Door Knob,Blacksmith 4 in 1 Smart Door Knob With Fingerprint,App,Password and Key Quick Unlock,Biometric Smart Door Lock for Home, Apartment, Office
Door Knob,Blacksmith 4 in 1 Smart Door Knob With Fingerprint,App,Password and Key Quick Unlock,Biometric Smart Door Lock for Home, Apartment, Office
The Blacksmith Smart Door Knob in black provides a versatile 4-in-1 keyless entry solution, allowing you to unlock your door with fingerprint recognition, a personalized password, the convenient app, or a traditional key. This biometric smart lock features a rapid 0.1-second fingerprint sensor that can store up to 100 unique fingerprints. The accompanying app offers comprehensive control, enabling you to effortlessly add fingerprints and passwords, review unlock records, and configure settings such as auto-lock, passage mode, and privacy mode for enhanced security. Additionally, the door knob includes an auto-locking feature that can be set to engage 5 seconds after entry. Designed for easy installation with just a screwdriver, it is compatible with most standard US doors, making it ideal for homes, apartments, and offices. Unlock your door using four convenient methods: fingerprint, password, app control, or a traditional key. Experience rapid access with biometric fingerprint recognition, identifying your print in just 0.1 seconds. Store up to 100 unique fingerprints, accommodating multiple users with ease. Manage your smart door knob effortlessly through a complimentary application on your smartphone. The app allows you to add and manage fingerprints and passwords, review unlock records, and configure auto-lock, passage, and privacy modes. Benefit from the auto-locking feature, which can be set to secure your door automatically after a customizable duration, such as 5 seco
Specifications
- Hardware lock type: Smart Lock
- Brand: Blacksmith
- Material: Metal
- Finish: Smart Door Knob
- Color: Black
- Compatibility: 1
- Rec. use: Office
- Manufacturer: Blacksmith
- Items included: Smart Door Knob
- Accessories: Smart Door Knob
- Size: One Size
- Color category: Black
Size chart
| Size | S | M | L | XL | 2XL | 3XL |
|---|---|---|---|---|---|---|
| Tee — chest width (in) | 18 | 20 | 22 | 24 | 26 | 28 |
| Tee — body length (in) | 28 | 29 | 30 | 31 | 32 | 33 |
| Fits chest (in) | 34–36 | 38–40 | 42–44 | 46–48 | 50–52 | 54–56 |
Shipping, returns & fit
Shipping is free on U.S. orders of $75 or more; orders under $75 ship for a flat $6.95. We ship to U.S. addresses only.
Every piece is printed to order, so allow 1–3 business days for production and packing. Once shipped, delivery normally takes another 3–8 business days, with a tracking link emailed to you. Full details in our Shipping Policy.
You have 30 days from delivery to return any unworn, unwashed item with tags attached. Return postage is paid by the buyer, unless your item arrived damaged, wrong, or never arrived — in those cases we replace it or refund you in full and cover the postage. No restocking fees.
Approved refunds go back to your original payment method within 5–10 business days. See the full Refund Policy.
Unisex relaxed fit, sizes S to 3XL. True to size for a relaxed look; go one size up for the oversized, boxy 90s look.
Heavyweight 100% cotton, garment dyed and preshrunk. Wash cold inside out, tumble dry low. Every blank is dyed in batches, so the exact shade of wash varies slightly piece to piece — that is the vintage look, not a defect.
Email support@70srockshop.com or use our contact form. A real person in Union, Ohio reads every message, Mon–Fri, 9 AM – 5 PM ET — usually answered within one business day.