MPN: - AT-312-DE
RFID 125 KHz Reader With USB Interface
![Product 4](https://avyannatech.com/wp-content/uploads/2025/09/4.png")
Features and Benefits
- Plug-and-play installation, USB HID class, ASCII output format
- Reading distance: 1 mm to 40 mm.
- LED and buzzer indication
- USB Power supply, no need of external power supply
- Equivalent Tags : EM-4100 Tags, Passive Tags
- Compatible with Windows, Linux, Android, MAC
Certifications
- Overview
- Specifications
- Resources
- Model
The 125 KHz Low-Frequency RFID Reader with USB/TTL Interface is an advanced and versatile device designed for seamless integration into various identification and authentication systems. Utilizing low-frequency RFID technology, Low-cost method for reading passive RFID tags, this reader offers reliable and efficient performance, making it ideal for a wide range of applications such as access control, asset tracking, and personal identification. The RFID Card Reader is available in two versions: A TTL-level serial interface for use with a microcontroller and a USB interface for direct connection to a computer.
General
| RFID Frequency | 125 KHz |
|---|---|
| Installation | Plug-and-Play |
| Reading Distance | 1mm to 40mm |
| Communication Interface | USB |
| USB Class | HID |
| Output Format | ASCII (Decimal Tag Number) |
| Card / Tag Supported | EM-4100 Tags, Passive Tags |
| Antenna | Built-in |
| Compatible with | Windows, Linux, Android, MAC |
| Reading & Response time | Less than 400ms |
| Country of origin | India |
Power Parameters
| Operating Voltage | 5V @50mA (not required external supply) |
|---|
Physical Characteristics
| Dimension | 110 (L) * 70 (H) * 12 (W) mm |
|---|---|
| Weight | 150g |
Environmental Limits
| Operating Temperature | 5°C to 65°C |
|---|---|
| Storage Temperature | -5°C to 80°C |
| Relative Humidity | 5% - 85% |
Standards and Certifications
| RoHS |
|---|
Resources Content
Model Content
Specifications
General Information
Electrical Specifications
Structure
Environmental Specification
| Country of Origin | India |
| RFID Frequency | 125 KHz |
| Installation | Plug-and-Play |
| Weight | 150g |
| Reading Distance | 1mm to 40mm |
| Communication Interface | USB |
| USB Class | HID |
| Port 2 | RS-485 : D+, D-, GND |
| Output Format | ASCII (Decimal Tag Number) |
| Card / Tag Supported | EM-4100 Tags, Passive Tags |
| Compatible with | Windows, Linux, Android, MAC |
| Antenna | Built-in |
| Relative Humidity | 5% – 85% |
| Storage Temperature | -5°C to 80°C |
| Operating Temperature | 0°C to 65°C |
| Operating Voltage | 5V @50mA (not required external supply) |
