ZKTeco TL300B: Advanced Fingerprint Lock with Bluetooth, Voice Guide, and Low Power Consumption

The ZKTeco TL300B is a Bluetooth-enabled fingerprint smart lock for small commercial and residential doors. The semi-conductive fingerprint sensor reads dry, calloused or worn fingers reliably, and the ZK SmartKey app gives owners user management, audit logs and mobile unlock from a phone. Reversible handle for left or right-hand doors, with around three years of battery life on standard AA cells.

Semi-conductive fingerprint sensor
ZK SmartKey app via Bluetooth
Around three years on 4 x AA

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Description

The ZKTeco TL300B is a sensible fit for back-of-house office doors, small retail premises, holiday accommodation and home offices. Anywhere keys-on-hooks are not working anymore but a full networked access system is more than the door needs. Self-contained lock that just needs four AA batteries to run.

Why the fingerprint sensor matters

The TL300B uses a semi-conductive sensor rather than the older optical type. In practice that means reliable reads on dry, rough or callused fingers, a common problem with optical sensors in trades, hospitality and outdoor work. Enrolment takes about 10 seconds per finger.

Mobile management via ZK SmartKey

Add and revoke users from your phone: Useful for cleaners, contractors and short-term tenants.
Audit log: See who unlocked the door and when.
Bluetooth unlock: Hand out temporary phone access without enrolling a fingerprint.
Voice guide: Walks first-time users through enrolment.

Practical install notes

Reversible: Configures for left or right-hand doors without re-machining.
Battery life: Around three years on four AA alkalines under normal residential use.
Emergency access: External micro-USB power port lets you wake a flat lock with a power bank, plus a mechanical key override.
Door fit: Confirm thickness and lock backset before ordering. Standard mortise prep but not narrow-stile aluminium doors.

Specifications

FeatureSpecification
MaterialZinc Alloy
MortiseChina Standard Anti-theft Mortise
User Capacity100
Fingerprint SensorSemi-conductor (silicon)
Card ReaderMifare Card Supported
CommunicationBLE4.0
LanguageEnglish / Spanish / Portuguese
Power Supply8 * AA Alkaline Battery (not included)
Temperature-20 °C to 55 °C
Door Thickness38 - 60 mm (standard)
Dimensions (W*L*D)Front: 78 * 340 * 31 (mm)
Back: 78 * 340 * 27 (mm)
Color OptionsDull Nickel / Black

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