TTLock Fingerprint Access Control Panel – NFC BLE 5.0 Door Controller
TTLock Fingerprint Access Control Panel – NFC BLE 5.0 Door Controller
TTLock Smart Access Control Panel – Fingerprint, NFC, App & Card Unlock
Take full command of your door access with the Asia-Teco SN503 TTLock Access Control Panel. This advanced smart door controller combines Bluetooth 5.0 BLE, 13.56 MHz NFC card reading, semiconductor fingerprint recognition, capacitive touch keypad, and full TTLock / Sciener app integration into one compact, CE-certified module. Perfect for residential apartments, rental properties, hotels, and small offices looking for a versatile, app-managed entry solution.
Made in Mainland China.
Key Features
- 6-in-1 Unlock Methods: Bluetooth app, password, fingerprint, IC card (Mifare), mechanical key, and remote control
- Bluetooth 5.0 BLE: Reliable low-power wireless connectivity with fast 1.5-second unlock response
- Semiconductor Fingerprint Sensor: Accurate, durable biometric recognition for quick, touch-based entry
- 13.56 MHz NFC Card Support: Compatible with Mifare One IC cards — store up to 1,000 card credentials
- 250 Custom & Permanent Passwords + unlimited dynamic/one-time passwords
- Time-Limited Access Control: Assign expiry dates (start/end time) to any eKey, card, password, or fingerprint
- Remote eKey Distribution: Send, freeze, or revoke electronic keys to guests or tenants instantly from the app
- Unlock Record Monitoring: Full audit log of all access events viewable in the administrator app
- OTA Firmware Upgrades: Expand functionality wirelessly without hardware changes
- Wide Operating Temperature: -20°C to 70°C — suitable for indoor and sheltered outdoor installations
- Low Standby Power: Only 100 µA standby current; powered by 4 standard alkaline batteries (4.5–9V range)
- CE Certified for safety and electromagnetic compliance
Compatible Apps & Platforms
Works seamlessly with TTLock, Sciener, TTRENTING, and TTHOTEL platforms. The app supports Android 4.3+ and iOS 7.0+, and is available in 20+ languages including English, Spanish, French, German, Italian, Russian, Japanese, Korean, Arabic, and more. Cloud infrastructure is hosted on Alibaba Cloud and Amazon Cloud for reliable global connectivity.
Developer-Ready: Open API & SDK
An iOS and Android SDK is provided for custom app development, enabling seamless integration of door lock management into your own business platform. The Open API allows connection with property management systems — perfect for hotels, rental platforms, and smart building operators.
Technical Specifications
| Model | SN503 |
| Bluetooth | BLE 5.0 (Telink TLSR8251 chip) |
| NFC Frequency | 13.56 MHz (Mifare One) |
| Fingerprint Sensor | Semiconductor capacitive |
| Card Capacity | Up to 1,000 IC cards |
| Password Capacity | 250 custom/permanent + unlimited dynamic |
| Unlock Time | 1.5 seconds |
| Power Supply | 4 × alkaline AA batteries (4.5–9V) |
| Standby Current | 100 µA |
| Working Current | < 200 mA |
| Low Voltage Alarm | 4.8V |
| Operating Temperature | -20°C to 70°C |
| Certification | CE |
| Compatible OS | Android 4.3+ / iOS 7.0+ |
| Origin | Mainland China |
Who Is This For?
The SN503 is ideal for property managers, Airbnb/short-term rental hosts, hotel operators, DIY smart home enthusiasts, and security integrators who need a flexible, scalable, and remotely manageable access control system without monthly subscription fees.
For general guidance on electronic access control security best practices, visit the Cybersecurity & Infrastructure Security Agency or review smart home device security tips at FTC.gov – Connected Home Devices.
Frequently Asked Questions
Q: What app do I need to use the TTLock SN503 fingerprint access control panel?
A: The SN503 is compatible with the TTLock, Sciener, TTRENTING, and TTHOTEL apps, available for free on the Apple App Store and Google Play. The app supports Android 4.3 and above, and iOS 7.0 and above. Simply create an account, pair the controller via Bluetooth 5.0, and start managing users, cards, and passwords from your smartphone.
Q: How many users or credentials can the SN503 access control panel store?
A: The SN503 supports up to 1,000 IC card credentials, 250 custom or permanent passwords, and unlimited dynamic (one-time or time-limited) passwords. Fingerprint capacity is managed through the onboard semiconductor sensor. All credentials can be assigned individual start and end times for access-period control.
Q: Does this door controller require a Wi-Fi connection or internet to function?
A: No — the SN503 operates locally via Bluetooth 5.0 BLE for direct smartphone unlocking without an internet connection. Internet connectivity (via your phone's data or Wi-Fi) is only required for remote features such as sending eKeys to other users, viewing access logs remotely, or performing OTA firmware updates.
Q: Can I limit when a guest or tenant can access the door?
A: Yes. Every credential type — app eKey, IC card, password, and fingerprint — can be assigned a specific start date and end date. Access is only granted within that window, making the SN503 perfect for short-term rental management, hotel guest check-in/out automation, and temporary contractor access.
Q: What batteries does the SN503 use and how long do they last?
A: The controller is powered by 4 standard alkaline AA batteries operating in the 4.5–9V range. With an ultra-low standby current of just 100 µA, battery life is excellent for typical residential or rental use. A built-in low voltage alarm triggers at 4.8V to alert you before the batteries are depleted.