
Yes. The standard version is ordered as key override with a conventional cylinder, 6 pin solid brass in an SC1 keyway, so a mechanical key gets the door open independent of the electronics. The IC-prep versions carry the same override through your own interchangeable core. For a facility running a master key system, that means the PDL4100 stays on the master even though day to day access is by PIN or proximity card.
8) Will the Orca OCL240 privacy lockset work where an Alarm Lock PDL4100 is specified?
Only where the spec allows Grade 2. The Orca Hardware OCL240 is a medium duty Grade 2 privacy cylindrical lockset in a Privacy/Bed/Bath function. The Alarm Lock PDL4100 is a BHMA certified Grade 1 heavy duty cylindrical lockset in the same Privacy/Bed/Bath function, UL Listed to the 10C positive pressure specification with ADA compliant levers. If the drawing calls out Grade 1 or the opening is a fire door assembly, the OCL240 does not meet that call.
9) What is the closest equivalent to the Alarm Lock Trilogy PDL4100 if the door only accepts a 1-3/4 inch thick leaf and I want a Grade 1 electronic privacy lock?
The Schlage CO-100-CY-40-KP is the closest match on function. It is a standalone electronic cylindrical lock with keypad access and a Privacy/Bed/Bath function at Grade 1 heavy duty, sized for a 1-3/4 inch door thickness. The Alarm Lock PDL4100 is also a Grade 1 Privacy/Bed/Bath cylindrical lock, but it covers a 1-5/8 inch to 1-7/8 inch door thickness range and adds proximity card reading alongside the pushbutton keypad. If the opening is a fixed 1-3/4 inch door, both land in range; if the door is 1-5/8 inch, the PDL4100 is the one that covers it.
10) I need a Grade 1 privacy lock for a restroom but no electronics or batteries. What should I use instead of the Trilogy PDL4100?
The Cal-Royal CAL20 Calypso Series is the mechanical route. It is a Grade 1 extra heavy duty Privacy/Bed/Bath lock covering a 1-3/8 inch to 2 inch door thickness range, with no batteries or programming involved. The Alarm Lock PDL4100 carries the same Grade 1 rating and Privacy/Bed/Bath function but is battery operated on 5 AA cells and reads proximity cards and keypad codes, so it brings user codes and audit capability the CAL20 does not. For a single restroom door where nobody needs credentials, the CAL20 does the job with a wider door thickness range.
11) Is the Schlage NDEB a substitute for the Alarm Lock Trilogy PDL4100?
They are not interchangeable on the credential side. The Schlage NDEB is a Grade 1 heavy duty ENGAGE Series wireless cylindrical lock with a 2.4 GHz Bluetooth Low Energy reader and mobile enabled multi-function operation, fitting 1-5/8 inch to 2 inch doors. The Alarm Lock PDL4100 is a Grade 1 cylindrical lock with a keypad and proximity reader that takes 26 to 37 bit HID card and keyfob formats, on a 1-5/8 inch to 1-7/8 inch door. If the credential already in the field is an HID prox card or fob, the PDL4100 reads it directly; the NDEB path is Bluetooth and mobile.
12) What Grade 1 privacy lock works if my doors run up to 2 inches thick and the Trilogy PDL4100 tops out too low?
For a 2 inch leaf, the Cal-Royal CAL20 Calypso Series covers 1-3/8 inch to 2 inch as a Grade 1 Privacy/Bed/Bath lock. If the opening needs to stay electronic, the TownSteel XCE-2000 is a Grade 1 heavy duty electronic keypad cylindrical lockset rated for 1-3/4 inch to 2 inch, though it is a Classroom function rather than privacy. The Alarm Lock PDL4100 is built for 1-5/8 inch to 1-7/8 inch doors, so a true 2 inch leaf falls outside its range.
13) Can I use the SDC Electra 7200 in place of an Alarm Lock Trilogy PDL4100?
Only if you are running power to the door. The SDC Electra 7200 Series is a solenoid controlled cylindrical lock on dual voltage 12/24VDC for a 1-3/4 inch to 2 inch door, meaning it is driven by an access control system rather than by credentials at the lock. The Alarm Lock PDL4100 is battery operated on 5 AA cells with its own keypad and proximity reader, so it stands alone with no wiring to the opening. If you want a battery standalone from SDC instead, the E75 Series is a battery-powered electronic cylindrical lockset with keypad access control, sized for 1-3/4 inch to 2-1/8 inch doors.
14) My facility standardizes on small format interchangeable cores. Which electronic lock takes an SFIC besides the Alarm Lock PDL4100?
The Alarm Lock PDL4100 is orderable in an SFIC prep less core version, along with Corbin Russwin 6-pin LFIC, Medeco LFIC, Sargent LFIC, Schlage FSIC and Yale 6-pin LFIC preps. Among the mechanical peers, the Marks USA 175RF SFIC is a storeroom clutched lever lockset prepped for small format IC less core at Grade 2 with a 2-3/4 inch backset and ANSI strike. That gives you one keying system across both the electronic privacy openings and the mechanical storeroom doors.
15) What should I use instead of the Alarm Lock PDL4100 on a classroom door that needs to be locked down from inside during a lockdown?
The TownSteel XCE-9000 Series is an electronic classroom intruder cylindrical lockset with keypad, Grade 1 heavy duty, for 1-3/4 inch to 2 inch doors, and the FCE-4000 Series is an RFID electronic intruder classroom cylindrical lockset at Grade 1 for a 1-3/4 inch door. Both are built around the intruder classroom function. The Alarm Lock PDL4100 is a Privacy/Bed/Bath function, where the privacy feature locks out basic users for a programmed amount of time and a residency feature lets an occupant exit without relocking the door.
16) Can I use an electronic keypad lock like the Trilogy PDL4100 on an exterior or unheated door?
Yes, within its stated range. The PDL4100 operates from -31F to +151F (-35C to +66C), the keypad is weatherproof all metal with 12 buttons, and the proximity antenna housing is molded of impact resistant Lexan. That covers an exterior entry, a gate house, an unconditioned stairwell, or a parking structure door in most of the continental climate band.
17) Is a card reader lock overkill for a bathroom or bedroom door, and what is the simpler alternative?
For a door where nobody needs an audit trail or credentials, yes, and there are simpler ways to do it. A Cal-Royal CAL20 is a Grade 1 extra heavy duty privacy lock, purely mechanical, and covers 1-3/8 to 2 inch doors, a wider thickness range than the PDL4100. The Orca Hardware OCL240 is a Grade 2 medium duty privacy cylindrical lockset. Go to the Trilogy PDL4100 when you need the privacy lockout to be programmable, want up to 2000 credential holders on the door, and need the 40,000 event log for who entered.
18) How is the Trilogy PDL4100 different from a wireless or Bluetooth cylindrical lock?
The PDL4100 is a standalone lock. Credentials and the 40,000 event log live in the lock itself, and you program it at the keypad or pull the audit trail on site; nothing depends on a network being up. Networked or mobile-credential alternatives work differently: the Schlage NDEB is a Grade 1 ENGAGE Series lock with a 2.4 GHz Bluetooth Low Energy reader for 1-5/8 to 2 inch doors, and the CENTRIOS CEB100 is a Grade 1 smart Bluetooth cylindrical lock in a privacy function. Choose standalone when you want no infrastructure behind the door; choose Bluetooth when you want credentials issued and revoked remotely.
19) Will the Alarm Lock Trilogy 4100 match the other electronic locks already on my property?
It is offered in US10B oil rubbed bronze and US26D satin chrome, the two finishes most commercial openings are already standardized on, and both are available across every cylinder option. Functionally it is a privacy/bed/bath cylindrical lock, so it lines up with the bed, bath, and occupied-room doors rather than the entry or storeroom openings. If you are standardizing a fleet of doors, order keyed alike so one key override works across the group; keyed different and a specific key code are the other two options.
20) What is the difference between the Alarm Lock PDL4100 and the TownSteel XCE-2000 for a school corridor door?
Function is the dividing line. The TownSteel XCE-2000 is an electronic cylindrical lockset with a keypad in a Classroom function, Grade 1 heavy duty, for a 1-3/4 inch to 2 inch door thickness. The Alarm Lock PDL4100 is Grade 1 as well but a Privacy/Bed/Bath function with proximity card and keypad entry, sized for 1-5/8 inch to 1-7/8 inch doors. A classroom door that has to be secured from the corridor side calls for the XCE-2000 function; the PDL4100 privacy behavior locks out basic users for a set period, which is a different intent.
21) Which keypad cylindrical lock should I look at instead of the Alarm Lock PDL4100 if I do not need proximity cards?
Two keypad-only routes sit alongside it. The BEST 9KZ EZ Series is an electronic keypad cylindrical lock with a key override function, and the Accentra nexTouch NTB613 is a Grade 1 cylindrical keypad lock with pushbutton entry. The Alarm Lock PDL4100 runs both a 12 button weatherproof metal keypad and a proximity antenna, so it holds PIN or PIN plus proximity codes; dropping the card side means you are not paying for the reader you will not use.
22) Is the CENTRIOS CEB100 the same kind of lock as the Alarm Lock Trilogy PDL4100?
They share the Grade 1 cylindrical privacy footing but not the credential. The CENTRIOS CEB100 Series is a Grade 1 smart Bluetooth cylindrical lock in a Privacy function. The Alarm Lock PDL4100 is a Grade 1 Privacy/Bed/Bath cylindrical lock read by a 12 button keypad and an HID proximity antenna, holding up to 2000 PIN or PIN/proximity users with a 40,000 event audit trail. Choose by how the building issues credentials: phones and Bluetooth point to the CEB100, prox cards and PIN codes point to the PDL4100.
23) The Lockey E995 looks like an electronic keypad lever lock — will it drop into the same opening as an Alarm Lock PDL4100?
Not on every door. The Lockey E995 is an electronic keypad lever lock with remote control and battery power, built for a 1 3/8 inch to 1 3/4 inch door thickness. The Alarm Lock PDL4100 covers 1-5/8 inch to 1-7/8 inch, so on a 1-7/8 inch leaf the E995 falls short and on a 1-3/8 inch leaf the PDL4100 does. The PDL4100 also runs a standard ANSI A115 Series door prep modified with additional through-bolt holes and a 2-3/4 inch backset, which is the detail to confirm against whatever is already cut into the door.
24) I want to standardize a building on one lock family but some doors are keyed entry, not privacy. What pairs with the Alarm Lock PDL4100?
Match the mechanical openings by function. The Marks USA 195RAB is a Grade 1 Survivor Series entry clutched lever lockset in an Entrance/Office function, less core, and the Marks USA 195N is a Grade 1 Survivor Series passage lever, ADA compliant, for doors that never lock. Both hold the Grade 1 rating the Alarm Lock PDL4100 carries, so the whole building stays at one grade while the PDL4100 handles the openings that need PIN and proximity credentials with an audit trail.
25) Is the Kwikset SmartCode 912TNL an alternative to the Alarm Lock Trilogy PDL4100 for an apartment building?
They are built for different sides of the property. The Kwikset 912TNL ZW500 SmartCode is an electronic Tustin lever with Z-Wave technology in a Keyed One Side function, covering 1-3/8 inch to 2 inch doors. The Alarm Lock PDL4100 is a commercial Grade 1 cylindrical lock with a weatherproof all metal keypad, 2000 user capacity and a 40,000 event audit trail. For unit doors on a Z-Wave hub the 912TNL fits that system; for common-area and back-of-house doors where a manager needs code turnover and an access log, the PDL4100 is the commercial-rated part.
26) Is there a keyless option like the Alarm Lock PDL4100 that does not need batteries at all?
The Lockey 1600 is a heavy duty mechanical keyless knob lock with an adjustable backset covering 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 on the same 1-1/8 inch to 2 inch range. Both are pushbutton entry with no power at the door. The Alarm Lock PDL4100 runs on 5 AA alkaline batteries and in exchange gives 2000 user codes, proximity card reading and a 40,000 event audit trail, none of which a mechanical pushbutton lock produces.
27) Does the Dorma C150 cover the same doors as the Alarm Lock PDL4100?
It covers a wider door range but a different function. The Dorma C150 is a Grade 1 heavy-duty cylindrical lock in the C100 Series with an Entry/Office function, fitting 1-3/8 inch to 2-1/4 inch doors. The Alarm Lock PDL4100 is Grade 1 as well but Privacy/Bed/Bath, battery operated with a keypad and proximity reader, for 1-5/8 inch to 1-7/8 inch doors. An entry/office opening keyed by cylinder is the C150; an opening that needs codes, cards and a privacy lockout is the PDL4100.
How fast can I get the Alarm Lock PDL4100/26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Alarm Lock PDL4100/26D come with a warranty?
Absolutely. The Alarm Lock PDL4100/26D 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 PDL4100/26D?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Alarm Lock PDL4100/26D from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!