READER & STANDALONE
PRODUCT TYPE
Fingerprint reader
SPECIFICATION
48(W)x138(H)x38(D)mm
BROCHURE
KJ-3400 Series
- Proven Excellence
- Affordable
- Built to Perform
- Compact Standalone
- Rugged, IP65
- Easy Installation
- Free Software & SDK

1. Proven Excellence – Trusted Over 20 Years
With a 20-year track record of reliability, the KJ-3400 has been deployed in over 120 countries and tested under various real-world conditions. Its consistent and precise biometric performance makes it a trusted choice for long-term deployments.
2. Excellent Price-Performance
The KJ-3400 delivers exceptional performance at affordable price making the smart choice for businesses looking to upgrade the access control without breaking the budget. Proven quality trusted in over 120 countries, now within easy reach.
3. Compact Size – Big Performance, Small Footprint
Designed with a sleek and compact body, the KJ-3400 easily fits into any environment, from modern offices to industrial facilities. Its slim profile ensures effortless installation even in tight spaces.
4. Rugged – Built Tough for Environment Challenges
IP65-rated for water and dust resistance, the KJ-3400 is engineered to endure harsh conditions. Whether indoors or outdoors, it stands strong against the elements to protect your security needs.
5. Standalone – Easy to Install, Easier to Use
Designed for seamless setup as standalone, the KJ-3400 minimizes installation time and cost. Its intuitive structure allows even first-time installers to complete the job quickly and confidently.
6. Management Software at No Extra Cost
Manage users, monitor access logs, and configure devices effortlessly with our included free management software. Streamline operations and enhance control without paying extra for essential features.
7. Free SDK – Flexibility in Your Hands
Integrate the KJ-3400 into your existing systems or develop customized solutions with our free SDK (Software Development Kit). Enjoy full flexibility to tailor the device to meet your specific project requirements.

DATASHEET
Category | KJ3400C CARD | KJ3400D DISPLAY | KJ3400F FINGERPRINT |
CPU | 32bit CPU | ||
Sensor | without Fingerprint | 500 DPI optical sensor | |
Users(Fingerprint) | without Fingerprint | 5,000 | |
Users(Card) | 5,000 (option : 40000) | 5,000 (option : 40000) | 5,000 (option : 40000) |
Event Buffer(Log) | 200,000 | ||
LCD | without LCD | 1.8″ TFT Color LCD | |
Voice Output | Yes | ||
Tamper Switch | Yes | ||
Speed | under 0.1 sec | 0.1sec for 5k | |
Card Format | 125khz(EM/Indala/HID prox) 13.56Mhz(Mifare/iClass/iClass SE/Felica) (selectable) BLE/NFC (option) | ||
Input Ports | 4ea | ||
Output Ports | 2 relay outputs(lock, alarm) | ||
Wiegand Input Wiegand Output | 26/34/35/37/64 Bit (selectable from setting) | ||
USB | event & user information download & upload | ||
LED | Color LED (3mode, granted, denied, steady) | ||
External Interface | Wiegand, USB memory card | ||
FAR/FRR | na | na | 0.00001 / 0.1(%) |
Product Size | 48 x 138 x 38mm | ||
IP grade | IP65 | ||
Product Weight (NET) | 165g | ||
Communication | TCP/IP, RF485 or RS232, Blutooth | ||
DHCP | Yes | ||
Language | Multi Language | ||
Humidity | 20~80% | ||
Temperature | -20~60︒C | ||
Power | 12V DC | ||
Anti-Passback | Supported | ||
Certificate | CE, FCC, RoHS |

