DESLOC B200 Fingerprint Smart Lock with 2 Knobs
- Deadbolt plus knob set, round child-resistant knob
- Up to 50 fingerprints, unlock in under 0.3 s
- Fingerprint, PIN, app, eKeys, fobs, keys
- 4 AA batteries (not included), up to 12 months
- Auto-lock from 5 to 999 seconds
- IP54, -22F to 158F, BHMA Grade 3
- 24-month warranty
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A family-friendly fingerprint deadbolt and knob set with many entry methods and adjustable auto-lock. Remote and voice control need a separate gateway, and batteries are not included.
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ASIN: B0G8HXSM85Model: B200Category: Deadbolts
Overview
Parents and pet owners get a fingerprint deadbolt paired with a classic round knob that helps reduce accidental openings by children and pets. Entry works by fingerprint, code, app, fob, eKey or key, and the bolt throws itself after a set delay.
DESLOC packs many unlock methods and a configurable auto-lock into a set that installs with a screwdriver. Remote and voice control both depend on a separate gateway, and the app connects over Bluetooth only within close range.
Who it's for
Families with toddlers, older parents or frequent guests benefit from keyless codes and fingerprints plus a knob that resists accidental opening. Households wanting remote locking from work without extra hardware should look at a Wi-Fi model.
Pros and cons
- Many entry methods, including fobs
- Round knob reduces accidental openings
- Adjustable auto-lock timer
- USB-C emergency power port
- Gateway needed for remote and voice control
- Batteries not included
- Round latch recess needs a different faceplate
- Material listing conflicts between sections
Performance notes
Fingerprint reading uses a self-learning sensor that improves when the same finger is registered from several angles. The auto-lock timer throws the bolt after the chosen delay, as long as the door is fully closed and passage mode is off. Battery life varies with how often the lock is used.
Specifications
| Brand | Desloc |
|---|---|
| Model | B200 |
| Dimensions & fit | |
| Item weight | 4 lb |
| Item Dimensions | 7 x 10 x 5 inches |
| Item Weight | 4 pounds |
| Capacity & performance | |
| Fingerprint capacity | Up to 50 |
| Power & efficiency | |
| Power Source | 4 AA batteries (not included), USB-C emergency port |
| Battery life | Up to 12 months |
| Construction & materials | |
| Material Type | Zinc alloy knob (aluminum per spec table) |
| Finish Types | Painted |
| Color | Black |
| Compatibility & installation | |
| Connectivity Protocol | Bluetooth (TTLock app), G2 Gateway for remote and voice |
| Included components | |
| Included Components | Deadbolt and handle set |
| Unit Count | 1 Count |
| Warranty & support | |
| Manufacturer Warranty Description | 24 months, lifetime US phone support |
| Other details | |
| Lock Type | Biometric deadbolt |
| Style Name | Deadbolt and knob |
| Auto lock timer | 5 to 999 seconds |
| All-in-one Unlocking Options | Fingerprint, PIN, app, eKeys, fobs, physical keys |
| Certified Security & Outdoor Durability | IP54, BHMA Grade 3, -22F to 158F |
| Controller Type | Touch |
| Shape | Oval |
Frequently asked questions
What tools do I need to install the DESLOC B200?
The listing says a screwdriver is enough. Make sure the hole depth in the backset is greater than 1 inch, and contact DESLOC for a round drive-in faceplate if your latch recess is round.
Does the DESLOC B200 work with Alexa?
Yes, with Alexa and Google Assistant, but a G2 Gateway is required.
What happens if the DESLOC B200 batteries die?
A low battery indicator warns you first, and a USB-C emergency port provides backup power. Physical keys are also an unlock option.
Can I give guests temporary codes on the B200?
Yes. The TTLock app can create scheduled or temporary access codes.