1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your Yale Smart Digital Door Lock, Julius Model. Please read this manual thoroughly before installation and use to ensure proper function and safety. Retain this manual for future reference.
2. Safety Information
- Read all instructions: Familiarize yourself with the product's features and functions before installation and operation.
- Professional Installation: For optimal performance and security, professional installation is recommended, especially if door modifications are required.
- Battery Safety: Use only specified AA alkaline batteries. Do not mix old and new batteries, or different types of batteries. Replace all batteries at the same time.
- Environmental Conditions: This lock is not resistant to harsh weather conditions such as direct sun and heavy rain. It has an IP54 certification, meaning it is protected from dust and splashing water, but not prolonged exposure to severe elements. Install in a protected area.
- Emergency Access: Always keep the physical keys in a safe, accessible location outside the property for emergency access.
3. Package Contents
Verify that all components are present in the package:
- Yale Smart Digital Door Lock Unit (Julius Model)
- Mounting Hardware (screws, bolts, etc.)
- Installation Manual
- High-Security Keys (2 included)
- AA Alkaline Batteries (4 included)
- Proximity Card

Image 3.1: Yale Smart Digital Door Lock installed on a wooden door, illustrating its compatibility with door thicknesses from 45 to 100 mm. Icons indicate the ability to register 100 fingerprints, 100 codes, card access, and the inclusion of a high-security key. A '1 year warranty' badge is also visible.
4. Setup and Installation
The Yale Julius Smart Digital Door Lock is designed for doors with a thickness between 45 mm and 100 mm. It features an embedded mechanism and requires 4 AA alkaline batteries for operation.
4.1 Pre-Installation Check
- Ensure your door meets the thickness requirements (45-100 mm).
- Verify that the door frame and existing boreholes are compatible with the lock's dimensions.
- Gather necessary tools (screwdriver, drill if new holes are needed, measuring tape).

Image 4.1: The image shows the lock mounted on a door, emphasizing its adjustable design to fit door thicknesses between 45 mm and 100 mm.
4.2 Installation Steps
Refer to the included detailed installation manual for step-by-step instructions. A general overview includes:
- Prepare the door: Mark and drill holes as per the template provided in the installation manual.
- Install the mortise lock into the door edge.
- Mount the exterior unit, ensuring the cable passes through the door.
- Connect the cable to the interior unit.
- Mount the interior unit and secure it with the provided screws.
- Install the 4 AA alkaline batteries into the interior unit's battery compartment.
- Test the lock's basic functions (handle movement, latch operation).

Image 4.2: This image provides an interior perspective of the lock installed on a door, revealing the internal components and the handle from the inside.
5. Operating Instructions
The Yale Julius lock offers multiple ways to access your property, ensuring convenience and security.
5.1 Access Methods
- Fingerprint Recognition: The lock can register up to 100 unique fingerprints. To unlock, place your registered finger on the scanner located on the handle. The backlit keypad will illuminate upon activation.
- User Codes: Program up to 100 distinct user codes. Enter your code on the backlit keypad and confirm.
- Proximity Card: Use the included proximity card for quick access. Present the card to the designated reader area on the lock.
- High-Security Key: In case of power failure or emergency, use one of the two provided high-security physical keys to unlock the door.

Image 5.1: This image highlights the lock's biometric feature, indicating that it can store up to 100 unique fingerprints for access.
5.2 Advanced Features
- Child Lock Mode: The interior handle can be deactivated to prevent accidental opening by children, enhancing safety.
- Double Verification: For enhanced security, enable double verification, requiring two different access methods (e.g., fingerprint and code) to unlock the door.
- Battery Indicator: The lock features a battery indicator to alert you when batteries are running low, allowing for timely replacement.
- Emergency Power Port: A 5V emergency power port is available for temporary power supply using a standard power bank in case of complete battery depletion.
- Integrated Doorbell: The lock includes an integrated doorbell function.
- Open Lock Notifications: Receive notifications when the lock is open (requires compatible smart home integration, details not specified in product information).

Image 5.2: A detailed graphic outlining the lock's capabilities, including fingerprint, code, card, and key access, battery requirements, door thickness compatibility, IP54 rating, emergency power port, child lock, double verification, and notification features.
6. Maintenance
- Battery Replacement: When the battery indicator signals low power, replace all four AA alkaline batteries promptly. Do not wait for complete power depletion.
- Cleaning: Clean the lock's exterior surfaces with a soft, dry cloth. Avoid using abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish and electronic components.
- Fingerprint Sensor: Keep the fingerprint sensor clean and free of dirt or moisture for optimal performance.
- Mechanical Parts: Periodically check the mechanical parts for smooth operation. Do not lubricate with oil-based products unless specifically instructed by Yale.
7. Troubleshooting
- Lock not responding: Check battery level. If batteries are depleted, use the emergency power port or the physical key.
- Fingerprint not recognized: Ensure your finger is clean and dry. Try re-registering your fingerprint if the issue persists.
- Code not working: Verify that the correct code is being entered. Ensure the keypad is clean and responsive.
- Doorbell not working: Check connections if recently installed. Ensure no obstructions.
- Lock feels stiff: Ensure proper installation and alignment. Do not force the handle.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | Julius |
| Manufacturer | ASSA ABLOY |
| Color | Black |
| Finish | Brushed |
| Material | Stainless Steel |
| Lock Type | Biometric |
| Special Features | Fingerprint, Battery Indicator, Backlit Keypad, Integrated Doorbell |
| Access Methods | Fingerprint, User Code, Proximity Card, Physical Key |
| Fingerprint Capacity | Up to 100 |
| User Code Capacity | Up to 100 |
| Power Source | 4 x AA Alkaline Batteries |
| Emergency Power | 5V Micro USB Port |
| Door Thickness Compatibility | 45 mm to 100 mm |
| Product Dimensions (L x W x H) | 110.49 x 35.56 x 63.5 cm |
| Product Weight | 3.92 kg |
| IP Rating | IP54 (Dust protected, splash water resistant) |
9. Warranty and Support
9.1 Warranty Information
The Yale Smart Digital Door Lock, Julius Model, comes with a 1-year limited warranty from the date of purchase. This warranty covers manufacturing defects under normal use. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by improper installation, misuse, unauthorized modifications, or exposure to unsuitable environmental conditions.
9.2 Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact Yale customer support. Refer to the contact information provided on the Yale official website or your product packaging.







