WELOCK U81 Smart Lock – Electronic Door Lock Cylinder
Estimated price: €249.00👍 – check for current deal
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Features & Benefits
- 6-in-1 access methods: fingerprint, PIN code, RFID card, Bluetooth app, mechanical key, and Alexa (with WiFi bridge)
- Supports up to 200 PIN codes, 100 fingerprints, and 199 RFID cards. Can manage users and administrators flexibly.
- Auto-locking feature (custom delay 7–14 seconds) after door closure
- Designed for standard Euro profile cylinders: fits door thicknesses of ~ 60-115 mm and narrow edges ≥ 25 mm
- Powered by 4 × AAA batteries with up to ~12 months battery life; low battery alert at ~4.5V
- Stainless steel + PC plastic construction; tested for high durability cycles
- DIY installation — no wiring; installation in about 15 minutes by screwing into existing cylinder slot
- Remote control and smart home integration possible with the optional WiFiBox3 bridge: control via WELOCK app, Alexa, etc.
- Anti-peep PIN entry (random digits before/after correct code) for added privacy protection :
How to Use / Setup
1. Remove existing cylinder & hardware
2. Insert the U81 cylinder and secure it with the fixing screw
3. Adjust the cam to your door thickness and tighten
4. Pair via Bluetooth using the WELOCK App; register fingerprints, PINs, cards
5. Optionally connect WiFiBox3 to enable remote control and voice assistant features
Technical Specifications
- Product model: U81
- Supported credentials: 200 PIN, 100 fingerprints, 199 RFID cards
- Warranty: base 3 years, with possibility to extend via purchase
- Operating temperatures: approx. –25 °C to +60 °C
- Encryption & security: bank-grade encryption, anti-peep code, secure firmware updates (as claimed)
Why Choose the U81?
The WELOCK U81 delivers excellent flexibility for modern smart access control — combining multiple unlocking modes, DIY installation, strong security protections, and optional integration into your smart home ecosystem. Ideal for homeowners, vacation rentals, offices, or any place where keyless, secure access is desired.