RFID Card Reader Module 125KHz – Access Control & Attendance

DC 12V Embedded RFID Card Reader Module for Access Control, Attendance & Parking

Upgrade your building security, parking management, or attendance tracking with this versatile DC 9–12V Embedded RFID Card Reader Module (Model H3003D/H3003C) from Asia-Teco. Supporting both 125KHz (EM/ID card) and 13.56MHz (IC card) frequencies, this compact embedded module integrates seamlessly into intercoms, access gates, and time-attendance systems — all in one reliable unit. Made in Mainland China.

Key Features

• Dual Frequency Support: Compatible with 125KHz EM/ID cards and 13.56MHz IC cards for broad versatility.
• Large Card Capacity: Stores up to 2,000 user cards — ideal for offices, apartment buildings, and parking facilities.
• Wide Temperature Range: Operates reliably from -40°C to 60°C, suitable for both indoor and outdoor installations.
• Low Power Consumption: Working current of just 60–80mA at DC 9–12V, energy-efficient for continuous operation.
• Read Range: Effective card reading distance of 5–10cm for secure, intentional access.
• Infrared Remote Programming: Manage card enrollment, deletion, and door control remotely via infrared commands.
• LED Status Indicators: Dual red/green LED feedback for clear visual confirmation during card operations.
• Easy Card Management: Add, clear individual, or clear all cards using master card or infrared remote operation.
• Password Protection: Set a custom 4-digit password for extra security layers.
• No Hazardous Chemicals: Free from high-concern chemical substances.

Technical Specifications

Operating Instructions

Master Card Setup

Power off the unit, short-circuit S2's pin 1 and pin 2, then power on. Red and green LEDs will blink alternately. Read two cards consecutively — the first becomes the Add Card and the second becomes the Clear Card. Power off and move S2's pin 2 and pin 3 to short-circuit to save.

Adding Cards

In working state, read the Add Card (green LED blinks), then scan each new card you wish to enroll. Read the Add Card again to finish.

Clearing Cards

In working state, read the Clear Card (red LED blinks), scan the cards to remove, then read the Clear Card again to complete.

Clearing All Cards

In working state, read the Clear Card, then the Add Card, then the Clear Card again. After 5 seconds, all cards are cleared.

Infrared Remote Programming

• Enter Program: Press "1234" + "CALL"
• Continuously Add Cards: Press "1" + "CALL" (green LED blinks)
• Continuously Clear Cards: Press "3" + "CALL" (red LED blinks)
• Add Card by Number: Press "0" + 10-digit chip number + "CALL"
• Clear Card by Number: Press "2" + 10-digit chip number + "CALL"
• Clear All Cards: Press "4" + "CALL" (audible beep confirms)
• Door Normal Open: Press "5" + "CALL"
• Door Normal Close: Press "6" + "CALL"
• Open Door Once: Press "7" + "CALL"
• Change Password: Press "8" + 4-digit password + "CALL"
• Exit Program: Press "EXIT" or wait 10 seconds for auto-exit

Ideal Applications

• Residential and commercial building access control
• Parking lot and gate management systems
• Employee attendance and time-tracking systems
• Building intercom integration
• Multi-tenant property security

For more information on electronic access control standards and best practices, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What card types are compatible with this RFID card reader module?

A: This embedded RFID module supports both 125KHz EM/ID cards and 13.56MHz IC cards, making it compatible with a wide range of standard access control and attendance card formats.

Q: How many users or cards can this access control module store?

A: The module can store up to 2,000 user cards, making it suitable for small to mid-sized buildings, parking facilities, offices, and multi-tenant residential properties.

Q: Can I manage cards remotely without physically accessing the unit?

A: Yes. The module supports infrared remote programming, allowing you to add or remove individual cards by number, clear all cards, change the password, and control door status — all remotely via infrared commands.

Q: What is the operating voltage for this RFID embedded module?

A: The module operates on DC 9–12V with a working current of 60–80mA, making it energy-efficient and compatible with standard access control power supplies.

Q: Is this module suitable for outdoor installations?

A: Yes. With a wide working temperature range of -40°C to 60°C, this module is designed to function reliably in both indoor and outdoor environments, including parking structures and building entry points.