1. Introduction
This user manual provides comprehensive instructions for the installation, operation, and maintenance of your COOLOUS Keypad Smart Door Lock. Please read this manual thoroughly before installation and use to ensure proper functionality and security.
2. Product Overview
2.1. Components
The COOLOUS Smart Door Lock system includes the following main components:
- Exterior Handle Assembly (with Keypad and Fingerprint Reader)
- Interior Handle Assembly (with Battery Box)
- Mortise Lock Body
- Strike Plate
- Mounting Hardware (Screws)
- Physical Keys
- Instruction Manual (this document)

Figure 2.1: Key components of the COOLOUS Smart Door Lock, highlighting the fingerprint reader, touch keypad, mechanical key hole, and battery box. The image also illustrates various unlock methods: physical key, smartphone app, touchscreen keypad, and fingerprint.
2.2. Features
Your COOLOUS Smart Door Lock offers advanced features for enhanced security and convenience:
- 4-in-1 Keyless Entry: Unlock using Fingerprint, Passcode, Smartphone App, or Physical Key.
- Remote Code Generation: Generate temporary or permanent passcodes remotely via the app.
- Fingerprint Recognition: Advanced 360° live fingerprint ID for quick and secure access.
- Auto-Lock Function: Automatically locks the door after a set period for added security.
- Low Battery Alarm: Notifies you when batteries are low, ensuring continuous operation.
- USB Back-up: Provides an emergency power option via USB in case of complete battery drain.
- Durable Construction: Features a tempered glass touch panel and stainless steel material for longevity.
- Reversible Handle: Compatible with both left and right-handed doors.

Figure 2.2: Visual representation of the smart lock's core features, including key-free operation, USB backup, fingerprint unlock, silent mode, low battery alarm, and auto-lock.

Figure 2.3: Demonstrates the 360° live fingerprint identification feature, showing a finger being placed on the sensor for unlocking.
3. Setup
3.1. Installation
The COOLOUS Smart Door Lock is designed for easy DIY installation with a Philips screwdriver. No extra drilling or wiring is typically required for standard door setups. Ensure your door thickness and backset are compatible before beginning.
- Remove your existing door hardware.
- Install the mortise lock body into the door edge.
- Attach the exterior handle assembly, ensuring the spindle aligns correctly.
- Install the interior handle assembly, connecting any necessary cables.
- Secure all components with the provided screws.
- Install the strike plate on the door frame.
- Insert 4 AA batteries into the battery box (batteries not included).
- Test the lock's mechanical function with the physical key.

Figure 3.1: Illustrates the ease of installation for the smart door lock, showing it mounted on a door and highlighting its tempered glass touch panel and stainless steel construction.
3.2. App Setup and Initial Pairing
To utilize the smart features, download the COOLOUS app (or compatible smart home app) from your device's app store. Follow the in-app instructions to pair your lock via Bluetooth. For remote control and voice assistant integration (e.g., Alexa), an optional COOLOUS WiFi Gateway (sold separately) is required.

Figure 3.2: The smart door lock displayed with a smartphone showing its companion application, demonstrating the ability to control the lock via the app.
4. Operating Instructions
4.1. Unlocking the Door
- Fingerprint: Place your registered finger on the fingerprint reader. The lock will unlock if the fingerprint is recognized.
- Passcode: Enter your registered passcode on the touch keypad, then press '#'. The lock will unlock if the passcode is correct.
- Smartphone App: Open the COOLOUS app, ensure Bluetooth is enabled (or WiFi Gateway is connected), and tap the unlock button.
- Physical Key: Insert the physical key into the mechanical key hole and turn to unlock.
4.2. Locking the Door
- Auto-Lock: The lock will automatically engage after a preset time (configurable in the app) once the door is closed.
- Manual Lock: From the exterior, press and hold the '#' key on the keypad for 2 seconds. From the interior, turn the thumb-turn knob to the locked position.
4.3. User Management (via App)
The app allows for comprehensive user management:
- Adding Users: Register new fingerprints or create new passcodes for family members or trusted individuals.
- Temporary Passcodes: Generate one-time, periodic, or time-limited passcodes for guests or service providers.
- Access Logs: View real-time access logs to monitor who enters and exits your property.
- Deleting Users: Remove access for individuals as needed.

Figure 4.1: Shows the various remote password options available through the app, including online, one-time, periodic, and cyclic codes, useful for managing access for different users.
5. Maintenance
- Cleaning: Regularly clean the fingerprint reader and touch keypad with a soft, dry cloth to remove dust, dirt, and oil residue. Avoid abrasive cleaners or solvents.
- Battery Replacement: When the low battery alarm sounds, replace all four AA batteries promptly. Use high-quality alkaline batteries for optimal performance.
- Mechanical Check: Periodically check that all screws are tight and the handle operates smoothly. Lubricate moving parts if necessary.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Fingerprint reader not responding or failing to recognize. | Dirty sensor, wet finger, unregistered fingerprint, sensor malfunction. | Clean the sensor. Ensure finger is dry. Re-register fingerprint if needed. Try another unlock method. |
| Keypad not lighting up or responding. | Dead batteries, loose connection. | Replace batteries. Check battery compartment connections. Use USB backup power if completely dead. |
| Lock does not engage/disengage. | Misalignment, obstruction, mechanical issue. | Check door alignment and strike plate. Ensure no obstructions. Re-check installation steps. |
| App connectivity issues. | Bluetooth off, app not updated, lock out of range, WiFi Gateway issue. | Ensure Bluetooth is on. Update app. Move closer to the lock. Check WiFi Gateway connection. |
7. Specifications
| Attribute | Detail |
|---|---|
| Brand | COOLOUS |
| Model Name | 4bb30f49-a7d0-4ca6-9333-2ec2c2521f88 |
| Lock Type | App Lock/Fingerprint Lock/Bluetooth Lock/Keypad Lock |
| Material | Stainless Steel |
| Color | Black |
| Special Features | Fingerprint, Touchscreen, Smart Lock, Waterproof |
| Control Method | App |
| Connectivity Protocol | Bluetooth |
| Power Source | 4 x AA Batteries (not included) |
| Item Weight | 1 Pounds |
| Dimensions (approx.) | 9.69 x 8.54 x 6.18 inches (Package) |

Figure 7.1: Detailed product specifications and dimensions for the smart door lock.
8. Warranty and Support
The COOLOUS Smart Door Lock comes with a 1-year warranty. For any questions, technical assistance, or warranty claims, please contact COOLOUS customer support through the contact information provided with your purchase or via the official COOLOUS website. Your feedback is important to us.
For further assistance, please refer to the official COOLOUS website or contact their customer service directly.





