1. Introducere
This user manual provides detailed instructions for the installation, operation, and maintenance of your ARPHA Fingerprint Door Knob D228. Please read this manual thoroughly before installation and use to ensure proper function and safety. Keep this manual for future reference.
2. Produs terminatview
2.1 Caracteristici cheie
- Metode de deblocare 5 în 1: Fingerprint, Bluetooth App Control, Digital Password, One-Time Code, and Mechanical Key.
- Controlul aplicației: Gestionați accesul, view entry logs, set temporary codes, and receive low battery alerts via the Tuya APP (Bluetooth connectivity).
- Parola anti-peeping: Enter random digits before or after your actual password to prevent unauthorized observation.
- Instalare ușoară: Designed for quick setup with a screwdriver, fitting standard door dimensions.
- Putere de urgență: Powered by 4 AA batteries (not included) with a Type-C emergency power port for backup.
- Construcție durabilă: Made from zinc material for reliability.
- Rezistent la intemperii: Clasificare IP54 pentru protecție împotriva prafului și stropilor de apă.
2.2 Diagrama produsului

Imagine: față view of the ARPHA Fingerprint Door Knob D228, showing the fingerprint sensor and numeric keypad.

Imagine: Un pesteview of the ARPHA D228 smart door knob installed on a door, highlighting its keyless entry and app control features.
3. Configurare
3.1 Cerințe de instalare
- Grosimea ușii: 1-3/8 inches to 2-1/8 inches (35 mm - 55 mm).
- Backset Scale Range: 2-3/8 inches (60mm) and 2-1/8 inches (70mm).
- Instrumente necesare: Șurubelniță cu cap Phillips.
3.2 Etapele de instalare
- Prepare the door: Ensure your door meets the specified thickness and backset requirements.
- Instalați zăvorul: Introduceți zăvorul în marginea ușii și fixați-l cu șuruburi.
- Install the exterior assembly: Place the exterior handle assembly through the door, ensuring the spindle aligns with the latch mechanism.
- Install the interior assembly: Connect the interior handle assembly to the exterior assembly, ensuring all cables are properly routed and connected. Secure with screws.
- Insert batteries: Open the battery cover on the interior assembly and insert 4 AA batteries (not included), observing polarity.
- Test the lock: After installation, test the mechanical key and ensure the handle operates smoothly.

Image: The ARPHA D228 door knob demonstrating its ability to automatically identify left or right door handing during installation.
3.3 App Setup (Tuya APP)
- Download the Tuya APP: Caută "Tuya Smart" in your mobile device's app store and download it.
- Create an account: Follow the in-app instructions to register a new account or log in if you already have one.
- Add device: Ensure Bluetooth is enabled on your phone. In the Tuya APP, tap "Add Device" or the "+" icon. The app should automatically detect the ARPHA D228 door knob.
- Pair the device: Follow the on-screen prompts to pair your door knob with the app. This may involve pressing a button on the lock or entering a default code.
- Configure settings: Once paired, you can configure user fingerprints, passwords, temporary codes, and other settings within the app.
4. Instrucțiuni de utilizare
4.1 Metode de deblocare

Image: Visual representation of the five unlocking methods: Fingerprint, App Control, Keypad, and Mechanical Key.
- Deblocarea amprentei digitale:
Place your registered finger on the fingerprint sensor. The lock will unlock if the fingerprint is recognized. The sensor has a 0.3s identification speed and 99.8% accuracy rate.
Image: A finger being placed on the fingerprint sensor of the ARPHA D228 door knob for unlocking.
Imagine: Detaliată view of the fingerprint sensor technology, highlighting its speed and accuracy. - Digital Password Unlock:
Enter your registered password on the keypad. The lock supports an anti-peeping function where you can enter random digits before or after your actual password (e.g., XX + Password + XX).
Image: Illustration of the anti-peeping password feature, showing how random digits can be added around the real password. - App Control Unlock:
Open the Tuya APP on your smartphone and use the one-touch unlock feature. Ensure your phone is within Bluetooth range of the lock.
Image: A smartphone displaying the Tuya app interface with an unlock button for the ARPHA D228 door knob. - One-Time/Temporary Code:
Generate temporary or date-specific access codes through the Tuya APP for guests or service personnel. These codes can be sent remotely.
Image: A person receiving a temporary access code for the ARPHA D228 door knob via their smartphone.
Image: A scenario showing a delivery person and a homeowner communicating about a one-time access code for entry. - Cheie mecanică:
Use the provided physical backup keys to unlock the door in case of battery failure or other emergencies. The keyhole is located at the bottom of the exterior handle.
4.2 Funcțiile aplicației
- Access Entry Logs: View o istorie a cine a intrat și când.
- Blocare automată: Configure the lock to automatically lock after a set period.
- Alerte de baterie scăzută: Primește notificări când nivelul bateriei este scăzut.
- Administrarea utilizatorilor: Add or delete up to 50 different user codes and fingerprints.

Image: An illustration showing various user types (family, roommate, agent, repairman, friend, delivery man) who can be assigned unique access codes.
4.3 Waking Up the Touchscreen
Users can place their finger on the lock to wake up the touchscreen, which takes approximately 1 second.

Image: A hand touching the ARPHA D228 door knob's keypad to activate the screen.
5. Întreținere
5.1 Înlocuirea bateriei
The ARPHA D228 door knob is powered by 4 AA batteries (not included), providing approximately 3-4 months of continuous operation. The lock will emit a low battery sound prompt when power is running low. Replace all four batteries promptly when this alert occurs.

Image: A visual showing the ARPHA D228 door knob indicating a low battery alert and the use of the Type-C emergency charging port.

Image: A visual representation of the low battery alert on the ARPHA D228 door knob, with a smartphone displaying a 20% battery level.
5.2 Alimentare de urgență
In case of complete battery depletion, the lock features a Type-C emergency power port. Connect a portable power bank or a Type-C charger to this port to temporarily power the lock and gain access.

Image: A hand connecting a Type-C cable to the emergency power port on the ARPHA D228 door knob.
5.3 Curățare
Curățați exteriorul încuietorii cu o cârpă moale și uscată. Evitați utilizarea de produse de curățare abrazive, solvenți sau substanțe chimice dure, deoarece acestea pot deteriora finisajul și componentele electronice.
5.4 Rezistența la intemperii
The ARPHA D228 is designed with IP54 weather resistance, meaning it is protected against dust ingress and splashing water from any direction. It can operate in temperatures ranging from -4°F to +140°F.

Image: An illustration highlighting the weather resistance of the ARPHA D228 door knob, showing its ability to withstand various temperatures and water splashes (IP54 rating).
6. Depanare
- Amprentă nerecunoscută: Ensure your finger is clean and dry. Try re-registering your fingerprint if the issue persists. Ensure proper placement on the sensor.
- Încuietoarea nu răspunde: Check battery levels. If batteries are low or depleted, use the Type-C emergency power port or the mechanical key.
- Auto-lock behavior: The auto-lock feature is either on or off. If turned off, the lock will not engage automatically or manually via keypad/fingerprint. If you require the door to remain unlocked for a period, you must keep it physically open or unlock it each time.
- Cannot manually lock from inside: This model does not feature a manual lock button on the interior. Twisting the interior handle will always open the door, regardless of its locked status. To secure the door from the inside, ensure the auto-lock feature is enabled or use the app to lock it.
- Lock relocks too quickly: The lock is designed to relock instantly (1-2 seconds) after unlocking. There is no option to extend this time. If you need to make multiple trips, you must either keep the door physically open or unlock it each time.
- Tastatura nu răspunde: Ensure the touchscreen is awake by placing a finger on it. If still unresponsive, check battery levels.
7. Specificații
| Caracteristică | Caietul de sarcini |
|---|---|
| Marca | ARPHA |
| Numele modelului | D228 |
| Tip blocare | Biometric, Deadbolt |
| Metode de deblocare | Fingerprint, Bluetooth App, Digital Password, One-Time Code, Mechanical Key |
| Caracteristici speciale | Anti-Peeping Password, Auto-Lock, Fingerprint, One-Touch Lock, Touchscreen |
| Protocol de conectivitate | Bluetooth |
| Material | Zinc |
| Dimensiuni articol (L x l x H) | 5 x 2.5 x 2.5 inci |
| Greutatea articolului | 2.03 lire sterline |
| Sursa de alimentare | 4 baterii AA (nu sunt incluse) |
| Putere de urgență | Port de tip C |
| Gama de grosime a ușii | 1-3/8 inches to 2-1/8 inches (35 mm - 55 mm) |
| Backset Range | 2-3/8 inches (60mm) and 2-1/8 inches (70mm) |
| Rezistență la intemperii | IP54 |
8. Garanție și asistență
The ARPHA Fingerprint Door Knob D228 is backed by an 18 luni garantie. ARPHA also provides suport tehnic pe viață. Our customer service team is available 24/7 to assist you with any questions or issues you may encounter.
For support, please refer to the contact information provided with your product packaging or visit the official ARPHA website-ul.





