1. Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of your FITNATE Keypad Door Knob. Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Setup and Installation
Proper installation is crucial for the optimal performance of your keypad door knob. Follow these steps carefully.
2.1. Door Preparation
Ensure your door meets the following specifications for installation:
- Door Thickness: 1.26 inches to 1.89 inches (32mm to 48mm)
- Door Hole Diameter: 2-1/8 inches (54mm)

2.2. Component Overview
Familiarize yourself with the various components of your FITNATE Keypad Door Knob before beginning installation.

2.3. Installation Steps
For a visual guide on the installation process, please refer to the official installation videos below. These videos demonstrate the step-by-step procedure for setting up your new keypad door knob.
Video 1: FITNATE Keypad DoorKnob: Pre-use Tips. This video provides essential tips and an overview of the installation process for the keypad door knob.
Video 2: FITNATE Keypad Door Knob Installation. A comprehensive guide demonstrating the full installation process of the FITNATE Keypad Door Knob.
2.4. Initial Programming
After installation, the lock will typically have a default password (e.g., 0123#). Use this to verify the lock's functionality. Refer to the programming section for instructions on changing the master code and adding user codes.
3. Operating Instructions
Your FITNATE Keypad Door Knob offers multiple convenient ways to secure and access your space.
3.1. Unlocking Methods
- Password Unlocking: Enter your programmed user code followed by the '#' key. The lock will disengage, allowing you to open the door.
- Key Unlocking: In case of battery depletion or preference, use the provided spare keys to manually unlock the door.

3.2. Keypad Features
- Backlit Keypad: The keypad illuminates, allowing for clear visibility and operation in dark environments.
- Anti-Peep Door Code: To enhance security, you can enter random digits before or after your actual password. The lock will still recognize the correct sequence within the longer entry.

3.3. Modes of Operation
- Passage Mode: This mode allows the door to remain unlocked for free entry and exit without requiring a code.
- Silent Mode: For quiet operation, the lock's sound can be muted.
- Auto-Lock Function: The electronic door will automatically lock behind you after a set period (e.g., 3 seconds) after opening.


3.4. Status Indicator Light and Sound Indications
The lock provides audio and visual feedback for various statuses:
- Passage Mode: A long beep after any key press indicates the lock is in Passage Mode.
- Unlock Success: One long beep confirms successful unlocking.
- Low Battery: Seven rapid beeps after unlocking indicate that the batteries are low and need replacement.
4. Maintenance
Regular maintenance ensures the longevity and reliable operation of your keypad door knob.
4.1. Battery Replacement
The lock is powered by 4 pieces of 1.5V AA alkaline batteries. When the low battery indicator sounds, replace all four batteries promptly to avoid loss of function.
4.2. Emergency Power and Backup
- Emergency USB Power: If batteries completely deplete, an emergency USB port is available to provide temporary power for unlocking.
- Backup Keys: Always keep the provided spare keys in a safe, accessible location outside the locked area for manual override.

4.3. Cleaning and Care
The lock is constructed from durable metal material with a waterproof and rust-resistant coating. Clean the surface with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the finish or electronic components.
5. Troubleshooting
If you encounter issues with your keypad door knob, refer to the following common problems and solutions:
- Lock not responding: Check battery levels. If the low battery alarm has sounded, replace batteries immediately. Use emergency USB power if completely drained.
- Incorrect code entry: Ensure you are entering the correct password. Utilize the anti-peep function if concerned about others observing your entry.
- Door not locking/unlocking properly: Verify that the latch is installed correctly and moves freely. Ensure the door frame strike plate is aligned.
- Keypad not lighting up: This may indicate low battery or a setting change. Check battery levels first.
If problems persist after attempting these solutions, please contact customer support.
6. Specifications
| Feature | Specification |
|---|---|
| Brand | FITNATE |
| Model Number | HS0335KSB |
| Lock Type | Keypad |
| Special Feature | Back-Lit Keypad |
| Material | Zinc |
| Item Dimensions (L x W x H) | 20.19 x 8.2 x 8.2 inches |
| Item Weight | 0.4 Pounds |
| Recommended Uses | Home, bedroom, hotel, and office security |
| Included Components | Key |
| Controller Type | Hand Control, Mechanical knob, Push Button |
| Control Method | Touch |
| Connectivity Protocol | Wi-Fi |
| Color | Silver |
| Shape | Round |
7. Warranty and Support
7.1. Warranty Information
Specific warranty details for the FITNATE Keypad Door Knob are not provided in this manual. Please refer to the product packaging or the manufacturer's official website for the most current warranty information.
7.2. Customer Support
For technical assistance, troubleshooting, or any questions regarding your FITNATE Keypad Door Knob, please contact FITNATE customer support through their official channels. Contact information can typically be found on the product packaging or the brand's website.