Smart Door Lock QL-S811

The QL-S811 smart lock system is a premium smart door lock designed for homes, villas, hotels, and offices. It provides high security and convenient usage thanks to Tuya and TTlock app support, Wi-Fi and Bluetooth connectivity, and unlocking options via fingerprint, card, password, and key. Its body, made of durable aluminum alloy and tempered glass, offers long-lasting and reliable use. ⚙️ Technical Specifications: • Country of origin: China • Model: QL-S811 • Material: Aluminum alloy + tempered glass • Locking system: Fingerprint / password / RFID (IC) card / Tuya mobile app / TTlock mobile app / Wi-Fi / Bluetooth / mechanical key / USB emergency power input • Color: Black, red bronze, silver • Weight: 2.5 kg • Door thickness compatibility: 38–55 mm • Door type: Wooden, steel, stainless steel, aluminum, and copper doors • Lock type: Smart electronic door lock (Smart Lock) • Identification: Fingerprint, RFID (IC) card, PIN code, Tuya app, TTlock app, Bluetooth, Wi-Fi, mechanical key • Fingerprint capacity: 100–120 users • Card capacity: 200 IC cards • User capacity: 100 users (up to 200 users maximum) • Fingerprint recognition time: <1 second • Card reading distance: 3–5 cm • Power supply: DC 6V (4 × AA alkaline batteries) • Battery life: Approximately 10–12 months • Emergency power input: USB • Operating temperature: -20°C ~ +60°C • Operating humidity: 20% – 90% • Connectivity: Wi-Fi, Bluetooth, Tuya Smart, TTlock ✅ Standard Features: • Management via Tuya and TTlock apps, Wi-Fi and Bluetooth connectivity, cloud storage support, Class B security cylinder, low battery warning, auto-locking, access history, remote control, emergency power supply via USB, multi-user management. • Certificates: CE, RoHS • Installation type: Mortise (5050 × 22 × 160 mm) • Warranty: 1 year 🚀 Advantages: • 🚚 Fast delivery • 🛠️ Professional installation within 1 day • 🔐 Secure access via fingerprint, password, RFID card, Tuya, TTlock, Wi-Fi, Bluetooth, and mechanical key • 🏠 Premium solution for homes, villas, hotels, and offices • ⚡ Less than 1-second fingerprint recognition and 200 IC card capacity • 📱 Remote control via Tuya Smart and TTlock apps • 🌐 Wi-Fi and Bluetooth connectivity, access history, and auto-locking • 🔋 10–12 months battery life, USB emergency power input, and battery warning • 🛡️ Premium body made of aluminum alloy and tempered glass • 🌡️ Stable operation from -20°C to +60°C • ⭐ 1-year official warranty • ✅ Original and high-quality product with CE and RoHS certificates • 👍 Choice of thousands of satisfied customers 💰 Other smart door locks: • Smart Lock QL-S607: ₼200 • Smart Lock QL-S811: ₼300 • Smart Lock S819-2: ₼300 • Smart Lock QL-S802: ₼450 • Smart Lock S819 2Max: ₼480 • Smart Lock QL-S802 Pro: ₼480 • Smart Lock QL-S608: ₼500 • Smart Lock QL-S611: ₼620 • Smart Lock QL-S958 Max: ₼650 • Smart Lock QL-S940 Max Face: ₼700 🏢 About our company: Central Home Security Systems. Central Home provides reliable security solutions for homes, offices, and commercial facilities.