Dual Frequency RFID Reader – 125kHz / 13.56MHz Wiegand ID IC Proximity Access Control Reader
System integrators, access control contractors, and security distributors require reliable dual frequency RFID readers capable of reading both 125kHz ID and 13.56MHz IC cards within a single device. This dual frequency RFID reader supports Wiegand 26/34 output and is designed for commercial access control deployments, time attendance systems, and secure entry projects where mixed card populations must be managed without requiring separate readers. By supporting legacy 125kHz proximity cards alongside modern 13.56MHz smart cards, this reader eliminates the operational friction of phased migration and reduces hardware costs for large-scale multi-site rollouts.
As a dedicated do rfid reader manufacturer, we produce this reader in our own factory with stable production capacity, batch consistency, and fast lead times suitable for wholesalers, OEM partners, and project-based procurement. Whether you are deploying 50 units for a single office building or 5,000 units for a national access control rollout, this reader delivers reliable card reading at 7 cm range with low power consumption and wide temperature tolerance.
Product Overview
The DO-DT20 dual frequency RFID reader combines 125kHz proximity ID reading and 13.56MHz smart card reading in a single compact housing. It outputs standard Wiegand 26 or 34 bit data, making it directly compatible with most access control panels, controllers, and third-party systems already deployed in the field. The reader supports ID, HID, IC, and combined ID+IC+HID card reading through customizable firmware options, allowing system integrators to standardize on one reader model regardless of the card technology used at each site.
This reader is particularly suited for upgrading existing 125kHz-only access control systems to support 13.56MHz smart cards without replacing the entire infrastructure. The Wiegand interface ensures plug-and-play compatibility with existing controllers, reducing installation labor and system downtime during migration.
- Dual frequency support: 125kHz and 13.56MHz in one reader
- Wiegand 26 or 34 bit output for broad controller compatibility
- Read range: 7 cm for both ID and IC cards
- Card reading speed: 0.2 seconds
- Low power consumption: 70 mA at 12V DC
- Operating temperature: -20°C to +70°C
- Compact form factor: 120 × 50 × 20 mm
- Customizable frequency combinations: ID, HID, IC, ID+IC, ID+HID, IC+HID, ID+IC+HID
Product Advantages
- Single reader for mixed card ecosystems – Eliminates the need to install separate readers for 125kHz and 13.56MHz cards, reducing hardware procurement complexity and installation costs.
- Direct Wiegand integration – Works with existing access control panels, controllers, and third-party systems without additional converters or protocol adapters.
- Low current draw – 70 mA operating current at 12V DC allows long cable runs and eases power supply sizing for large deployments.
- Wide environmental tolerance – Rated from -20°C to +70°C, suitable for indoor and sheltered outdoor installations across diverse climates.
- Fast card reading – 0.2 second read speed supports high-traffic entry points without bottlenecks.
- Compact and low-profile – 120 × 50 × 20 mm form factor fits standard single-gang electrical box mounting.
Key Features
- Dual frequency operation: 125kHz proximity and 13.56MHz contactless smart card
- Wiegand output: 26 bit or 34 bit, field configurable
- Customizable card type support: ID, HID, IC, or combined ID+IC+HID
- Read range: 7 cm typical for both frequency bands
- Card reading speed: 0.2 seconds
- Operating voltage: DC 12V
- Operating current: 70 mA
- Operating temperature: -20°C to +70°C
- Operating humidity: 10% to 90% non-condensing
- Enclosure material: ABS plastic, black
- Dimensions: 120 mm × 50 mm × 20 mm
- Weight: 120 g
- LED indicator: bi-color (red/green) for status indication
- Buzzer: built-in audible feedback for card read confirmation
Technical Specifications
| Parameter | Value |
| Frequency | 125kHz / 13.56MHz (dual frequency) |
| Supported card types | ID (125kHz), IC (13.56MHz), HID, combined ID+IC+HID (customizable) |
| Output interface | Wiegand 26 bit / 34 bit |
| Read range | 7 cm (typical, depends on card type and environment) |
| Card reading speed | 0.2 seconds |
| Operating voltage | DC 12V ± 10% |
| Operating current | 70 mA (typical) |
| Standby current | 50 mA |
| Operating temperature | -20°C to +70°C |
| Operating humidity | 10% to 90% (non-condensing) |
| Dimensions | 120 mm × 50 mm × 20 mm |
| Weight | 120 g |
| Enclosure material | ABS, black |
| LED indicator | Bi-color red/green |
| Buzzer | Built-in |
| Warranty | 2 years |
Industrial Applications
Access control system integration
Security system integrators deploy this reader in commercial office buildings, government facilities, educational campuses, and healthcare environments where both legacy 125kHz ID cards and newer 13.56MHz smart cards are in active use. The dual frequency capability allows phased card migration without replacing hardware at every door.
Time and attendance
Workforce management system providers use this reader for employee clock-in terminals where existing ID badge formats must be supported alongside new IC-based credentials. The Wiegand output connects directly to standard attendance controllers.
Multi-tenant residential and commercial properties
Property managers and security contractors standardize on this reader for new installations and retrofits, knowing it supports both current and planned future card technologies.
Industrial facility entry control
Factories, warehouses, and logistics centers with mixed card populations benefit from a single reader that handles all credential types, simplifying card replacement cycles and reducing spare parts inventory.
Parking and perimeter access
Parking access control systems and perimeter gate installations where reader reliability across temperature extremes and continuous operation is required.
OEM / ODM Manufacturing Support
As a factory-based do rfid reader manufacturer, we offer full OEM and ODM customization for this dual frequency RFID reader. Procurement teams and product managers can request:
- Custom enclosure color and branding with logo printing or laser engraving
- Custom Wiegand output format (26, 34, or other bit lengths)
- Custom cable length and connector type for specific installation requirements
- Custom firmware for specialized card type combinations beyond standard ID/IC/HID
- Custom packaging design for retail or wholesale distribution channels
- Private label production with dedicated product documentation
Our OEM process includes technical review of your requirement, sample approval, batch production with consistent quality, and documented quality inspection before shipment. We support both small pilot runs for project validation and large-scale production for national or regional distribution.
Factory Production Advantages
Our manufacturing facility has been producing RFID readers and access control products for over 20 years. This cumulative production experience translates into stable manufacturing processes, consistent product quality across batches, and reliable supply for long-term wholesale and project-based procurement.
Production capacity: Our factory lines can produce over 50,000 units per month, ensuring we can meet large-scale deployment schedules without extended lead times. For standard orders, lead time is 3 to 7 days after confirmation. For bulk orders of 5,000 units or more, typical production takes 7 to 15 days depending on customization requirements.
Quality control: Every reader undergoes functional testing including read range verification, Wiegand output integrity check, current draw measurement, and visual inspection before packaging. Incoming components are batch-tested to ensure compliance with specifications.
Export experience: We have shipped RFID readers to over 60 countries and maintain familiarity with international shipping documentation, customs clearance requirements, and certificate support including Certificate of Origin, FTA, Form F, and Form E as applicable.
Supply chain stability: Long-standing relationships with component suppliers ensure stable access to key materials including reader ICs, PCBAs, enclosures, and cables. This supply chain reliability is especially important for distributors and system integrators who require consistent product availability for ongoing projects.
Bulk Supply & Project Deployment Support
Wholesalers, distributors, and project contractors benefit from our structured bulk supply and deployment support:
- Volume pricing – Tiered pricing for bulk orders, with discounts scaling from 100 units to 10,000+ units
- Batch consistency – All units within an order are produced from the same component lot and firmware revision, ensuring uniform performance across multi-site deployments
- Sample support – Free sample units available for technical evaluation and compatibility testing before bulk commitment (freight paid by buyer)
- Technical documentation – Datasheets, wiring diagrams, installation guides, and compatibility notes provided for each order
- Project-based support – For large-scale deployments, our engineering team can assist with system integration questions, controller compatibility verification, and site-specific configuration
- After-sale support – 2-year warranty against manufacturing defects, with replacement or repair service for units that fail under normal operating conditions
For distributors and system integrators planning recurring deployments, we offer long-term supply agreements with fixed pricing, guaranteed lead times, and dedicated production slots. This partnership model ensures predictable procurement costs and uninterrupted project execution.
FAQ
Q: What card types does this dual frequency reader support?
A: The reader supports 125kHz ID cards (EM4100 compatible), 13.56MHz IC cards (MIFARE Classic, MIFARE DESFire, and compatible), and HID proximity cards. The exact card type support can be customized through firmware selection during ordering.
Q: Is the reader compatible with my existing access control system?
A: The reader outputs Wiegand 26 or 34 bit data, which is the most widely used interface in the access control industry. Most major access control panels and controllers from all leading brands accept Wiegand input. Contact our technical team with your controller model for specific compatibility confirmation.
Q: What is the actual read range in real-world installation?
A: Typical read range is 7 cm for both 125kHz ID cards and 13.56MHz IC cards under normal conditions. Read range can vary slightly based on card type, card orientation, mounting surface, and nearby metal objects. For best results, avoid direct metal mounting surfaces or use a spacer.
Q: Can I get a sample before placing a bulk order?
A: Yes, free samples are available for qualified buyers. You pay the shipping cost. Samples are shipped within 1 to 5 working days after request confirmation.
Q: What are the lead times for bulk orders?
A: For standard bulk orders of 500 to 5,000 units, lead time is 7 to 15 days. For orders exceeding 10,000 units or requiring significant customization, lead time is typically 15 to 30 days. Specific timelines are confirmed at order placement.
Q: Do you offer OEM or private label service?
A: Yes, we offer full OEM and ODM services including custom branding, enclosure color, cable type, packaging, and firmware. Minimum order quantities for private label production start at 500 units.
Q: What is the warranty period?
A: The reader carries a 2-year warranty against manufacturing defects. Damage caused by improper installation, electrical surge, physical impact, or unauthorized modification is not covered. Contact us for warranty claim procedures.
Q: How is the reader installed and mounted?
A: The reader is designed for wall mounting using standard single-gang electrical box or direct surface mounting with screws. The compact 120 × 50 × 20 mm size fits most standard mounting locations. A mounting template and installation guide are included with each unit.
Q: Can the reader be used outdoors?
A: The reader is rated for -20°C to +70°C operating temperature and 10% to 90% humidity, making it suitable for sheltered outdoor installations such as building entrances under eaves or canopies. Direct exposure to rain or prolonged direct sunlight is not recommended without additional weather protection.
Q: What is the power requirement?
A: The reader requires DC 12V power supply and draws 70 mA during operation. A standard 12V DC access control power supply with sufficient capacity for the total number of readers on the system is recommended.
For detailed technical specifications, customization options, pricing, and procurement support, contact our sales team at info@dorfidreader.com.