Thermal Break Aluminum Door Lock: Slim, Automatic and Built for Modern Frames
Thermal break aluminum doors have narrow profiles and strict mortise requirements — most smart locks do not fit. The SK-H3 thermal break aluminum door lock is a slim automatic lock made for them, unlocking with face, fingerprint, PIN, card, key or the Tuya / TTLock App.
Six Ways In, One Touch to Open
Face recognition, fingerprint, PIN, card, mechanical key and remote unlock cover every member of the household — kids, parents and guests each get the method that suits them best.
Face Recognition That Works in the Dark
Structured-light scanning reads your face in under 0.5 seconds across a 1.2-2.0m height range. IR night vision keeps face unlock working after sunset, so there is nothing to touch when your hands are full.
Fits the Mortise Your Door Already Has
Choose from 85mm or 92mm mortises — 2585, 2885, 3085, 3585, 4085, 4585, 3092, 3592 or 4092 — with double hook, regular or multi-point lock bodies. The slim 23mm body and 38.5mm panel sit flush on narrow aluminum frames.
Security and Power You Can Rely On
Anti-tamper alarms, incorrect-entry alarms and low-battery alerts are built in. The 3000mAh lithium battery runs for months with Type-C charging, and the lock keeps working from -35°C to 70°C.
Where the SK-H3 Works Best
- Thermal break aluminum doors – designed for narrow profiles.
- UPVC and modern frames – 85/92mm mortise options.
- Outdoor entrances – IP66 waterproof, extreme temperatures.
- Families of all ages – face unlock for hands-free entry.
Getting Started
As a smart lock OEM/ODM manufacturer, we supply the SK-H3 with custom logo, packaging and finish options (black, white, silver or gold) for distributors and retailers. Contact us for samples, bulk pricing or OEM/ODM customization.