Smart locks are tech-integrated devices that replace traditional key-only locks with multiple unlocking methods (biometrics, APP, etc.). They offer security features (alarms, anti-interference), smart management (remote control), and emergency backups. Used in homes, rentals, offices, and hospitals, their main role is to boost access safety, convenience, and efficiency—making them essential for smart living.
- Diversified unlocking: Biometrics (fingerprint), electronic credentials (passwords, APP remote unlock, NFC cards), and emergency mechanical keyholes.
- Residential use: Solves key-related issues (forgetting/losing keys) and secures the elderly/children via remote management.
- Rental market: Landlords manage tenants with temporary passwords (no in-person key handover)
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| Product Name | Fingerprint Smart Lock |
| Door Type | Wood door, Steel door, Stainless Steel door, Aluminum door |
| Place of Origin | China,Guangdong |
| Brand Name | Qleung |
| Model Number | S851 |
| Network | wifi/ble |
| Material | Aluminum Alloy |
| Color | Black |
| Unlock way | Tuya wifi app/TTlock app&Password & Fingerprint & card & key &USB port |
| Door thickness | 40-120mm |
| Weight | 2.5kg/pcs |
| Standard Mortise | 5050*22*160mm (Other sizes can be negotiated) |
| Application | Apartment, VILLA, Hotel, Office |
| Battery | 4 AA Alkaline Battery |
| Warranty | 2 Years |
| Certification | CE/Rohs |
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Dongguan Qleung Electronic Co., Ltd.
Dongguan QLeung electronic technology co.,limited, we are founded
in 2013 and registered in 2015, specializes in R&D, manufacture
and Trading of Smart locks, Doorplate switch, Smart switch, so on
Currently the company has over 50 staff and covers an area of 4000
square meters.Qlueng's monthly productivity reaches 10000 sets.
We owns a strong R&D team and professional technology
development department, By virtue of many excellent employees and
management team, it is widely recognized in this industry.
Qlueng lays much great importance to quality and concentrates on
details. No accepting defects, no producing rejects and no
delivering failure is its quality policy. Various testing equipment
is continuously perfected in its workshop to strictly inspect
ongoing production and other processes.
Besides, we are ceaselessly improving its after sale service; all
products have 2-year warranty period.
Great production capability, high item quality assurance and
excellent service are basic guarantee to our development. We warmly
welcome customers home and abroad to our company for a visit and
discuss business, are willing to conduct OEM and ODM cooperation
with you。
