At a glance
- Fingerprint Capacity
- 100
- Door Thickness
- 30 to 60 mm (standard)
- Backset
- Adjustable 60 or 70 mm
- Battery Life
- Up to 1.5 years
- Colour Options
- Silver, grey
- Mortise
- American standard single latch
ZKTeco ML300 Smart Door Lock
Price on request
At a glance
- Fingerprint Capacity
- 100
- Door Thickness
- 30 to 60 mm (standard)
- Backset
- Adjustable 60 or 70 mm
- Battery Life
- Up to 1.5 years
- Colour Options
- Silver, grey
- Mortise
- American standard single latch
Entry-level fingerprint and keypad smart lock for houses and apartments that replaces the lever or knob on a single-hole door, usually with no new cut-outs. Bluetooth 5.0, phone unlocking, Alexa and Google Assistant voice control through a gateway.
Include the required quantity and configuration in your quote request. Price and availability will be confirmed in the quotation.
- WarrantyManufacturer warranty under ZKTeco's terms: 1 year. Warranty claims
- DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery
Overview
What it is
The ZKTeco ML300 is an entry-level fingerprint and keypad smart lock with Bluetooth 5.0. It is designed to replace the existing lever or knob on a single-hole door, so installation is quick and the door usually needs no new cut-outs.
What it is used for
It suits private houses, junior apartments, bedrooms, home offices and short-term rentals where a simple keyless upgrade is wanted without a full mortise lock change.
Key features
- Unlock by smartphone, capacitive fingerprint or passcode
- 100 fingerprints and 100 passcodes
- ZSmart app over Bluetooth; with the Bluetooth gateway, remote unlock, log history and temporary or dynamic passcodes
- Voice unlock with Amazon Alexa or Google Assistant when paired through the gateway
- American standard single latch, with German standard mortise optional
- Backset adjustable to 60 or 70 mm (single latch)
- 4 AA alkaline batteries, up to 1.5 years (about 10,000 accesses), Micro USB backup power
Buying considerations
Remote access and voice control need the separate Bluetooth gateway, so add one if you want to unlock from outside Bluetooth range. Doors 30 to 60 mm thick are supported. There is no card reader on this model. Rated -20 °C to 55 °C; CE-RED and FCC ID.
Compatibility and what you need
You need the ZSmart app on a smartphone, four AA alkaline batteries (not included), and optionally a Bluetooth gateway with Wi-Fi for remote and voice features.
Features

Size and fit
- Backset
- Adjustable 60 or 70 mm (only for single latch)
- Dimensions
- Front: 75 x 138 x 23 (mm) Back: 75 x 150 x 27 (mm)
- Door Thickness
- 30 to 60 mm (standard)
Technical specifications
Key facts
- What is it?
- Home & Office Smart LocksBrand ZKTeco
- How is it powered?
- 4 x AA alkaline batteries (not included)
- What capacity does it support?
- 100 fingerprints100 users
- Which documents are available?
- Installation / drawing, user manual, brochure, software (2), online specifications Open documents
- Can SecurityGearHub help with installation?
- Setup guidanceManuals, wiring guides and answers to setup questions. On-site work is arranged separately where available. Ask about installation
- Not stated by the manufacturer
- outdoor rating, box contents
RelatedGuideSmart door lock buying guideDocumentsAll ZKTeco documents
General
- Identification Mode
- Smart Phone, Fingerprint and Passcode
- Fingerprint Capacity
- 100
- Passcode Capacity
- 100
- Remote Access
- Bluetooth Gateway Required
- Voice Control
- Amazon Alexa, Google Assistant
- Backup Power Interface
- Micro-USB Port Supported
- Communication
- Bluetooth 5.0
- Fingerprint Sensor
- Capacitive (silicon)
- Mortise
- American standard single latch; German standard mortise optional
- User Capacity
- 100
Input
- Battery Life
- Up to 1.5 years (about 10,000 access)
- Power Supply
- 4 x AA alkaline batteries (not included)
Environment
- Operating Temperature
- -20 °C to 55 °C
- Operating Humidity
- 10% ~ 90% RH (non-condensing)
Physical
- Case Material
- Zinc Alloy (Level and Front Panel) + ABS (Back Shell)
- Backset
- Adjustable 60 or 70 mm (only for single latch)
- Dimensions
- Front: 75 x 138 x 23 (mm) Back: 75 x 150 x 27 (mm)
- Door Thickness
- 30 to 60 mm (standard)
- Colour Options
- Silver, grey
Approvals
- Certifications
- CE-RED, FCC ID
- Warranty
- Manufacturer warranty under ZKTeco's terms: 1 year. How claims work
Product attributes and shipping details
| Brand | ZKTeco |
|---|---|
| Connectivity | USB |
| Verification | Fingerprint |
Downloads
Download software
- ZKTeco ZK-ML300 software (ZSmart (iOS))Version 2.0.4 · iOS 14.0+ · Released October 15, 2026Prerequisites: Bluetooth; Wi-Fi or gateway for remote functions; Remote functions need the ZKTeco Bluetooth gatewayLicence: Free; account requiredSoftware · Family · apps.apple.comView official download page
- ZKTeco ZK-ML300 software (ZSmart (Android))Version 2.0.4 · Android 7.0+ · Released October 15, 2026Prerequisites: Bluetooth; Wi-Fi or gateway for remote functions; Remote functions need the ZKTeco Bluetooth gatewayLicence: Free; account requiredSoftware · Family · play.google.comView official download page
Documentation
- ZKTeco ML300 brochureBrochure · This model · d1agmp9y4cki1i.cloudfront.netDownload
- ZKTeco ML300 product pageOnline specifications · This model · zkteco.inView official page
User manual
- ZKTeco ML300 user manualUser manual · This model · d1agmp9y4cki1i.cloudfront.netDownload
Installation guide
- ZKTeco ML300 installation drawingInstallation / drawing · This model · d1agmp9y4cki1i.cloudfront.netDownload
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