Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Eseesmart Smart Front Door Lock Set (Model YL-MD168). This advanced keyless entry system offers multiple unlocking methods including Bluetooth APP control, anti-peep passcode, RFID cards, and physical keys. It features auto-lock functionality, passage mode, and robust security features designed for durability and convenience. Please read this manual thoroughly before installation and use to ensure proper function and safety.
Package Contents
Before beginning installation, verify that all components are present in the package.
- Front Plate * 1
- Base Plate Assembly * 1
- Latch * 1
- Bolt * 1
- Tube * 1
- Spring * 1
- Decorative Cover * 1
- Battery Cover * 1
- Screw Pack (includes Self-tapping screws * 4, M4 screw (short) * 3, M4 screw (long) * 2, M5 screw * 1)
- Backup Key * 2

Image: Exploded view of the Eseesmart Smart Lock components, showing the front plate, base plate, latch, bolt, tube, spring, decorative cover, battery cover, various screws, and backup keys.
Setup and Installation
The Eseesmart Smart Front Door Lock Set is designed for easy installation, typically requiring no additional drilling for standard door setups. It replaces existing locks and is compatible with US standard left and right-handed doors.
1. Door Compatibility Check
Ensure your door meets the following specifications:
- Door Thickness: 1.49 - 1.97 inches (38 - 50 mm)
- Backset: 2-3/8 inches (60 mm) or 2-3/4 inches (70 mm)
- Hole Diameter: Greater than 1-17/20 inches (47 mm)
- Distance between bore holes: 5-1/2 inches (140 mm) apart.

Image: Diagram illustrating door thickness, backset, hole diameter, and distance between bore holes for proper installation of the Eseesmart Smart Lock.

Image: Visual guide for checking door dimensions and compatibility with the Eseesmart Smart Lock, showing measurements for left-handed and right-handed doors.
2. Installation Steps
Follow the detailed instructions provided in the included manual for step-by-step installation. A video guide is also available for visual assistance.
Important: Ensure the bore holes are exactly 5-1/2 inches (140mm) apart for stable installation.
3. Battery Installation
The lock requires 4 AAA batteries (not included). Install them into the battery compartment located on the interior side of the lock.

Image: View of the Eseesmart Smart Lock's interior, showing the battery compartment designed for 4 AAA batteries.
Operating Instructions
1. Unlocking Methods
Your Eseesmart Smart Lock offers multiple convenient ways to unlock your door:
- Bluetooth APP Control: Use the dedicated mobile application to unlock your door remotely.
- Keypad Passcode: Enter your personalized code on the anti-peep OLED keypad.
- RFID Cards: Tap a registered RFID card to the lock for quick access.
- Physical Key: Use the provided backup keys for traditional unlocking.

Image: Illustration of various unlocking methods including Tuya APP, keypad with anti-peeping password, RFID cards, one-time codes, and backup keys.
2. Keypad Passcode Entry (Anti-Peep Feature)
To enhance security, the keypad supports an anti-peep function. You can enter random digits before and after your actual passcode. The lock will recognize the correct sequence within the longer string of numbers.

Image: Demonstrates the anti-peep password feature, where random digits can be entered before and after the actual password to prevent onlookers from discerning the code.
3. Mobile Application Control
The Eseesmart app allows you to manage your lock from your smartphone. Features include:
- Generating various types of codes (one-time, permanent, timed, recurring, custom) for guests.
- Assigning up to 100 guest passcodes and 100 IC cards.
- Setting Auto Lock Timer or Passage Mode.
- Real-time push notifications and activity logs.

Image: Screenshot of the Eseesmart mobile application interface, showing options for creating various types of PIN codes such as one-time, permanent, timed, custom, recurring, and erase codes.

Image: A user interacting with the Eseesmart app, highlighting features like app control, real-time push notifications, activity logs, and user management.
4. Auto Lock and Passage Mode
- Auto Lock: The lock can be configured to automatically lock after a set period (5-60 seconds) once the door is closed. This feature can be customized via the app.
- Passage Mode: When Passage Mode is enabled, the auto-lock function is temporarily turned off, allowing the door to remain unlocked for continuous access. This is useful for gatherings or when frequent entry/exit is needed.

Image: Depicts the Auto Lock feature, showing the lock automatically engaging after a set time, and the Passage Mode, where the lock remains unlocked for convenience during social events.

Image: A woman with a baby bag demonstrating the auto-lock feature, where the door automatically locks after a customizable duration of 5-60 seconds.

Image: A group of people enjoying a gathering, illustrating the Passage Mode where the lock remains unlocked, allowing free entry and exit without needing to re-enter codes.
5. Adjustable Volume
The lock's operational sounds can be adjusted to Mute, Low, Medium, or High volume settings.

Image: Shows the adjustable volume settings for the smart lock, including mute, low, medium, and high volume options, with a sleeping child in the background to emphasize quiet operation.
Maintenance
1. Battery Management
- Low Battery Alert: The lock will provide clear alerts when the battery level drops below 20%. Replace batteries promptly to ensure continuous operation.
- Emergency Charge: In case of complete battery depletion, the lock features a USB-C port for emergency power, allowing you to temporarily power the lock and gain entry.
- Backup Key: Always keep a physical backup key in a secure location outside your home for emergency access.

Image: Displays the battery compartment, the USB-C port for emergent charging, a real-time battery status indicator, and the option to unlock with a backup physical key.
2. Cleaning
Wipe the lock's exterior with a soft, damp cloth. Avoid using abrasive cleaners or solvents, as these can damage the finish and electronic components.
Troubleshooting
If you encounter issues with your Eseesmart Smart Lock, refer to the following common solutions:
- Lock not responding: Check battery levels. If low, replace batteries or use the emergency USB-C charge port.
- Keypad not lighting up: Ensure batteries are correctly installed and charged.
- Difficulty with app connection: Ensure Bluetooth is enabled on your device and you are within range of the lock. Restart the app or your phone if necessary.
- Anti-tamper alarm triggered: The lock features an anti-saw tongue with a built-in hidden anti-saw pin and an alarm system. If the prevent-pry setting is enabled and tampering is detected, the system will lock and alarm for 180 seconds.

Image: Illustrates the anti-saw tongue with a hidden anti-saw pin and the anti-tamper alarm system, which triggers a 180-second alarm if tampering is detected.

Image: A person sleeping peacefully, while the image highlights the anti-saw tongue with a built-in hidden anti-saw pin and an alarm system that activates for 180 seconds if tampering is detected.
Specifications
| Brand | Eseesmart |
| Model Number | YL-MD168 |
| Material | Heavy Duty Alloy |
| Color | Black |
| Style | Smart Fashion |
| Lock Type | Deadbolt Lock, Keyless Entry Door Lock with Handle, Keypad Lock |
| Product Dimensions | 3.2 x 1.39 x 20 inches |
| Item Weight | 11 pounds |
| Power Source | 4 AAA Batteries (not included) |
| Special Features | App Control, Anti-Peep Passcode, RFID Cards Unlock, Auto Lock, One-Touch Lock, Passage Mode, Physical Key, Emergent Charge (USB-C), Low Battery Alert, Anti-Saw Tongue, Alarm System, Tempered Glass Keypad, Integrated Design |
| Durability | Resistant to -31°F to 158°F, IP65 Waterproof, Shock Resistant, 168H Salt Spray & Humidity Test, 150,000 Usage Test |

Image: Close-up of the Eseesmart Smart Lock keypad, highlighting its robust construction and features like 2173N appearance pressure resistance, temperature resistance (-31°F to 158°F), 168H salt spray & humidity test, 150,000 usage test, and IP65 waterproof rating.

Image: The Eseesmart Smart Lock installed on a door during snowy weather, emphasizing its resistance to temperatures from -31°F to 158°F and its IP65 waterproof rating.
Warranty and Support
Eseesmart provides a 12-month replacement or refund policy for your product. Additionally, LIFETIME troubleshooting and customer service support are available.
For any queries, technical assistance, or warranty claims, please contact Eseesmart customer service.
Contact Information: Refer to the Eseesmart website or your purchase documentation for the most current contact details.