





Download the user manual for your model before purchase for ease of mind. If you have any questions along the way, our dedicated support team is here to help.
Products may only be returned in accordance with the Terms and Conditions or as otherwise required by law. Therefore, you should carefully review your order before placing any order for goods and services through this website.
Change of Mind
If the product remains unopened and the packaging is intact, and you wish to return or exchange it, you may notify us within 14 days after the delivery date. You may return the product for a full refund, but you will be responsible for the round-trip shipping costs. Refunds may take up to 14 days to process.
If the product has been opened, used/connected, or installed, it will be deemed as used and will not be accepted for return. We appreciate your understanding.
Damaged Items
If the product you receive is damaged, you may notify us by phone or email within 14 days from the delivery date, providing detailed information about the issue. You do not need to return the item. You only need to provide the SN code on the packaging, and once we confirm that the product has a quality issue, we will send you a brand-new replacement.
Warranty Limitations
All components (excluding batteries) are covered by a 2-year warranty from the date of purchase. Batteries are not covered under this warranty. The warranty does not apply to the surface finish or cosmetic damage of AT Smart Lock branded smart locks.
The warranty does not cover:
Improper installation of the product
Products not maintained according to our guidelines
Use of non-specified batteries
Products used beyond their specifications
Customised products
Normal wear and tear
Unauthorised modifications
Use of non-original parts
Accidents, abuse, or neglect
Exposure to corrosive substances
Products with brand labels removed
Consumers must return defective products to us for evaluation.
If the lock has been tampered with or the security label has been removed, the warranty will be void.
For on-site service related to lock issues, a fixed fee of AUD 180 applies, regardless of whether the product is under warranty.
Australian Consumer Law Protection
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
Compensation for any other reasonably foreseeable loss or damage
Repair or replacement of the goods if they fail to be of acceptable quality (and the failure does not amount to a major failure)
How to Make a Warranty Claim
If purchased from a retailer:
Safely package the product when returning it to prevent damage
Provide your warranty claim details, proof of purchase, and contact information
Submit the claim to the original retailer within the warranty period
If purchased directly from our website:
Contact us via phone or email to lodge your claim
Safely package the product together with a copy of your proof of purchase
Return the product to the address specified by us within the warranty period
Free Standard Delivery: We offer free standard delivery on all smart lock orders shipped within Australia.
All packages are sent from our Melbourne warehouse via Australia Post or DHL and include a tracking number. You will receive an email with your tracking information once your order has been dispatched.
Processing and Delivery Times:
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Order Processing: Orders are processed and dispatched from our warehouse in approximately 3–5 business days. Orders placed on weekends or public holidays will be processed on the next business day.
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Estimated Delivery: After dispatch, delivery typically takes 2–8 business days, depending on your location.
Incorrect Address Information: Please ensure that all name and address information is entered correctly at checkout. If a package is undeliverable due to an incorrect address provided by the customer, you may be required to pay additional shipping fees for a second delivery attempt. We will not be held responsible for packages that fail to be delivered in these circumstances.
Shipping Delays: We do everything we can to ensure your order arrives on time. If your delivery is delayed due to unforeseen circumstances (such as carrier or public holiday delays), we will make every effort to notify you via the email address or phone number you provided.
Contact Us: For any questions regarding the status of your delivery, please contact our customer service team at 1300 845 945 or email us at info@atsmartlock.com.au.
Finger Vein Smart Lock SV40
If your fingerprint's no good, use your finger vein.
For the whole family | Safer vein detection | Fully automated and convenient.


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All-in-One Smart Lock: Finger vein, PlN code, NFC, Mechanical key, and APP
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Full-auto mortise, ensuring quiet operation at all times.
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Finger vein recognition technology, suitable for the elderly and children.
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Supports Mi Home
Get rid of fingerprints. Finger veins are good for the whole family.
Finger vein recognition is suitable for all kinds of people, even the fingerprint is not good for the elderly, children, special people can be accurately and quickly identified with finger veins, the whole family is good to use.

Six-fold security protection to keep your home safe
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Indoor double sensor door opening
Indoor door opening requires double sensing to unlock the door after key + handle sensing area, automatic anti-cat-eye unlocking, anti-pet accidental unlocking
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electronic reverse lock
Only the administrator can open the electronic back-lock, so you can be more at ease at home alone, and children are not afraid of mistakenly unlocking the door.
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Anti-Black Box Unlocking
Designed with electromagnetic protection against interference from small black boxes
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Void code to prevent prying eyes
Maximum 16-digit dummy code can be entered to effectively prevent prying eyes.
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Emergency knob unlocking
Emergency emergency unlocking, such as fire, earthquake, panel damage, and do not have to worry about being locked at home
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UnionPay Certified Encryption Chip
High-level encrypted NFC chip for data security
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Secure
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Versatile
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Stable
Finger Vein Detection
Deep biometrics for greater security
Finger vein detection is hidden in the user's skin under the finger vein blood vessel image deeper biological information, difficult to steal and difficult to copy; with uniqueness, even identical twins finger vein information is not the same, higher security.

NO MORE
FINGERPRINT FRUSTRATION
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Seniors Faded Fingerprints
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Children Tender Fingerprints
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Wet
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Chap
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Worn Fingerprints
Door lock abnormality Timely alarm
Local Alerts + Remote App Notifications
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leave the door ajar
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unclosed
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Trial and error.
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The door lock was broken.
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Low battery

Sentinel Mode
Stay Secure While You’re Away
The Lockin SV40 alerts you if the door is opened from the inside while you’re away, adding an extra layer of protection to keep your home safe.

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emergency power
Type-C port at the bottom of the panel for emergency unlocking
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Extra long battery life
8x5 batteries, 12 months of battery life based on opening and closing the door 10 times a day
*Data from Deerhunter Labs -
Alloy Panel
Front and rear panels are made of integrated alloy frame, the same level of material used in automobile manufacturing.
Specification

Specification
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Access Methods
Finger Vein / PIN Code / APP / NFC Card / Mechanical Key
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Dimensions
L385 * W73 * H22 mm
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Color
Dark Grey
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Cylinder Type
Class C
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Emergency Power Supply
Type-C
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APP
MI Home
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Certification
CE
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PIN Code Length
6 digits, max 16 digit with Decoy PIN Code Supported, Up to 50 Groups
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Operating Temperature
-20°C - 55°C
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Compatible Door
Wood Door & Burglar-Proof Door
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Door Thickness
100 Groups
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Finger Veins
Wood Door & Burglar-Proof Door
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Power Supply
AA Batteries*8, 12 Months Lifetime
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Communication
Bluetooth / NFC
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Doorbell
Supported, Built-in doorbell
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Alerts
Door Ajar, Several Incorrect Access Attempts, Tampering Attempts, Low Battery
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Auto-Lock
Supported, 0.5s Auto-Lock
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Double Authentication
Supported
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Handle
Push-and-Pull
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Finger Vein Recognition
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Fully-Auto Mortise
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Built-in Doorbell
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Decoy PIN Code Supported
Still Not Sure? Here's what you could do next:
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Find Quick Answers:
Visit FAQGot questions? Our FAQ section covers everything from installation requirements to smart home compatibility. It’s the quickest way to find clear, detailed answers without waiting.
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Compare Products:
Compare Our LocksNot sure which lock is right for you? Take a look at our side-by-side product comparison. It highlights key features, access methods, and pricing so you can choose with confidence.
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Talk To Us:
Contact UsStill undecided? Our team is here to help. Reach out to us for personalised advice and recommendations tailored to your home and security needs.