• Interlock_Mercury_G4 Dual Key | First in the World
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Interlock Mercury G4 DualKey™ Smart Gate Lock

$749.00 SGD
$799.00 SGD $749.00 SGD
Sale Sold out

Access Modes

  • Unlocking from outside
    - fingerprint, passcode, NFC Card/Tag, facial recognition, palm vein recognition, remote unlock (app/wifi), mechanical key
  • Unlocking from inside
    - fingerprint, mechanical key, Remote keyfob controller

Key Highlights

World’s First DualKey™ Smart Gate Lock

Features dedicated physical key unlocking from both indoor and outdoor sides of the gate for enhanced emergency access redundancy and reduced lockout risks.

Facial Recognition

Unlock your gate hands-free using intelligent facial authentication technology designed for fast and seamless entry.

Palm Vein Recognition

Advanced biometric vein authentication adds another layer of high-security access beyond traditional fingerprint systems.

WiFi Remote Unlocking

Unlock and monitor your gate remotely through the mobile app from anywhere.

Mobile Video Intercom

View and communicate with visitors directly from your smartphone in real time.

Motion Detection Alerts

Receive notifications when movement is detected near your gate for added situational awareness.

Built For Singapore Homes

Designed specifically for HDB, condo, and landed property metal gate setups in Singapore.

Security-First Engineering

Combines smart access convenience with true mechanical fallback redundancy for greater long-term reliability.

What's Included

Includes:

  • 1 years local warranty
  • 2 Mechanical keys
  • 1 Remote control
  • 2 tags (worth up to $40)
  • Complimentary Trial for Cloud Storage (for video recordings)

Storage Information
This model includes a complimentary free trial cloud storage for video recordings. This trial includes a cloud image storage for the latest 14 days is also included at no extra charge. After the trial, continued cloud video storage is optional and may require a subscription via the app provider. Even without subscription, video recordings can still be stored locally where supported.

Additional Features

  • DualKey™ Emergency Access System
  • Real-Time Visitor Monitoring
  • Mobile Motion Notifications
  • Indoor & Outdoor Key Unlocking

Description

The Interlock Mercury G4 DualKey™ Smart Gate Lock is engineered with one priority above all else — security without compromise.

Introducing the world’s first DualKey™ Smart Gate Lock system, the Mercury G4 combines advanced smart access technology with true physical key redundancy on both sides of the gate. Unlike conventional digital gate locks that only provide emergency key override from the interior side, the G4 features dedicated key access for both indoor and outdoor unlocking.

This creates a true fail-safe access system designed to reduce accidental lockout risks while maintaining the convenience of modern smart lock technology.

Powered with facial recognition, palm vein authentication, remote unlocking, mobile video intercom, and motion detection alerts, the Mercury G4 delivers premium smart security for Singapore HDB, condo, and landed homes.

Built specifically for Singapore’s metal gate environments, the G4 is designed around real-world usability, family convenience, and long-term reliability — not just smart features alone.

The Mercury G4 is not just designed to be smart.
It is designed to be dependable.

 

Important Cloud Storage Notice: Certain smart monitoring features may include complimentary cloud storage trial access. After the trial period, subscription fees may apply for extended video cloud storage services. Photo snapshots and selected local storage functions may continue to operate without subscription depending on configuration.

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Note: Product visuals are presented for illustrative purposes only and may vary slightly in colour, finish, proportions, and final installed appearance. For the most realistic representation, please refer to our Customer Gallery featuring actual installation photos.

Frequently Asked Questions

Have questions? We're here to help you.

The Mercury G4 is designed with Interlock DualKey™ Technology, allowing physical key unlocking from both the indoor and outdoor sides of the gate. Most smart gate locks only provide mechanical key access from the inside, while the G4 adds true emergency access redundancy.

DualKey™ Technology is Interlock’s security-first gate lock design that provides dedicated mechanical key access on both sides of the gate. This gives homeowners an added physical backup method in case of emergency, battery depletion, or electronic failure.

DualKey™ helps reduce the risk of being locked out by providing key access from both inside and outside the gate. It is especially useful for families, elderly users, rental homes, and homeowners who want a stronger fail-safe access system.

Yes. The Mercury G4 supports WiFi app remote unlocking, allowing homeowners to unlock and manage gate access through the mobile app when connected to the internet.

Yes. The Mercury G4 supports AI facial recognition, palm vein recognition, fingerprint unlocking, PIN code access, RFID card access, app remote unlock, and mechanical key access.

Yes. The Mercury G4 supports mobile video intercom functionality, allowing you to view and speak to visitors through your smartphone.

Yes. The Mercury G4 is designed for common Singapore metal gate setups, making it suitable for HDB flats, condominiums, and landed properties.

The Mercury G4 is designed with multiple emergency access options. It includes low-battery alerts, an emergency USB-C charging port that allows temporary power using a portable charger, and DualKey™ mechanical key access from both indoor and outdoor sides of the gate.

Basic lock functions can operate without a cloud subscription depending on configuration. However, extended video cloud storage features may require a subscription after the complimentary trial period. Photo snapshots and selected local storage functions may continue to operate without subscription depending on setup.