Auslock Super Slim S3B — Smart Mortice Lock
The Auslock Super Slim S3B is a full mortice smart lock designed for modern timber and aluminium doors where a narrow, low-profile panel is essential. At just 33 mm wide and 280 mm tall, the S3B disappears into the door stile rather than dominating it — while still delivering five access methods, Auslock App management, and optional remote access via the G2 or G3 gateway. Available in Black, White/Silver, and White/Champagne Gold.
The S3B suits both hinged and sliding doors, making it one of the more versatile entries in the Auslock range. Three square shaft sizes (50, 57, and 67 mm) are included in the box to accommodate doors across the 35–60 mm thickness range without additional hardware.
If your door has a narrow frame or tight stile, you may want to explore our range of slim profile smart locks designed specifically for aluminium and narrow-frame doors. These options can suit different door types, backsets, and handle styles.
View all slim-style smart locks for narrow frame doors
Key Features
- Ultra-slim 33 mm wide panel — designed for narrow door stiles and modern aluminium frames
- Full mortice lock body included — complete lever and cylinder replacement in one kit
- Five access methods: fingerprint, PIN code, RFID card, Bluetooth app, and mechanical backup key
- Suits both hinged and sliding door configurations — handle direction is field-adjustable
- Three square shaft sizes in the box (50/57/67 mm) — covers the full 35–60 mm door thickness range
- Auto-lock and passage mode configurable via the Auslock App
- USB-C emergency power port on front panel — connect a power bank if batteries are flat
- Up to 200 fingerprints, 200 RFID cards, 150 PIN codes stored on device
- Google Assistant and Amazon Alexa voice control (gateway required)
- Low-battery alert below 4.8 V; keep mechanical keys outside the premises
- Available in three finishes: Black, White/Silver, White/Champagne Gold
Access Methods
Fingerprint
RFID Card / Tag
Bluetooth App
Voice (Google / Alexa)
Mechanical Key
What's in the Box
- Front panel assembly (with keypad and fingerprint sensor) ×1
- Back panel assembly (interior handle) ×1
- Mortice lock body ×1
- RFID key tags ×3; Mechanical override keys ×2
- Strike plate ×1; Strike box ×1
- Square shafts: 50 mm ×1, 57 mm ×1, 67 mm ×1 (three sizes for door thickness compatibility)
- Spring ×1; Hexagonal wrench ×1
- Screw stubs: M5×30 mm ×2; M5×35 mm ×2
- Sliding screw M5×11 mm ×1
- Mortice screws: M5×10 mm (aluminium door) ×4; M4×25 mm (timber door) ×4
- M5×25 mm ×1; M5×30 mm ×1; M5×40 mm ×1; M5×50 mm ×1; M5×60 mm ×1
- User manual
Suitable Uses
- Narrow-stile aluminium doors where a standard-width mortice panel would not fit
- Modern timber entry doors — front door replacement in a slim, contemporary profile
- Sliding doors — handle direction is field-adjustable during installation
- Apartments and strata properties with slim aluminium entrance doors
- Airbnb and short-stay rentals — shareable timed PIN codes, remote access via gateway. See Chapter 07 — Smart locks for Airbnb.
- Small offices and co-working spaces with rotating staff access
Auslock Slim Series — Full Range
The S3B sits within the Auslock slim lock family. If the S3B panel (33 mm wide) is too narrow for your door or you need a sliding-specific variant, the S31B series offers a wider panel with the same access methods.
Specifications
Available Finish Options
-
Black
-
White / Silver
-
White / Champagne Gold
Dimensions
Battery, Power & Backup
- Batteries: 4 × AAA alkaline (6 V). Note this is AAA, not AA — smaller cells than the H05/H06 series.
- Low-battery alert: triggered when voltage drops below 4.8 V. Replace all four cells immediately — do not mix old and new batteries.
- Emergency power: if batteries are flat, connect a USB power bank to the USB-C port on the front panel to operate the lock temporarily.
- Keep a mechanical key outside the premises at all times as a separate failsafe.
Installation Video
Auslock has put together an installation guide for the S3B — the video quality is genuinely good. The AI voiceover, however, is doing its very best and should be commended for the effort, if not quite the execution. Mute optional; the visuals carry it. Watch on YouTube →
Remote App Access & Gateway
The S3B connects to the Auslock App via Bluetooth for local control (within ~5 m). For remote access from anywhere — locking, unlocking, viewing history, managing credentials, and enabling voice control — an Auslock Gateway (sold separately) is required.
Frequently Asked Questions
The lock accepts my code but the door does not open — what do I check?
Start by replacing all four AAA batteries with fresh brand-name alkaline cells. Then test with the door open for several cycles — if the lock operates smoothly open but resists when closed, the mortice body is binding against the strike plate. Even 1–2 mm of door sag or frame misalignment can cause this. Adjust the strike plate position before blaming the lock electronics.
My permanent passcode stopped working — why?
Permanent passcodes must be used at least once within 24 hours of creation, otherwise they auto-expire as a security measure. If a code was created and not tested immediately, it will need to be deleted and recreated. Create it, test it from the keypad right away, and it will then remain active indefinitely.
The fingerprint reader is inconsistent — how do I improve it?
Clean the sensor with a dry microfibre cloth. Delete the fingerprint and re-enrol, presenting the same finger at slightly different angles across 2–3 enrolment passes. Add a second finger as backup. If inconsistency continues, replace the AAA batteries — low battery voltage degrades fingerprint sensor performance before the low-voltage alarm triggers.
Passage mode is set but the door is not staying unlocked — why?
Passage mode requires a successful unlock via any method first before it activates. Touch the keypad, enter a valid code, and once the lock has operated, passage mode will take effect. To lock the door manually while in passage mode, press and hold the ★ (asterisk) key on the touchpad.
How do I set up voice control with Google or Alexa?
Voice control requires a G2 or G3 gateway to be connected and online. For Google Assistant, link your Auslock account via the ScienerSmart skill in the Google Home app (search "ScienerSmart" under Works with Google). For Amazon Alexa, enable the ScienerSmart skill in the Alexa app and authorise with your Auslock account credentials. Voice unlock requires a confirmation code — set this up in the app or Google Home settings. Locking by voice does not require a code.
How do I factory reset the lock?
Open the back panel battery cover. Hold the Reset button for 5 seconds, then enter 000# on the keypad. All users, codes, cards, and fingerprints are removed. Re-add the lock to the Auslock App as admin and recreate all credentials. Always perform a reset with the door open.
The handle has no response from outside but works from inside — motor sounds normal.
The clutch triangle (inside the spindle hub) is installed in the wrong orientation. Remove the front panel, check the clutch direction marking, refit with the arrow aligned correctly per the installation diagram, and retest.
How many wrong PIN attempts before lockout?
Five consecutive wrong entries lock the keypad for 5 minutes. All other access methods — fingerprint, RFID, Bluetooth app, and mechanical key — continue to work during the lockout period.
Additional Information
App platform: The S3B runs on the Auslock App — a dedicated platform separate from TTLock or Tuya. The app supports iOS and Android, multiple admin levels, e-key sharing, scheduled access, and full unlock records. Remote access and voice control require an Auslock G2 or G3 gateway. Not sure which platform suits your situation? See Chapter 15 — Choosing the right smart lock app platform.
Managing multiple locks and users: One Auslock account can manage multiple locks. Name each lock clearly in the app — for example, "Front Door" or "Unit 3." Create individual named codes for each person (guest, cleaner, staff) rather than sharing a single code. This makes the activity log readable and allows you to remove one person's access without changing everyone else's credentials. A single RFID card or fob can be enrolled on multiple locks by adding it to each lock individually in the app.
Passcode management tips: Permanent codes must be tested within 24 hours of creation or they auto-expire. Timed codes work well for guests — set the start time to check-in and expiry to 30–60 minutes after checkout. Verify the timezone setting in the app matches your property location before saving timed codes. For cleaners or recurring contractors, use a Cyclic/Recurring code set to their regular access window.
Battery notes: The S3B uses AAA cells (not AA). Use brand-name alkaline only — do not mix old and new cells and do not use rechargeable cells. The main causes of shorter-than-expected battery life are door misalignment causing the motor to strain, and the use of mixed or low-quality batteries. If the lock sounds laboured during operation, test with the door open — if smooth open but difficult closed, the strike plate needs adjustment before the next battery replacement.
IP55 and outdoor use: The S3B is rated IP55 (per catalogue) — suitable for sheltered outdoor doors such as covered entries and porticos. Avoid direct rain, heavy splash, or prolonged high humidity. Not rated for fully exposed outdoor gate use. See Chapter 11 — IP ratings explained.
Lifespan: See how long digital door locks last in Australian conditions.
Warranty
This Auslock product is backed by a 12-month limited manufacturer's warranty covering defects in materials and internal electronic components under normal residential use. All warranty claims are handled by Terry's Tradies Pty Ltd — contact us in the first instance and we'll take care of it from there. View our Returns & Warranty policy.
PDF Downloads
Auslock App User Manual (PDF)
Auslock Alexa Setup Guide (PDF)
Auslock Google Home Setup Guide (PDF)
Auslock 2026 Product Catalogue (PDF)
For all Auslock manuals, installation templates, and resources, visit the Auslock PDF Resources page.
What's in the Box — Auslock Super Slim S3B
- Front panel assembly (with keypad and fingerprint sensor) ×1
- Back panel assembly (interior handle) ×1
- Mortice lock body ×1
- RFID key tags ×3; Mechanical override keys ×2
- Strike plate ×1; Strike box ×1
- Square shafts: 50 mm ×1, 57 mm ×1, 67 mm ×1
- Spring ×1; Hexagonal wrench ×1
- Screw stubs: M5×30 mm ×2; M5×35 mm ×2
- Sliding screw M5×11 mm ×1
- Mortice screws: M5×10 mm (aluminium door) ×4; M4×25 mm (timber door) ×4
- M5×25 mm ×1; M5×30 mm ×1; M5×40 mm ×1; M5×50 mm ×1; M5×60 mm ×1
- User manual
Dimensions — Auslock Super Slim S3B
Auslock Super Slim S3B User Manual
Auslock Warranty
All Auslock products purchased through Terry's Tradies Pty Ltd (trading as Terry's Gold Coast Smart Locks and its associated websites and subsidiaries) are backed by a 12-month limited manufacturer's warranty. If something isn't right, contact us first — we manage all warranty assessments on your behalf and will work with you to get it resolved.
Warranty Summary
How to Make a Claim
- Contact Terry's Tradies Pty Ltd at your original place of purchase with a description of the fault.
- Have your proof of purchase ready (receipt or order confirmation).
- Provide clear photos and/or video of the defect — this is required before any assessment can begin.
- We may ask you to complete troubleshooting steps or a technical support form before the item is returned. Do not send the product back without our written approval.
- If the claim is approved, we will arrange the next steps with you directly — including return freight where applicable.
What the Warranty Doesn't Cover
The following are not covered under the Auslock manufacturer's warranty:
- Incorrect or improper installation
- Door or frame misalignment
- Incorrect mortise, latch, or backset selection
- Installation on doors outside the product's specifications
- Environmental exposure beyond the product's stated IP rating
- Water ingress not consistent with the product's IP rating
- Power surge, fire, flood, lightning, or other natural disaster
- Cosmetic damage or normal wear and tear
- Battery misuse or leakage
- Forced entry, vandalism, or tampering
- Unauthorised modification
- Use of non-Auslock components
- Commercial or high-traffic use (unless approved in writing)
Rechargeable battery products (Models A01, A02, A03, A519, A619): Battery-related damage is excluded where a non-certified charger, fast charger, incorrect voltage (outside 5.2V / 2A), third-party battery, or unsuitable charging environment has been used.
Change-of-Mind Returns
Change-of-mind returns are accepted at our discretion and subject to the manufacturer's return conditions. If you've changed your mind, contact us within 14 days of receiving your order and we'll let you know if a return is possible and what applies.
To be eligible, products must be:
- Unused and uninstalled
- Not powered on, activated, paired, programmed, or configured in any way
- In original, fully sealed condition with all packaging, accessories, and components
Where a return is approved, a 20% restocking fee applies and return shipping is at your cost. Products that have been installed, powered on, or had any credentials registered are not eligible for return.
Australian Consumer Law
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law (ACL). You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have goods repaired or replaced if they fail to be of acceptable quality and the failure does not amount to a major failure. Nothing in this policy limits or excludes your rights under the ACL.
It can be overwhelming with all the choices out there. We can help! We are experts with decades of experience in fitting locks of all types, not just Smart Locks. It is a free service we offer, and with just some photos and a few minutes of your time you can get expert advice and product recommendations tailored precisely to suit your needs.
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