Carbine CDL2 Digital Deadbolt with PIN and Key Override - Satin Nickel and Matte Black Kit with Batteries
At A Glance
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The Carbine CDL2 Digital Deadbolt (CDL2-DB) provides simple PIN code access and mechanical key override in a compact deadbolt form factor with a membrane keypad. Available in Satin Nickel (CDL2-DBSNKIT) and Matte Black (CDL2-DBMBKIT) - both finishes sold from this page.
Stores up to 10 user codes (4-6 digits) plus 5 single-use codes (4 digits only). Powered by 4 x AA batteries. Fits a standard 54mm (2-1/8") bore, or a 38mm (1-1/2") bore by removing the adapter collar.
PIN-only - no RFID, no Bluetooth. Cannot be fitted with a restricted or TES5 keyway. Not sure whether you need a deadbolt or a leverset? See: What is bolt throw and why does it matter? For RFID or Bluetooth, see the CEL or CEL2 range. For the CDL2 leverset, see the CDL2-SL8.
Usually ships same day if ordered before 11am AEST (excludes weekends and Queensland public holidays).
Available Finish Options
Satin Nickel
(This Product)
CDL2-DBSNKIT
Matte Black
(This Product)
CDL2-DBMBKIT
Both finishes sold from this page. Finish does not affect functionality or performance.
Key Features
- Membrane keypad (not touchscreen) - slimline design.
- Stores 10 user codes (4-6 digits) and 5 single-use codes (4 digits only), plus 1 programming code.
- Auto-lock timer: default 10 seconds, range 10-99 seconds.
- Vacation mode temporarily disables all user codes.
- Two bore hole options: 54mm (2-1/8") standard or 38mm (1-1/2") with adapter collar removed.
- Backset 60-70mm adjustable; door 35-51mm.
- LKW5 (Silca LW4) keyway cylinder. Cannot be fitted with restricted or TES5 keyway.
- 4 x AA batteries (note: AA, not AAA). Included in KIT.
- Cycle tested to 100,000 operations. Moisture and salt spray tested.
- No RFID; no Bluetooth; not fire rated.
- Auto-lock ships switched off - turn it on from the keypad if you want the bolt to throw on its own.
- Keypad volume is adjustable, so the lock can be quietened on a shared entry or a hallway door.
Access Methods
Suitable Uses
- Secondary deadbolt on a door with an existing primary latch mechanism. See: When is a secondary deadbolt appropriate?
- Residential and rental properties requiring simple PIN-only deadbolt security.
- Applications where a smaller 38mm bore hole is already present in the door.
- Short-stay rental properties - issue unique codes per guest, delete at checkout. See: Airbnb smart locks - do you really need WiFi?
See also: Secondary locks and the one-penetration principle · What is bolt throw and why does it matter? · Buyers Guide Ch02: Measuring Your Door · Buyers Guide Ch07: Which short-stay setup is right for you? · Smart locks with a backup key
What's in the Box
- 1 x exterior module with membrane keypad
- 1 x interior housing with thumbturn
- 1 x deadbolt mechanism with adapter collar (fits 54mm or 38mm bore)
- 1 x LKW5 (Silca LW4) keyway cylinder
- 2 x mechanical keys
- 1 x user manual and installation guide
- 1 x set of fixing screws
- 4 x AA alkaline batteries (Duracell Procell)
- 1 x strike plate and dust box
- 1 x square faceplate and 1 x radius faceplate - fit whichever matches the door preparation
- Optional drive-in collars, mounting plate, bottom plate, exterior gasket and torque blade

Parts list taken from the CDL2 Deadbolt Installation Guide. Mounting bolts are 1-13/16" (46mm); fixing screws and wood screws are 3/4" (19mm).
Carbine CEL / CEL2 / CDL2 - Complete Product Family
CEL2-BT deadbolt: RFID not compatible - Bluetooth and PIN only. CDL2 models: membrane keypad, no RFID. All KIT numbers include batteries. For a full model comparison: Carbine CEL & CDL Buyer's Guide - CDL2 Deadbolt · Range at a glance · see the full Carbine range
Full Specifications
Dimensions
Door preparation, jamb and strike figures are taken from the CDL2 Deadbolt Installation Guide. Measure before you order: Buyers Guide Ch02: Backset · Ch02: Door Thickness · Standard backset sizes in Australia
Battery, Power & Backup Access
- Powered by 4 x AA alkaline batteries (Duracell Procell recommended). Note: AA, not AAA.
- Low battery warning via indicator light before full depletion.
- Mechanical key override via LKW5 cylinder keys - always keep a key stored securely off-site. See: where to store the override key
- This KIT version includes batteries. Related: How long do digital door locks last? · Buyers Guide Ch13: Power & Battery
- The installation sheet specifies alkaline batteries; fit all four at once and use the same brand and age.
Frequently Asked Questions
Yes. The CDL2 deadbolt fits a standard 54mm (2-1/8") bore, or a smaller 38mm (1-1/2") bore by removing the adapter collar with a flat-head screwdriver. Confirm your door bore size before ordering. See: Ch02: Door preparation · CDL2 Deadbolt Installation Guide (PDF)
No. The CDL2 deadbolt uses the LKW5 (Silca LW4) keyway and cannot be fitted with a restricted or TES5 keyway. For restricted keying, see the CEL or CEL2 range (C4 keyway). Background: Mechanical key override on smart locks
User codes (up to 10) can be used multiple times. Single-use codes (up to 5, 4 digits only) are deleted automatically after a single use - useful for one-time tradesperson or delivery access. See: Buyers Guide Ch03: PIN access methods · Ch07: Short-stay access approaches
The CDL2 deadbolt uses 4 x AA alkaline batteries (Duracell Procell recommended). Low battery warning via indicator light before full depletion. Note: AA batteries, not AAA. See: How long do digital door locks last? · Battery life - the truth, not the marketing version
This lock requires 35-51mm door thickness and 60-70mm backset. Outside these ranges it is not compatible. See: Buyers Guide Ch02: Backset · How to measure your backset
Additional Information
The CDL2 deadbolt ships with an adapter collar for the standard 54mm bore. To install in a 38mm bore, simply remove the adapter collar with a flat-head screwdriver. Confirm your bore size before ordering. See: The realities of electronic door locks
The CDL2 deadbolt uses the LKW5 (Silca LW4) keyway and cannot be fitted with a restricted or TES5 keyway. If restricted keying is required, see the CEL or CEL2 range (C4 keyway). Using a deadbolt on a fire-rated door? See: Secondary locks and the one-penetration principle · Ch11: AS1905.1 fire door hardware
Make sure the bolt is in the retracted position before installing the exterior assembly, there is no key in the cylinder during installation, and the torque blade is inserted horizontally. After installation, enter the default programming code (123456) to allow the lock to determine bolt direction and complete setup. See: 3 common DIY smart lock installation mistakes and how to fix them · Buyers Guide Ch12: Troubleshooting
The reset is done by taking out one battery and holding the SET button. It wipes the stored codes and the bolt direction the lock learned at setup, so the lock has to relearn which way the bolt throws the next time the programming code is entered. Do the reset with the lock on the door, not on the bench. Source: CDL2 Deadbolt User Guide (PDF) · Ch12: Symptom to fix
Clean the escutcheons with mild soap and water only, and take the lock off the door before painting - the installation sheet is explicit that the door must not be painted with the lock fitted. On a coastal Gold Coast door, wiping the salt off the outside face every few weeks does more for the finish than anything else. See: Ch11: AS4145.2 corrosion resistance grades · Coastal environments - Gold Coast specific
Warranty
Carbine products are backed by Davcor Group Pty Ltd, the Australian manufacturer and owner of the Carbine brand, distributed locally through Lock and Key Co. Warranty periods vary by product category:
- Up to 15 years - mechanical hardware, door hardware, cabinet furniture, utility and window locks
- 10 years - padlocks and mechanical digital locks
- 5 years - cylinders and keys
- 12 months - electronic and digital locks, locksmith tools and supplies
Download PDF Resources
Two-page guide to everyday use and programming - locking and unlocking by code or key, the guiding code, 10 user codes and 5 single-entry codes, auto-lock (off by default, 10-99 seconds), vacation mode, keypad volume, troubleshooting, and the factory reset that also clears the stored bolt direction.
Parts list and hardware sizes, door preparation template (54mm or 38mm bore, 25mm edge hole, 60mm or 70mm backset, door marks at 35, 40, 45 and 51mm), jamb and strike dimensions, step-by-step fitting, and the care notes - mild soap only, and do not paint the door with the lock fitted.
Carbine's problem, cause and fix tables for its CEL-3in1 leverset and deadbolt - unresponsive keypad, battery and cable tips, programming problems, deadbolt handing and factory reset. Written for the CEL-3in1 range; it does not name the CDL2, and the default code it quotes (12345678) is not the CDL2's (123456).
Carbine's two-page explainer on how its locksets are salt spray tested to AS 4145.2-2008, what the corrosion resistance categories mean, and why a laboratory cabinet result is not a promise of service life. A brand-wide reference sheet - it is not a test certificate for the CDL2 deadbolt and quotes no figure for this model.
Carbine CDL2 Digital Deadbolt - FAQ, Setup and Owner's Guide
Everything a buyer, installer or owner asks about the CDL2 deadbolt, answered in one place. For questions that apply to digital locks generally, see Buyers Guide Chapter 13: Smart Lock FAQ and the Ultimate Smart Lock Buyer's Guide.
Fit and Door Preparation
It fits a door 35-51mm thick with a 60-70mm backset and a 54mm (2-1/8") or 38mm (1-1/2") bore. Outside those ranges it will not fit, and there is no adaptor that changes that. Measure the door before you order - the door template in the CDL2 Deadbolt Installation Guide marks the backset at 60mm and 70mm and the door thickness at 35, 40, 45 and 51mm. See Ch02: Backset and how to measure your backset.
A standard 54mm bore with the adapter collar fitted, or a 38mm bore with the collar removed using a flat-head screwdriver. The door edge takes a 25mm hole for the bolt. Being able to take either bore is unusual for a digital deadbolt and is the main reason this lock suits a retrofit into an older door. More on door preparation: Ch02: Bored cylindrical vs mortice door prep.
Usually, yes. The installation sheet gives a 57 x 25mm strike plate and a jamb hole of 30mm / 29mm / 22mm, and supplies a dust box for the bolt. Older strikes rarely match, and a strike that is even slightly out is the most common reason a digital deadbolt strains and eats batteries. See door alignment - the most underestimated factor.
Both are in the box. Take the one that matches the mortice already cut into the door edge: a square faceplate for a square-cornered mortice, a radius faceplate for a rounded one. Swapping the faceplate is a two-screw job and does not affect the bolt or the electronics. The full parts list is in the installation guide.
Codes, Programming and Everyday Use
10 user codes of 4 to 6 digits, plus 5 single-use codes of 4 digits, plus the one programming code. A single-use code deletes itself after one entry, which is what makes it useful for a tradesperson or a delivery. If ten codes is not enough, the CEL2-3IN1 deadbolt holds 100 codes and cards in one shared pool. Background: Ch03: PIN and keypad access.
The lock ships with programming code 123456. Change it before the door goes into service - the installation sheet says so in its safety notes, and a factory default on a front door is not security. The procedure is in the CDL2 Deadbolt User Guide. Note the CEL and CEL2 ranges use an eight-digit default (12345678), so do not follow a CEL sheet on this lock.
Only if you switch auto-lock on. It is off from the factory. Once enabled, the delay is adjustable from 10 to 99 seconds, with 10 seconds as the starting value. Plenty of owners leave it off on a deadbolt so the door is never locked behind them by accident; on a short-stay property, turning it on is usually the right call.
It suspends every user code at once without deleting them, so nobody who has a code can get in while you are away. Turn it off and the same codes work again - there is no re-programming. It is the fastest way to shut down guest access at the end of a season.
Yes. Keypad volume is adjustable from the keypad itself, which matters on a shared entry, a hallway door, or a bedroom-adjacent door where the confirmation beep carries. The steps are in the user guide.
The user guide lists a guiding code alongside the programming and user codes. Carbine's sheet does not spell out the behaviour beyond naming it, so we are not going to guess at it here - if it matters to how you plan to run the lock, call us and we will check it against a unit before you order.
Keys, Keyways and Backup Access
The CDL2 deadbolt uses the LKW5 (Silca LW4) keyway and comes with two keys. It cannot be fitted with a restricted or TES5 keyway - the cylinder simply is not made for it. If key control is the point of the exercise, step up to the CEL or CEL2 range, which use the C4 keyway. See what the mechanical key override is for.
The keypad stops and the key takes over. There is a low battery warning light before that point, so a flat lock is normally a warning that went unnoticed rather than a surprise. Keep a key somewhere you can reach it without getting through this door. See what to do when the battery dies.
Outside the house, not inside it - a key in the hall drawer is no use when the lock you are locked out of is the front door. A key safe on a side wall or a magnetic hider in the carport is the usual answer, and we stock both. See storing the override key and the key storage range.
Power and Batteries
The CDL2 deadbolt takes 4 x AA. The CDL2 leverset takes 4 x AAA. They look like the same lock family and they are, but the battery is not interchangeable, and this is the single most common mix-up on the CDL2 range. The KIT version of this listing includes the four AA cells.
Carbine does not quote a battery life figure for this model, so we will not invent one. What we can say from the workshop is that a well-aligned deadbolt on a normal household door goes a long time on a set of alkalines, and a misaligned one goes through them quickly, because the motor is fighting the strike on every throw. See realistic lifespan expectations and battery life, honestly.
Installation and Setup
If the door already has a 54mm or 38mm bore at the right backset, this is a confident DIY job. If the door needs boring, or it is an apartment or fire door, get a licensed locksmith - see when DIY is appropriate and when it is not and our advice and installation page.
Three things to check, in order. The bolt must be retracted before the exterior assembly goes on; there must be no key in the cylinder during installation; and the torque blade must go in horizontally. Once it is together, enter the programming code (123456 from new) so the lock can work out which way the bolt throws. See the three common DIY mistakes and Ch12: symptom to fix.
Yes - and this catches people out. The reset (take out one battery, hold SET) wipes the codes and the bolt direction the lock learned at setup. The lock relearns it the next time the programming code is entered, so do the reset with the lock on the door rather than on the bench. Source: CDL2 Deadbolt User Guide.
Not one that names the CDL2. The CEL-3in1 troubleshooting guide is the closest Carbine document and its battery, cable, alignment and handing advice reads across, but it was written for the CEL-3in1 range - its default code (12345678) is not this lock's (123456), so do not follow its programming steps. For anything it does not cover, Ch12: troubleshooting or call us.
Suitability
No. The CDL2 deadbolt carries no fire rating, and on a fire-rated apartment door the one-penetration principle means a second deadbolt is not compliant even if the lock itself were rated. Read why deadbolts are not compliant on apartment fire doors and Ch11: AS1905.1 fire door hardware before you drill anything. If you need a certified digital lock for a fire door, the CEL2-3IN1 Fire Rated leverset is the Carbine answer.
It is moisture and salt spray tested, but Carbine doesn't quote salt spray hours for this model, so we are not going to put a number on it. Carbine does have a general explainer on how its locksets are tested to AS 4145.2-2008 - see the Carbine salt spray testing sheet and Ch11: corrosion resistance grades. On a beachfront door, a sheltered position and a regular wipe-down matter more than any lab number: corrosion resistance, honestly compared.
For a single property, yes, with a caveat. The five single-use codes and ten user codes let you hand out and retire access without changing a lock, and nothing here depends on wi-fi. But there is no app and no remote access, so every code change happens at the door. If you manage several properties, or want codes to issue themselves from a booking, you want a connected lock instead. See Ch07: which short-stay setup is right for you and do Airbnb smart locks work without wi-fi?.
It is a deadbolt, so it has no latch and does not hold the door shut - it only bolts it. It needs a primary latch or lockset doing the closing. That is the normal way a deadbolt is used, and it is worth understanding the difference: Ch01: tubular deadbolt and deadbolt projection explained.
Where the CDL2 Deadbolt Sits in the Carbine Range
Same family, different job. The deadbolt bolts a door that already has a latch; the CDL2 leverset is the handle and the lock in one. The leverset also holds 20 codes to this lock's 10, uses AAA batteries rather than AA, and controls auto-lock from a thumbturn rather than a timer. Full comparison: Carbine CEL & CDL Buyer's Guide - CDL2.
The CDL2 is the entry point: PIN and key, membrane keypad, 10 codes. The CEL2-3IN1 deadbolt (Satin Nickel / Matte Black) adds RFID and NFC credentials, a touchscreen keypad and a 100-credential pool. If everyone who needs access already carries a card or a phone, the CEL2 earns its price; if a PIN is all you need, the CDL2 does the same job for less. See the range at a glance.
The CEL2-BT deadbolt (Satin Nickel / Matte Black), which adds the Carbine Connect app over Bluetooth and holds 200 PIN codes. One thing to know before you assume it is the better lock: the Bluetooth deadbolt has no RFID, unlike its leverset sibling, and Bluetooth is range-only - there is no gateway and no remote unlock. See the CEL2-BT deadbolt and the Carbine Connect platform guide.
Related products, guides and chapters
Carbine digital locks
CDL2 Leverset (PIN + key, 20 codes) · CEL2-3IN1 Deadbolt - Satin Nickel · CEL2-3IN1 Deadbolt - Matte Black · CEL2-BT Bluetooth Deadbolt - Satin Nickel · CEL2-BT Bluetooth Deadbolt - Matte Black · CEL-3IN1 Leverset - Satin Nickel · CEL-3IN1 Leverset - Matte Black · CEL2-3IN1 Leverset - Satin Nickel · CEL2-3IN1 Fire Rated Leverset · the full Carbine range
Browse by what matters
PIN code locks · locks with a backup key · all smart locks · keys and key blanks · key storage
Buyer's Guide chapters
Ch01: What is a smart lock (deadbolt) · Ch02: Measuring your door · Ch03: Access methods · Ch07: Airbnb and short-stay · Ch10: Carbine brand profile · Ch11: Australian standards · Ch12: Installation and troubleshooting · Ch13: Smart lock FAQ
Blogs by our locksmiths
Carbine CEL & CDL range - complete buyer's guide · What is bolt throw? · Secondary locks and the one-penetration principle · Measuring your lock backset · Mechanical key override on smart locks · How long do digital door locks last? · The realities of electronic door locks · Smart lock not locking? 3 DIY mistakes · Airbnb smart locks - do you really need wi-fi? · Lockwood vs Borg vs Carbine · Carbine Connect explained
What's in the Box - CDL2-DBSNKIT / CDL2-DBMBKIT Kit
- 1 x exterior module with membrane keypad
- 1 x interior housing with thumbturn
- 1 x deadbolt mechanism with adapter collar (fits 54mm or 38mm bore)
- 1 x LKW5 (Silca LW4) keyway cylinder
- 2 x mechanical keys
- 1 x user manual and installation guide
- 1 x set of fixing screws
- 4 x AA alkaline batteries (Duracell Procell)
- 1 x strike plate and dust box
- 1 x square faceplate and 1 x radius faceplate - fit whichever matches the door preparation
- Optional drive-in collars, mounting plate, bottom plate, exterior gasket and torque blade

Parts A to O, hardware sizes and the door template are set out in the CDL2 Deadbolt Installation Guide (PDF). Spare AA cells and key blanks: keys and key blanks for smart locks.
Carbine CDL2 Deadbolt - Door Preparation & Dimensions
Figures taken from the CDL2 Deadbolt Installation Guide (PDF). For the full door preparation template, see the Installation Specs tab. Buyers Guide Ch02: Measuring Your Door
Carbine CDL2 Deadbolt - Installation Specifications
Bolt retracted, no key in the cylinder, torque blade inserted horizontally. The door template marks the backset at 60mm and 70mm and the door thickness at 35, 40, 45 and 51mm; the jamb takes a 30mm / 29mm / 22mm hole for the 57 x 25mm strike and dust box. Do not paint the door with the lock fitted. See: poor door preparation and fitment · Ch12: when DIY is appropriate · Advice and Installation
For the full PDF, see the PDF Files tab. Note: after installing batteries, enter the default programming code (123456) to set bolt direction before use. See: Buyers Guide Ch12: Installation & Troubleshooting
PDF Files - Carbine CDL2 Deadbolt
Two-page guide to everyday use and programming - locking and unlocking by code or key, the guiding code, 10 user codes and 5 single-entry codes, auto-lock (off by default, 10-99 seconds), vacation mode, keypad volume, troubleshooting, and the factory reset that also clears the stored bolt direction.
Parts list and hardware sizes, door preparation template (54mm or 38mm bore, 25mm edge hole, 60mm or 70mm backset, door marks at 35, 40, 45 and 51mm), jamb and strike dimensions, step-by-step fitting, and the care notes - mild soap only, and do not paint the door with the lock fitted.
Carbine's problem, cause and fix tables for its CEL-3in1 leverset and deadbolt - unresponsive keypad, battery and cable tips, programming problems, deadbolt handing and factory reset. Written for the CEL-3in1 range; it does not name the CDL2, and the default code it quotes (12345678) is not the CDL2's (123456).
Carbine's two-page explainer on how its locksets are salt spray tested to AS 4145.2-2008, what the corrosion resistance categories mean, and why a laboratory cabinet result is not a promise of service life. A brand-wide reference sheet - it is not a test certificate for the CDL2 deadbolt and quotes no figure for this model.
Carbine Warranty
Carbine is a flagship brand of Davcor Group Pty Ltd (ABN 95 003 562 598) - an Australian manufacturer, designer, and wholesale distributor of residential and commercial locking hardware. Engineered in collaboration with working locksmiths, Carbine products focus on high security, versatility, and ease of installation.
Davcor distributes Carbine through seven specialist divisions, including Lock and Key Co. - Davcor's dedicated trade distribution arm supplying locksmiths and the security industry across Australia, New Zealand, and beyond. Whether you purchased your Carbine product through Lock and Key Co., another trade channel, or directly through us, the same Davcor warranty applies.
All Carbine products are guaranteed by Davcor Group Pty Ltd to be free from defects in materials and workmanship from the date of original purchase, for the period applicable to the specific product category (refer to the Warranty Period table below). This warranty covers replacement of product only.
Warranty Summary
Warranty Periods by Product Category
Source: Davcor Warranty Against Defects - Appendix A. Warranty period runs from the date of original purchase.
How to Make a Claim
- Contact Terry's Tradies Pty Ltd (the place of purchase) in writing as soon as the defect becomes apparent - and no later than 14 days after the end of the applicable warranty period.
- Include in your written claim: a description of the defect, the date of supply, your contact details, and satisfactory proof of purchase.
- Do not return the product until a return authorisation number has been issued by Davcor. If return is required, the product must be in its original, complete, and saleable packaging.
- Davcor will test and assess the product. No claim is valid unless Davcor has confirmed a defect is present.
- Once a valid claim is confirmed, Davcor will - at its discretion - repair the defect, replace the product, or supply an equivalent product. If repair or replacement cannot be completed within a reasonable time, you may request a full refund, provided the product has been returned.
Delivery inspection: If you believe a product is defective or incorrectly supplied at the time of delivery, telephone notice must be given within 72 hours of receipt, with written notice (including full particulars) within 14 days of the invoice date.
Exclusions
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure, and to compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if they fail to be of acceptable quality and the failure does not amount to a major failure. The Carbine/Davcor express warranty operates alongside and in addition to your rights under the Australian Consumer Law.
Confused? Overwhelmed? We get it.
Choosing the right smart lock can be genuinely tricky - door types, backsets, app platforms, compatibility with your existing hardware... there is a lot to consider. We have decades of experience fitting locks of all types, including smart locks, and we are happy to help.
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