Sanan
SA-R201C RFID ID Card Reader
SA-R201C RFID ID Card Reader
125 kHz Contactless ID Card Reader with RS232 Communication for Vehicle Access Control and Fleet Identification.
Reliable identification solution with high sensitivity, low power consumption, and industrial-grade stability.

01 — Product Overview

SA-R201C is a compact RFID ID card reader designed for contactless identification applications.
It supports 125 kHz EM4100-compatible ID cards, providing fast card recognition and stable data transmission.
With advanced RF receiving circuit design, an industrial embedded MCU, and an efficient decoding algorithm, the reader delivers excellent performance in vehicle and industrial environments.
02 — Key Features
125 kHz RFID Recognition
Supports EM4100 ID cards with fast and accurate identification.
RS232 Communication
Real-time data transmission for connection with controllers and management systems.
Strong Protection Design
Anti-metal shielding, surge protection, and reverse wiring protection.
Low Power Consumption
DC 5-16V operation with less than 50 mA current consumption.
Outdoor Application
Sealed resin structure suitable for indoor and outdoor environments.
Compact Design
Small size design: 48×80×12.5 mm.
03 — Working Principle
The reader antenna sends an RF carrier signal outward.
The ID card receives a signal and activates the internal chip.
The card sends encrypted identification data back to the reader.
The reader decodes information and transfers data to the backend controller.
04 — Product Specifications
| Card Type | ID Card / EM4100 |
| Operating Frequency | 125 kHz |
| Reading Distance | 5-15 cm |
| Operating Voltage | DC 5~16V |
| Operating Current | <50mA |
| Reading Speed | <0.2s |
| Communication | RS232 |
| Temperature | -25~85℃ |
| Dimension | 48×80×12.5 mm |
05 — Wiring / Interface

06 — Applications
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Vehicle Access Control
Driver identification and vehicle authorization.
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Fleet Management
Driver card authentication for commercial vehicles.
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Security System
RFID-based access identification solution.
Need an RFID Vehicle Identification Solution?
Contact SANAN for OEM customization and integrated vehicle solutions.