Coupon Code Alert! You can now buy WELOCK PCB51 Bluetooth Smart Lock with keypad from Welock.com with €50 off, 2-Year warranty & fast shipping from European Warehouse if you’ll use our coupon code: VD50. Hurry up, limited time offer!
Meet WELOCK PCB51 Bluetooth Smart Lock with keypad
In a world where convenience and security are becoming inseparable, the WELOCK PCB51 Bluetooth Smart Lock stands out as an advanced, well-rounded solution designed to meet the needs of modern homeowners, Airbnb hosts, and property managers alike. With its 5-in-1 unlocking system, solid build quality, smart integration options, and effortless DIY installation, this smart lock exemplifies what it means to combine security with simplicity.
One of the standout features of the WELOCK PCB51 is its versatile unlocking system, giving users five different ways to access their property:
– Keypad code (up to 10 PIN codes including one admin)
– RFID card (up to 20 cards per lock, 3 included)
– Smartphone app (Bluetooth control via WELOCK app)
– Alexa voice command (via separately sold WIFIBOX3 gateway)
– WiFi remote unlock (also via WIFIBOX3)
This multi-access approach makes it perfect for families, guests, or short-term rental management. Whether you’re unlocking your front door from the driveway, granting access to a guest while abroad, or letting in a cleaner with a one-time code, the PCB51 offers full flexibility and peace of mind. Unlike many competitors, WELOCK offers all of these services with no monthly fees, making it a cost-effective solution for smart home enthusiasts.
Once paired with the optional WIFIBOX3 WiFi gateway, the WELOCK PCB51 transforms from a smart lock to a fully connected security hub. Through the WELOCK app (available on iOS and Android), users can:
– Lock/unlock the door remotely
– Receive real-time notifications (including low battery alerts)
– Track access history with full timestamps
– Share and revoke temporary codes on the fly
The PCB51 is more than just a lock—it’s a versatile management tool. It allows for up to 10 PIN codes directly on the lock, and more through the app, letting you easily manage access for family, tenants, or cleaning services. Temporary access codes are perfect for Airbnb check-ins, while RFID cards allow fast, touch-free entry for kids or elderly users. Add in the auto-lock feature (configurable between 5–14 seconds) and a three-minute lockout after 5 failed attempts, and you’ve got a lock that actively defends your space.
WELOCK gets major points for ease of installation. Designed for Euro profile cylinder doors (30–70mm thick), this lock replaces your existing cylinder with no additional drilling or wiring. Most users can install the PCB51 in under 10 minutes with nothing more than a screwdriver. The adjustable cylinder (27.5–42.5mm front, 27.5–47.5mm rear) offers broad compatibility across various door types. It’s a plug-and-play experience that’s refreshingly simple.
The smart lock runs on 3 AAA batteries, offering up to 12 months of operation depending on usage. When battery power drops below 20%, the lock triggers a low battery warning via the app. And if you ever forget to replace the batteries in time, there’s a USB emergency unlock feature—just plug in an external power bank and regain access through the app. With an IP65 waterproof rating and operating range from -25°C to 60°C, the PCB51 is built to withstand harsh climates, making it suitable for both indoor and outdoor use. The lock’s zinc alloy and stainless-steel construction, along with anti-pick, anti-bump, and anti-drill protection, reinforces its commitment to top-tier security.
When paired with the WIFIBOX3, the PCB51 unlocks a whole new level of convenience. It becomes Alexa-compatible, allowing you to unlock the door with simple voice commands—a great addition for smart home setups or accessibility needs. The ability to view detailed lock usage history, share access remotely, and receive real-time updates solidifies this product’s role not just as a lock, but as a security and property management tool.
The WELOCK PCB51 Bluetooth Smart Lock is a well-rounded, thoughtfully designed solution for anyone seeking advanced access control without the complexity or cost of professional installation. Its multiple unlock methods, robust smart features, durable build, and DIY-friendly design make it one of the most user-focused smart locks on the market today. Whether you’re securing your family home, managing short-term rental properties, or upgrading to a smarter lifestyle, the PCB51 delivers reliability, functionality, and peace of mind—without compromise..
Verdict: ⭐⭐⭐⭐⭐ (5/5)
Security – Convenience – Design – Smart Control – All in One
WELOCK PCB51 Bluetooth Smart Lock Main Features
– 5 in 1 electronic door lock: 1. password; 2. RFID card — package contains 3 cards; 3. Bluetooth — unlock with mobile app; 4. WiFi remote unlock (additional WiFi box 3 required); 5. USB backup unlock (no charging function)
– Security Door Locks Our door locks are equipped with the latest high security anti sniffing technology, which allows you to enter random numbers before and after the right combination to confuse the judgment
– App intelligent control: electric door lock can be controlled in the WeLock app for iOS and Android, you can do app to open the door; add a smart card, add app users; see release history and others
– Easy installation: smart door lock is suitable for almost all door locks that meet the EU standard size, suitable for door thickness 30-70 mm. Installation requires only a screwdriver, replacing the original lock cylinder
– Low battery alarm: Welock electronic lock will warn you when the current level of the door lock is electronically lower than 20%, you can also check the current level in the app, so you can replace the battery in time
– Practical Smart Lock: 10 codes can be added directly to the lock (1 admin code, 9 user codes) and more can be created via the app. 1 card can be added to multiple locks, 1 lock up to 20 cards
WELOCK PCB51 Bluetooth Smart Lock Highlights
5 Easy Ways to Unlock
Easy DIY installation
Adjustable cylinder length
App control
Security and Durability
USB backup to unlock
WELOCK PCB51 Bluetooth Smart Lock best using scenarios
– Primary Entrance: The PCB51 is ideal for main entrances, providing easy and quick access for family members.
– Interior Rooms: It can be used for securing specific rooms like home offices, nurseries, or master bedrooms where extra security or privacy is desired.
– Airbnb or Vacation Rentals: Hosts can use the lock to manage access without the need for physical keys. Code entry options make it convenient for guests while maintaining security.
– Long-Term Rentals: Property owners can easily change access codes or reset between tenants, ensuring a smooth transition and enhanced security.
– Private Offices: Individual offices within a co-working space can benefit from the PCB51, providing users with secure access that doesn’t require traditional keys.
– Meeting Rooms: The lock can secure meeting rooms, allowing only those who have booked the room to enter.
– Shared Facilities: Install the lock on shared amenities like gyms, lounges, or storage areas within a building.
– Classrooms and Laboratories: The lock can be used to control access to classrooms, labs, or storage rooms, ensuring that only authorized students and staff can enter.
– Dormitory Rooms: In dorms, it provides students with a secure and convenient way to access their rooms without worrying about losing keys.
– Patient Rooms: It can secure rooms where patient privacy is paramount, ensuring that only authorized staff and family members have access.
– Supply Rooms: Secure medical supply rooms to prevent unauthorized access to potentially sensitive or dangerous materials.
– Guest Rooms: The lock is ideal for hotel guest rooms, where guests can use codes for access, offering a modern, keyless entry experience.
– Restricted Areas: Use the lock for staff-only areas to ensure that only authorized personnel can enter.
– Remote Management: For owners who rent out or have infrequent visits to their vacation homes, the ability to manage the lock remotely and provide temporary access codes is highly beneficial.
– Guest Entry: The lock allows owners to provide temporary access for guests or service personnel without needing to be physically present.
– Data Centers: The lock can secure entrances to data centers or server rooms where only authorized personnel should have access.
– Financial Institutions: Use the lock in banks or financial institutions to secure rooms with sensitive information or valuables.
How to add RFID card to welock smart lock?
Step 1: Download Welock app. Scan the QR code below to download the Welock app.
Step2: Bind your phone and welock smart lock. Turn on Bluetooth. Open the Welock app, click the ➕ button in the upper right corner, select Add Welock, then scan the QR code on the lock and follow the instructions to bind your smart lock.
Step3: Set the time of RFID card. Click on your bound welock smart lock and then click on the Add Card button. Set the time you want to add the card to be valid, you can set it to be valid all the time, or valid for a period of time.
Step4: Scan RFID card. Scan RFID card and wait for successful addition
WeLock Mobile application
– You can connect your lock by bluetooth after you download the App.
– Including a variety of unlock ways, through the Bluetooth connection lock, multi-level authorization; button to unlock, shake -shake unlock, graphics unlock, one button unlock.
– Authorization management, equipment management, equipment transfer.
Download WeLock Mobile application for free from Google Play Store or from App Store.
WELOCK PCB51 Bluetooth Smart Lock Specs
Brand: WELOCK
Model: PCB51 / PCB10EBL51
Type: Smart Door Lock
Ways to unlock: Passcode / RFID Card / Bluetooth / WiFi remote unlock / USB backup unlock
Item dimensions L x W x H: 18.5 x 4 x 4.5 cm
Pressing cycle times: 100.000 times
Weight: 480 g
Material: Plastic, Zinc & Stainless Steel
Battery Type: 3 x AAA Battery
Battery Input: 3.6V – 4.5V
Battery: Replaceable
Battery life: 10-12 months
Adjustment range: 55mm to 95mm
Colour: Silver
Water resistance: IP65
ASIN: B0C9HWGNHK
Package List
1 x WELOCK PCB51 Bluetooth Smart Lock with keypad
3 x RFID card
1 x Lock cylinder extension
1 x Cross screwdriver
1 x Philips screwdriver
1 x Allen key
2 x Fixing screw for battery cover
2 x Front handling screw
2 x Silicone Plug
1 x Thimble
1 x Quick start guide (5 languages)
1 x Packaging Box
Remember, you can now buy WELOCK PCB51 Bluetooth Smart Lock with keypad from Welock.com with €50 off, 2-Year warranty & fast shipping from European Warehouse if you’ll use our coupon code: VD50. Hurry up, limited time offer!
Unboxing Photo Album with Hi-Rez images here. Read more about Welock products here.
About WELOCK. WELOCK is a leading smart home access solution provider that focuses on smart door lock development, manufacturing, and marketing for over 10 years. In 2013,we have established our brand WELOCK, dedicated to popularizing high-quality smart home products and providing people with a safe and convenient life experience. WELOCK takes smart lock cylinders and fingerprint lock cylinders as its leading products, and has become the first company in the world to implement biometric fingerprint technology in lock cylinders. We’ve established partnerships in Europe, North America, Middle East, and Australia to provide users with the most localized service and support.
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