Keyin + Finger Bluetooth Fingerprint Reader
The Keyin + Finger is a standalone Bluetooth fingerprint reader designed to add fingerprint access to Keyin smart locks. It pairs wirelessly via Bluetooth with compatible Keyin locks and mounts on or near the door using double-sided tape or screws — both are supplied. Up to 99 fingerprints can be registered, and battery life is approximately 8 months at 10 uses per day. For a broader overview of how fingerprint access works on smart locks — including sensor types, rejection rates, and wet-finger performance — see Chapter 03 — Access Methods: Fingerprint.
This unit does not contain a lock mechanism. It is a credential input device only — when a registered fingerprint is recognised, the reader sends a Bluetooth signal to the paired Keyin lock to retract the bolt. The Keyin + Finger is particularly relevant to owners of the Keyin S Rim Lock Smartlock, which does not have a built-in fingerprint reader. It is also compatible with the Keyin-L Fire Rated Mortice Smartlock where a second reader position is needed.
Confirm compatibility with your specific Keyin lock model and confirm stock availability with Terry's before ordering.
This is an add-on accessory — not a standalone smart lock
The Keyin + Finger does not lock or unlock a door on its own. It is a Bluetooth fingerprint reader that pairs with and sends an unlock signal to a compatible Keyin lock. A Keyin smart lock must already be installed (or purchased alongside) for this unit to function. The lock itself handles all bolt movement, access management, and app control. For a full explanation of how biometric readers integrate with smart lock credential stacks, see Chapter 03 — Fingerprint access on smart locks.
The Keyin + Finger does not lock or unlock a door on its own. It is a Bluetooth fingerprint reader that pairs with and sends an unlock signal to a compatible Keyin lock. A Keyin smart lock must already be installed (or purchased alongside) for this unit to function. The lock itself handles all bolt movement, access management, and app control. For a full explanation of how biometric readers integrate with smart lock credential stacks, see Chapter 03 — Fingerprint access on smart locks.
Key Features
- Adds fingerprint access to compatible Keyin smart locks — including the Keyin S (which has no built-in fingerprint reader) and the Keyin-L
- Bluetooth connectivity — pairs directly with the host Keyin lock; no hub or gateway required for fingerprint operation
- Up to 99 fingerprints — supports multiple household members or users; see Ch 03 — fingerprint enrolment best practices
- Minimalist form factor — slim, unobtrusive panel that mounts discreetly on or near the door
- Flexible mounting — double-sided tape for tool-free installation; screw mount for permanent fixing; both methods supplied
- AAA battery powered — approximately 8 months at 10 uses per day
- Managed via Keyin Plus app — fingerprints enrolled and managed through the same Keyin Plus app as the host lock
- Flexible mount position — can be placed at any height or location within Bluetooth range; useful for DDA and accessibility applications — see Chapter 09 — DDA and Accessibility
Compatible Keyin Locks
The Keyin + Finger is stated as compatible with all Keyin smart locks. The two Keyin models currently available from Terry's are:
| Lock | Format | Fingerprint Built-In? | Notes |
|---|---|---|---|
| Keyin S Rim Lock Smartlock | Rim lock (surface-mount) | No — this add-on required | Primary use case for Keyin + Finger |
| Keyin-L Fire Rated Mortice Smartlock | Full mortice with integrated pull handle | Yes — built in | Additional reader useful where a second entry point or alternative mount height is needed |
Confirm compatibility before ordering
While the Keyin + Finger is stated as compatible with all Keyin locks, always confirm with Terry's that your specific Keyin lock model and firmware version support the Keyin + Finger add-on before purchasing. Compatibility requirements may vary as the platform evolves. For context on evaluating platform maturity, see Chapter 15 — Choosing Your Smart Lock Platform.
While the Keyin + Finger is stated as compatible with all Keyin locks, always confirm with Terry's that your specific Keyin lock model and firmware version support the Keyin + Finger add-on before purchasing. Compatibility requirements may vary as the platform evolves. For context on evaluating platform maturity, see Chapter 15 — Choosing Your Smart Lock Platform.
Suitable Uses
Ideal for: Keyin S owners who want to add fingerprint access after installation; households with multiple users who prefer biometric entry over remembering PIN codes (see Ch 03 — fingerprint vs PIN comparison); situations where the fingerprint reader position on the host lock panel is not convenient — the + Finger can be mounted at a more accessible height or location; adding fingerprint as a supplementary credential alongside PIN and RFID already in use on the host lock; DDA and accessibility applications where the host lock panel is too high for a wheelchair user (see Chapter 09 — DDA, NDIS and Accessibility and DDA Smart Locks for NDIS — which lock suits your project); rental properties where finger-based access is preferred by tenants (see Chapter 07 — Airbnb and Short-Stay Rentals).
Not for: Use without a compatible Keyin host lock — this unit does not control a bolt independently; non-Keyin smart locks (it uses Keyin's Bluetooth protocol, not a universal standard); applications requiring an IP-rated or outdoor-exposed fingerprint reader (no IP rating is confirmed for this unit — mount in a sheltered location; for IP-rated alternatives, compare Hafele DL8800 with its IP55 rating and built-in fingerprint reader); access control systems requiring audit trails from the fingerprint reader itself (audit trail is managed by the host lock, not this unit); high-traffic commercial applications where a grade-rated device is specified.
Available Finish Options
Silver
(This Product)
STK Keyin + Finger
Single finish. Flag: Exact finish name not stated in source data — Silver used as nearest match. Confirm with Terry's if a specific finish match to the Keyin S (Satin Nickel) or Keyin-L (Black/Gold) is required.
Installation
The Keyin + Finger can be mounted using either method supplied in the box:
- Double-sided tape — tool-free; suitable for smooth flat surfaces; recommended for renters or where drilling is not permitted
- Screw mount — permanent fixing through a wall, door face, or door frame; more secure for high-use installations
Placement tips
Mount the reader at a comfortable height for all regular users — typically 900-1000 mm from the floor for adult use, lower if children are regular users (see Chapter 09 — DDA height requirements). Bluetooth range between the reader and the host lock must be maintained — confirm the reader is within reliable Bluetooth range of your specific lock model. Avoid mounting the reader in direct sun exposure or rain without a protective overhang, as no IP rating is confirmed for this unit. For common installation pitfalls with smart lock accessories, see Chapter 12 — When to DIY vs call a locksmith and Terry's Site Survey and Installation Services.
Mount the reader at a comfortable height for all regular users — typically 900-1000 mm from the floor for adult use, lower if children are regular users (see Chapter 09 — DDA height requirements). Bluetooth range between the reader and the host lock must be maintained — confirm the reader is within reliable Bluetooth range of your specific lock model. Avoid mounting the reader in direct sun exposure or rain without a protective overhang, as no IP rating is confirmed for this unit. For common installation pitfalls with smart lock accessories, see Chapter 12 — When to DIY vs call a locksmith and Terry's Site Survey and Installation Services.
Battery and Power
The Keyin + Finger runs on AAA batteries. Battery count is not stated in the source data — confirm with Terry's or the product manual. Expected battery life is approximately 8 months at 10 uses per day. When the reader's batteries are low, the host lock's Keyin Plus app should alert you — check app notifications regularly and replace batteries promptly to avoid fingerprint access failure. See Realities of Electronic Door Locks — Battery Life for honest context on battery management across smart lock systems.
No emergency power input
Unlike the Keyin S and Keyin-L host locks, the Keyin + Finger reader does not have a 9V emergency power input. If the reader's batteries fail, fingerprint access via this unit is unavailable until batteries are replaced. The host lock's other credentials (PIN, RFID, mechanical key) remain fully operational independently of the Keyin + Finger reader's power state. See Mechanical Key Override — backup access options for an overview of failsafe entry on smart locks.
Unlike the Keyin S and Keyin-L host locks, the Keyin + Finger reader does not have a 9V emergency power input. If the reader's batteries fail, fingerprint access via this unit is unavailable until batteries are replaced. The host lock's other credentials (PIN, RFID, mechanical key) remain fully operational independently of the Keyin + Finger reader's power state. See Mechanical Key Override — backup access options for an overview of failsafe entry on smart locks.
Full Specifications
| Specification | Detail |
|---|---|
| SKU | STK Keyin + Finger |
| Product Type | Bluetooth fingerprint reader (accessory — not a standalone lock) |
| Connection Type | Bluetooth |
| Fingerprint Capacity | Up to 99 |
| Power Source | AAA batteries (count not stated — confirm with Terry's) |
| Battery Life | ~8 months at 10 uses/day |
| Mounting Method | Double-sided tape or screws (both supplied) |
| Compatibility | All Keyin smart locks (confirm with Terry's for your specific model) |
| App Management | Keyin Plus (via host lock) |
| IP Rating | Not confirmed — mount in sheltered location |
| Fire Rating | None |
| Emergency Power | None — replace batteries; host lock credentials remain operational |
Also Consider
If you need fingerprint access built into the lock itself rather than as an add-on, these alternatives include fingerprint as a standard credential:
| Product | Format | When to consider |
|---|---|---|
| Keyin-L Fire Rated Mortice Smartlock | Full mortice, integrated pull handle | Fire-rated new build on a timber entry door; fingerprint built in; same Keyin Plus platform. |
| Hafele Genesis DL8800 Smart Lock | Mortice lever set | Fire-rated (AS1530.4); DDA compliant; built-in fingerprint; IP55; Zigbee gateway available. Retrofit onto existing mortice prep. |
| igloohome Smart Mortice Lock V2 + Fingerprint | Mortice lever set | Built-in fingerprint; algoPIN offline codes; IP64; strong Airbnb/short-stay track record. 70 mm backset. |
| Auslock Handy Series H05 Smart Mortice Lock | Mortice lever set | Built-in fingerprint, PIN, RFID; compact 280 mm panel; IP55; 60 mm backset; suits timber and aluminium doors. |
| Auslock Glory Series H06 Smart Mortice Lock | Mortice lever set | Built-in fingerprint, PIN, RFID; 370 mm panel; IP55; 60 mm backset; suits timber and aluminium doors. |
Frequently Asked Questions
Can the Keyin + Finger be used without a Keyin smart lock?
No. The Keyin + Finger is a Bluetooth input device that communicates with a Keyin host lock. Without a paired Keyin lock, the reader has no mechanism to act on. It must be purchased alongside or for use with an already-installed Keyin S or Keyin-L. For a broader explanation of how biometric credential devices integrate with smart lock systems, see Chapter 03 — Fingerprint Access.
No. The Keyin + Finger is a Bluetooth input device that communicates with a Keyin host lock. Without a paired Keyin lock, the reader has no mechanism to act on. It must be purchased alongside or for use with an already-installed Keyin S or Keyin-L. For a broader explanation of how biometric credential devices integrate with smart lock systems, see Chapter 03 — Fingerprint Access.
Does the Keyin-L already have a fingerprint reader built in? Why would I need this?
Yes — the Keyin-L already includes a built-in fingerprint reader as one of its six access methods. The Keyin + Finger would only be relevant to a Keyin-L owner who wants a second fingerprint reader at a different location or mounting height — for example, at a lower height for a wheelchair user or child. The primary use case for this add-on is the Keyin S, which has no built-in fingerprint reader. For an overview of fingerprint reader considerations, see Chapter 03 — Fingerprint and our guide to DDA accessibility requirements for smart locks.
Yes — the Keyin-L already includes a built-in fingerprint reader as one of its six access methods. The Keyin + Finger would only be relevant to a Keyin-L owner who wants a second fingerprint reader at a different location or mounting height — for example, at a lower height for a wheelchair user or child. The primary use case for this add-on is the Keyin S, which has no built-in fingerprint reader. For an overview of fingerprint reader considerations, see Chapter 03 — Fingerprint and our guide to DDA accessibility requirements for smart locks.
Can I mount the reader on a wall next to the door rather than on the door itself?
Yes — because it connects via Bluetooth rather than a wired connection, it can be mounted anywhere within Bluetooth range of the host lock. A wall-mount next to the door is a common installation. Use the double-sided tape option for wall surfaces where drilling is not permitted, or the screw mount for a more permanent fixing. Check the Bluetooth range specification in your lock's manual to confirm the reader will communicate reliably from the intended position. For general installation guidance, see Chapter 12 — Installation Mistakes to Avoid.
Yes — because it connects via Bluetooth rather than a wired connection, it can be mounted anywhere within Bluetooth range of the host lock. A wall-mount next to the door is a common installation. Use the double-sided tape option for wall surfaces where drilling is not permitted, or the screw mount for a more permanent fixing. Check the Bluetooth range specification in your lock's manual to confirm the reader will communicate reliably from the intended position. For general installation guidance, see Chapter 12 — Installation Mistakes to Avoid.
If the reader's batteries go flat, can I still get into the house?
Yes. If the Keyin + Finger reader runs out of power, fingerprint access via this unit is unavailable. However, your host Keyin lock (Keyin S or Keyin-L) continues to operate independently — PIN keypad, RFID, Bluetooth app, and mechanical key override all remain fully functional. Replace the reader's AAA batteries to restore fingerprint access. Monitor low-battery alerts in the Keyin Plus app. See Mechanical Key Override — what to do when the battery dies for the full range of backup access options on Keyin locks.
Yes. If the Keyin + Finger reader runs out of power, fingerprint access via this unit is unavailable. However, your host Keyin lock (Keyin S or Keyin-L) continues to operate independently — PIN keypad, RFID, Bluetooth app, and mechanical key override all remain fully functional. Replace the reader's AAA batteries to restore fingerprint access. Monitor low-battery alerts in the Keyin Plus app. See Mechanical Key Override — what to do when the battery dies for the full range of backup access options on Keyin locks.
Does the Keyin + Finger need a WiFi bridge or gateway to work?
No. The Keyin + Finger connects to the host lock directly via Bluetooth — no gateway, hub, or internet connection is required for fingerprint unlock to function. A WiFi bridge on the host lock is only needed for remote app access and live status updates, which are host lock functions unrelated to the fingerprint reader. For more on when a gateway adds genuine value and how to avoid band-steering connectivity problems, see Chapter 08 — What a Gateway Does and our blog on why smart locks drop off WiFi.
No. The Keyin + Finger connects to the host lock directly via Bluetooth — no gateway, hub, or internet connection is required for fingerprint unlock to function. A WiFi bridge on the host lock is only needed for remote app access and live status updates, which are host lock functions unrelated to the fingerprint reader. For more on when a gateway adds genuine value and how to avoid band-steering connectivity problems, see Chapter 08 — What a Gateway Does and our blog on why smart locks drop off WiFi.
Additional Information
Fingerprint Readers — Realistic Performance Expectations
Fingerprint readers on smart locks work well for the majority of users under typical conditions. However, rejection rates increase with wet or dirty fingers, cuts or abrasions to the fingertip, and extreme cold (which affects skin conductivity). Registering two fingers per regular user (dominant hand and backup hand) is a practical step that improves reliability — see TTLock Tips — Fingerprint Enrolment Advice for best-practice enrolment guidance that applies across Bluetooth fingerprint platforms. For a full treatment of fingerprint access performance, sensor types, and DDA considerations, see Chapter 03 — Access Methods (fingerprint section).
Fingerprint readers on smart locks work well for the majority of users under typical conditions. However, rejection rates increase with wet or dirty fingers, cuts or abrasions to the fingertip, and extreme cold (which affects skin conductivity). Registering two fingers per regular user (dominant hand and backup hand) is a practical step that improves reliability — see TTLock Tips — Fingerprint Enrolment Advice for best-practice enrolment guidance that applies across Bluetooth fingerprint platforms. For a full treatment of fingerprint access performance, sensor types, and DDA considerations, see Chapter 03 — Access Methods (fingerprint section).
Keyin Platform Maturity — Confirm Before Committing
Keyin is a newer entrant to the Australian smart lock market. Before purchasing the Keyin + Finger add-on, confirm with Terry's that it is currently in stock, that it is confirmed compatible with your Keyin lock's current firmware, and that ongoing platform support is assured. The Keyin Plus app handles all fingerprint enrolment and management — confirm the app is available and functional on your device before completing the purchase. For how to evaluate smart lock platform maturity and support, see Which Smart Lock Platform Is Right for You — Five Questions That Decide It and Chapter 15 — Security and Data Sovereignty.
Keyin is a newer entrant to the Australian smart lock market. Before purchasing the Keyin + Finger add-on, confirm with Terry's that it is currently in stock, that it is confirmed compatible with your Keyin lock's current firmware, and that ongoing platform support is assured. The Keyin Plus app handles all fingerprint enrolment and management — confirm the app is available and functional on your device before completing the purchase. For how to evaluate smart lock platform maturity and support, see Which Smart Lock Platform Is Right for You — Five Questions That Decide It and Chapter 15 — Security and Data Sovereignty.
DDA and Accessibility Considerations
A separate Bluetooth fingerprint reader that can be mounted independently of the lock panel can be a practical solution for users who find the lock's built-in reader positioned inconveniently — for example, too high for a wheelchair user. The Keyin + Finger's flexible mount height may help in these situations. For a broader guide to accessibility and smart locks in NDIS and disability housing contexts, see Chapter 09 — DDA, NDIS and Accessibility and our blog on DDA Smart Locks for NDIS — AS1428.1 compliance.
A separate Bluetooth fingerprint reader that can be mounted independently of the lock panel can be a practical solution for users who find the lock's built-in reader positioned inconveniently — for example, too high for a wheelchair user. The Keyin + Finger's flexible mount height may help in these situations. For a broader guide to accessibility and smart locks in NDIS and disability housing contexts, see Chapter 09 — DDA, NDIS and Accessibility and our blog on DDA Smart Locks for NDIS — AS1428.1 compliance.
Smart Lock Accessory Lifespan
The Keyin + Finger is an electromechanical accessory. Its longevity depends on mounting stability, exposure conditions, and the maturity of the Keyin platform's firmware support over time. For honest context on what affects electronic door lock component lifespan in Australian conditions, see How Long Do Digital Door Locks Last — Realistic Expectations.
The Keyin + Finger is an electromechanical accessory. Its longevity depends on mounting stability, exposure conditions, and the maturity of the Keyin platform's firmware support over time. For honest context on what affects electronic door lock component lifespan in Australian conditions, see How Long Do Digital Door Locks Last — Realistic Expectations.
Warranty
Keyin Warranty
Warranty terms for the Keyin + Finger are managed by Terry's Gold Coast Smart Locks. Contact Terry's directly for warranty support, claims, and any product faults. All products are also covered by Australian Consumer Law guarantees, which apply independently of the manufacturer's warranty period.
Warranty terms for the Keyin + Finger are managed by Terry's Gold Coast Smart Locks. Contact Terry's directly for warranty support, claims, and any product faults. All products are also covered by Australian Consumer Law guarantees, which apply independently of the manufacturer's warranty period.
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