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.

Palm Vein and Face Recognition, Red Dot Award-Winning Technology
The Lockin V5 Max uses palm vein and facial recognition as its primary biometric methods — both faster to enrol and easier for elderly or young family members than fingerprint scanning, since neither requires pressing firmly on a small sensor pad — and its underlying recognition technology has been recognised with a Red Dot Design Award, one of the most established design awards internationally.
Why Palm Vein Recognition
Palm vein scanning reads the unique pattern of veins beneath the skin of your palm, using near-infrared light rather than a surface scan. Because it reads a pattern under the skin rather than surface ridges, it isn't thrown off by wet hands, calluses, or the fine surface wear that can make older fingers harder for a standard fingerprint sensor to read reliably — which is exactly why it tends to work well for both young children and elderly household members.
Ways to Unlock
Palm vein, face and fingerprint recognition each store up to 50 profiles, alongside 50 PIN codes and 25 NFC tags, plus a physical key backup. One-time and periodic PIN codes are available for part-time cleaners or occasional guests, and the Bluetooth app works within about 5 metres of the lock — close enough for reliable use at the door without draining your phone's battery scanning for a connection from across the house.
Built-In Video Intercom
A 4-inch HD internal display doubles as a video intercom, with two-way calling, a 170-degree wide-angle view and night vision, so you can see and speak to whoever's at the door before opening it, from anywhere in the home.
Smart Home & Alerts
Works with Apple HomeKit and Xiaomi Mijia, with multi-facet intrusion sensors and alerts, an English/Chinese voice guide, a built-in doorbell function, and phone notifications when paired with a gateway.
Real installation photos from our customers.
Frequently Asked Questions
Have questions? We're here to help you.
Yes. Lockin V5 Max is one of the most advanced smart locks available, combining palm-vein and 3D facial recognition for fast, secure entry. It offers premium build quality, multiple unlock modes, and smart-home integration, making it ideal for modern homes.
The Lockin V5 Max is a high-end digital door lock featuring palm-vein recognition, 3D structured-light face recognition, fingerprint, PIN, NFC, and mechanical key access. It also supports Wi-Fi and Bluetooth connectivity for full smart control.
Yes. When connected via Wi-Fi or Bluetooth, the Lockin V5 Max allows remote unlocking, activity monitoring, notifications, and guest access through the MiHome app.
The Lockin V5 Max typically retails around SGD $949 in Singapore with professional installation included. Pricing may vary based on promotions or bundle options offered by Interlock Singapore.
The Lockin V5 Max is compatible with most wooden and metal security doors, supporting door thicknesses between 60mm and 120mm for a secure and proper fit.
It supports multiple unlock options: palm-vein recognition, 3D face recognition, fingerprint, PIN code, NFC card, app control, and mechanical key override for emergencies.
Yes. It integrates with Mi Home platforms, enabling smart automation, remote control.
The Lockin V5 Max typically comes with a 2-year warranty covering manufacturing defects. In addition, Interlock Singapore provides local support and after-sales service.
It features dual rechargeable batteries for uninterrupted operation. The lock provides low-battery alerts, anti-pry alarms, and automatic lockout after multiple incorrect attempts.
Installation requires a compatible door thickness (60–120mm) and proper alignment. Interlock Singapore offers free professional installation and 2-year onsite warranty coverage.