125khz rfid reader
December 22, 2025
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# 125kHz RFID Reader: A Comprehensive Guide to Technology and Applications
## What is a 125kHz RFID Reader?
A **125kHz RFID reader** is a device that operates at the low-frequency (LF) band of 125 kilohertz to communicate with compatible RFID tags. This technology has been a cornerstone in access control, animal identification, and various industrial applications for decades. From my personal experience working with security systems, I've found that **125kHz RFID readers** offer remarkable reliability in short-range scenarios, though they lack the advanced features of higher frequency systems.
## Technical Specifications and Parameters of 125kHz RFID Reader Systems
When selecting a **125kHz RFID reader**, understanding the technical specifications is crucial. Here are detailed parameters for a typical module (Note: These specifications are for reference. For exact data, please contact our backend management team):
* **Operating Frequency:** 125 kHz ± 5 kHz
* **Communication Interface:** UART (TTL level: 3.3V or 5V), Wiegand 26/34, RS232, or RS485.
* **Read Range:** Typically 5 cm to 15 cm, depending on antenna size and tag type.
* **Power Supply:** DC 5V-12V, with an average current consumption of 80-150mA.
* **Antenna Dimensions:** Common sizes include 50mm x 50mm, 70mm x 70mm, or 100mm x 100mm PCB antennas.
* **Chip/Module Code:** Often based on industry-standard chips like EM4095 (reader IC) or compatible with EM4100 protocol tags. Specific module codes (e.g., "ID-2LA", "RDM125") vary by manufacturer.
* **Output Data Format:** 5-byte or 8-byte tag ID in ASCII or hexadecimal format.
* **Operating Temperature:** -20°C to +70°C.
**Important Note:** The above technical parameters are for reference data. Specifics, including exact dimensions and chipset firmware codes, require confirmation. Please contact the backend administrator for precise specifications and datasheets for your project needs.
## Personal Skill Application: Building a DIY Access System
My journey into electronics was fueled by a simple **125kHz RFID reader**. I once built a personalized door lock for my workshop using an Arduino, a basic **125kHz RFID reader** module (like the RDM6300), and some key fob tags. This hands-on project taught me about serial communication, power management, and embedded systems logic—a foundational skill set that has benefited my career immensely. It's a perfect starter project for anyone looking to understand RFID practically.
## Opinions on the 125kHz RFI
The Use of RFID for Human Identity Verification
A **125kHz RFID reader** is a device that operates at the low-frequency (LF) band of 125 kilohertz to communicate with compatible RFID tags. This technology has been a cornerstone in access control, animal identification, and various industrial applications for decades. From my personal experience working with security systems, I've found that **125kHz RFID readers** offer remarkable reliability in short-range scenarios, though they lack the advanced features of higher frequency systems.
## Technical Specifications and Parameters of 125kHz RFID Reader Systems
When selecting a **125kHz RFID reader**, understanding the technical specifications is crucial. Here are detailed parameters for a typical module (Note: These specifications are for reference. For exact data, please contact our backend management team):
* **Operating Frequency:** 125 kHz ± 5 kHz
* **Communication Interface:** UART (TTL level: 3.3V or 5V), Wiegand 26/34, RS232, or RS485.
* **Read Range:** Typically 5 cm to 15 cm, depending on antenna size and tag type.
* **Power Supply:** DC 5V-12V, with an average current consumption of 80-150mA.
* **Antenna Dimensions:** Common sizes include 50mm x 50mm, 70mm x 70mm, or 100mm x 100mm PCB antennas.
* **Chip/Module Code:** Often based on industry-standard chips like EM4095 (reader IC) or compatible with EM4100 protocol tags. Specific module codes (e.g., "ID-2LA", "RDM125") vary by manufacturer.
* **Output Data Format:** 5-byte or 8-byte tag ID in ASCII or hexadecimal format.
* **Operating Temperature:** -20°C to +70°C.
**Important Note:** The above technical parameters are for reference data. Specifics, including exact dimensions and chipset firmware codes, require confirmation. Please contact the backend administrator for precise specifications and datasheets for your project needs.
## Personal Skill Application: Building a DIY Access System
My journey into electronics was fueled by a simple **125kHz RFID reader**. I once built a personalized door lock for my workshop using an Arduino, a basic **125kHz RFID reader** module (like the RDM6300), and some key fob tags. This hands-on project taught me about serial communication, power management, and embedded systems logic—a foundational skill set that has benefited my career immensely. It's a perfect starter project for anyone looking to understand RFID practically.
## Opinions on the 125kHz RFIPhone: +86 19925232774
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