SL03-T420H

SL03-T420H is a ZigBee digital lever mortise lock specially designed for the apartment scenarios. In this new generation of smart lock products, ZKTeco’s T4 smart lock series bring a modern and distinctive family-style industry design, combining an aluminum alloy housing and a 2.5D tempered glass panel.

To ensure robust physical security, the standard mortise lock is designed with an anti-card auxiliary latch and a deadbolt. Users can easily lift the handle to lock the door from inside or outside. Additionally, the door lock is equipped with a built-in detector, enabling the tamper-alarm function for enhanced protection.

Powered by the reliable Zigbee technology, the door lock can be remotely controlled and monitored in real time, significantly improving management and maintenance efficiency. More importantly, the Zigbee technology shows a better performance in terms of low power consumption, stable network connectivity and cyber security. SL03-T420H will be an ideal choice for apartments, dormitories and short-term rentals, offering a more reliable, secure and convenient lifestyle.

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Parameters

Material
Housing Material

Aluminum Alloy
Color Options

Matt Black, Space Gray
Front Panel

Tempered Glass (2.5D edge processing)
Touch keypad (12 digits)
Mortise Lock
Type

European Standard
Backset

55 mm
Axe Distance

72 mm
Square Spindle

7.8 mm
Faceplate (H×W)

24×235 mm; squared standard
Technical
Unlocking Methods

Passcode (dynamic/ periodic) ; Card (IC/ NFC)
Mobile HTML5 Links ; Mechanical Key.
Capacity

User: 100; Passcode: 100; Card: 100;
Local Records: 500
Card Reader

IC Card @13.56 MHz
NFC Supported (ISO/IEC 14443A)
Audio Prompt Language

English, Spanish
Indicator

Green (access granted)
Red (Verification failed)
Blue (OTA update)
White Light (Keypad backlight)
Wireless Communication

Zigbee 3.0 (IEEE 802.15.4)
Emergency Power

USB Type-C Interface, DC 5V
Power Supply

8 x AA Alkaline Batteries (Not Provided)
Battery Life

approximately 2.5 years
Supported Software

ZKBio CVSecurity SmartLock
Door Compatibility
Door Type

Wooden Swing Door
Door Thickness

35 to 60 mm (standard)
Opening Direction

All Direction (reversible lever design)
General
Net Weight

2.5 kg
Gross Weight

3.0 kg
Product Dimensions (H×W×T)

Exterior: 330.9×75.2×25.3 mm
Interior: 330.9×75.2×24.5 mm
(* Lever not included)
Package Dimensions (L×W×H)

225.0×130.0×430.0 mm
Operating Temperature

-20°C to 55°C (-4°F to 131°F)
Operating Humidity

10% to 90% RH (Non-condensing)
Certifications

CE, FCC
Standard Functions

Unlock, Temporary Passcode (dynamic, periodic), Anti-Peeping Codes (up to 20 digits), Passage Mode, Tamper Alarm, Low Battery Alarm, Continuous Authentication Error Alarm,
Firmware OTA
Package Contents

Exterior Assembly, Interior Assembly, Mortise Kit, IC Card * 2, Mechanical Key * 2, Studs &
Screws Kit, Installation Template, Installation Guide

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