Product Overview
The DO-207B Proximity Smart 125kHz RFID Card Reader is a standalone access control keypad designed for single-door security management in commercial and industrial environments. This unit integrates a 125kHz proximity card reader, a silicone keypad for PIN entry, and a relay output for electric lock control, all within a compact 86x86mm form factor. System integrators and security contractors choose this model for its reliable Wiegand 26 compatibility, weather-resistant construction, and flexible authentication modes—card only, PIN only, or card plus PIN. Wholesale buyers and distributors benefit from a proven design that supports both standalone operation and integration into larger access control networks, reducing deployment complexity and per-door cost.
Product Advantages
System Integrators and Security Contractors
The DO-207B simplifies project deployment by combining reader, keypad, and controller functions in one unit. With 500 user capacity (expandable to 4000) and support for Wiegand 26 input/output, this reader can operate independently or connect to a central controller for large-scale installations. The weatherproof housing and wide operating temperature range (-20°C to 70°C) make it suitable for both indoor and outdoor gates, office entrances, and warehouse doors.
Wholesalers and Distributors
As a do rfid reader manufacturer, we produce the DO-207B in batch quantities with consistent quality and fast lead times. The standardized 86x86mm form factor fits existing electrical boxes, simplifying retrofit projects. Bulk orders benefit from stable pricing, reliable stock levels, and compatibility with common electric locks and exit buttons.
OEM / ODM Customers
The DO-207B supports customization of housing color, logo printing, packaging, and firmware parameters such as card capacity and relay timing. This allows security brands to offer a differentiated product without investing in new hardware development.
Key Features
- Three Authentication Modes: Card only, PIN only, or card plus PIN, providing flexible security levels for different user groups.
- Wiegand 26 Input and Output: Functions as a standalone controller or as a card reader for a larger access control system, simplifying system integration.
- High-Sensitivity Reader: Card reading in less than 0.1 seconds reduces wait times at busy entrances, improving traffic flow.
- 500 User Capacity (Expandable to 4000): Suitable for small to medium-sized facilities without requiring additional hardware.
- Waterproof / Weatherproof Design: Sealed housing with silicone keypad protects against rain and dust, enabling reliable outdoor operation.
- Built-in Doorbell and Exit Button Input: Reduces the need for additional wiring and accessories, lowering installation cost.
- Relay Output for Electric Lock: 12VDC/2A relay directly drives magnetic locks or electric strikes, eliminating the need for separate relay modules.
- Compact 86x86mm Form Factor: Fits standard European electrical boxes, simplifying retrofit and new installations.
Technical Specifications
| Parameter | Specification |
| Power Supply | 12VDC ±10% |
| Operating Frequency | 125kHz |
| Communication Interface | Wiegand 26 (input and output) |
| Supported Cards | 125kHz proximity cards (EM4100 compatible) |
| Reading Distance | 1.18 – 2.36 inches (30 – 60 mm) |
| User Capacity | 500 users (optional upgrade to 4000) |
| Relay Output | 12VDC / 2A |
| Authentication Modes | Card only, PIN only, Card + PIN |
| Operating Temperature | -20°C to 70°C (-4°F to 158°F) |
| Relative Humidity | 20% – 90% RH (non-condensing) |
| Dimensions | 86 x 86 mm (standard electrical box compatible) |
| Keypad Type | Silicone rubber, weatherproof |
| Enclosure Rating | Weatherproof / waterproof for outdoor use |
| Additional Inputs | Exit button, doorbell |
| Access Output | Relay (lock control) or Wiegand output |
Industrial Applications
Office and Commercial Buildings
The DO-207B secures employee entrances, meeting rooms, and back-office doors. The card-plus-PIN mode adds a second factor for high-security areas. System integrators can deploy dozens of units across multiple floors, all managed through a central Wiegand controller.
Warehouses and Logistics Centers
Weatherproof construction and wide temperature tolerance enable reliable operation on loading docks and warehouse gates. The fast card read time keeps personnel moving without bottlenecks. Bulk purchasing from our factory ensures consistent performance across large facilities.
Manufacturing and Industrial Sites
The silicone keypad and sealed housing resist dust and moisture common in production environments. The relay output directly controls magnetic locks on perimeter gates and restricted zone doors. Long-term wholesale supply agreements guarantee replacement units and spare parts availability.
Residential Communities and Gated Entries
Property managers install the DO-207B at community gates and underground parking entrances. The standalone mode reduces wiring complexity, and the 500-user capacity covers most residential buildings. The doorbell input integrates with existing intercom systems.
OEM / ODM Manufacturing Support
As a do rfid reader manufacturer with over 20 years of production experience, we offer comprehensive customization services for the DO-207B. OEM customers can request:
- Custom Logo and Branding: Silkscreen printing or laser engraving on the housing, plus custom packaging design.
- Color Options: Standard white, black, or gray housing; custom colors available for bulk orders.
- Firmware Customization: Adjust user capacity (500 / 1000 / 2000 / 4000), relay activation time, and authentication mode defaults.
- PCB and Component Selection: Choice of connector types, cable length, and relay rating for specific electric lock compatibility.
- Label and Manual: Custom labels with your brand and technical specifications, plus multilingual user manuals.
Minimum order quantities for OEM customization are 500 units per batch. Standard product is available for immediate shipment with no minimum quantity.
Factory Production Advantages
Our factory is one of the largest RFID card, NFC tag, RFID keypad, RFID wristband, RFID reader, and access control product manufacturers in China, with over 20 years of continuous production experience. Key capabilities that benefit wholesale buyers and long-term partners include:
- Stable Production Capacity: Monthly output exceeds 200,000 units across all access control product lines, ensuring on-time delivery for large-scale projects.
- Batch Consistency: All DO-207B units are tested for read range, relay switching, and keypad response before packing. Batch-to-batch performance variation is below 2%.
- Quality Inspection Process: In-house testing covers card read sensitivity, Wiegand signal integrity, relay endurance (100,000 cycles), and weatherproof seal integrity.
- Fast Lead Time: Sample orders ship within 1–5 days. Bulk orders of 5000 units typically ship within 7–15 days. Orders of 100,000 units ship within 15–30 days.
- Export Experience: We ship to over 80 countries via DHL, FedEx, TNT, UPS, EMS, sea freight, and air freight. Customs documentation and compliance support are provided for each destination.
- Long-Term Supply Stability: Raw material contracts with chip and component suppliers ensure production continuity even during market shortages.
Bulk Supply & Project Deployment Support
For system integrators and distributors managing multiple concurrent projects, we offer structured bulk supply programs:
- Consistent Pricing Tiers: Volume discounts apply at 500, 2000, 5000, and 10,000+ unit quantities. Pricing remains stable for 90 days after quotation.
- Dedicated Project Allocation: For projects exceeding 5000 units, we reserve production capacity and prioritize your order to meet deployment deadlines.
- Technical Support: Our engineering team provides integration guidance, wiring diagrams, and compatibility testing support for Wiegand controllers and electric locks.
- Sample Program: Free samples are available for qualified buyers. The freight cost is covered by the buyer, and samples ship within 1–5 days.
- Payment Options: T/T, PayPal, Western Union, and Trade Assurance are accepted. Long-term credit terms are available for established partners.
FAQ
Q: What is the difference between standalone mode and card reader mode?
In standalone mode, the DO-207B manages users and unlocks the door directly. In card reader mode, it sends the card number via Wiegand 26 to a central controller. The mode is selected during installation.
Q: Can I use this reader with 13.56 MHz cards?
The DO-207B operates at 125kHz. It is compatible with EM4100 and similar 125kHz proximity cards. For 13.56 MHz cards, please see our DO-208 series readers.
Q: How many users can be stored?
Standard configuration supports 500 users. An optional firmware upgrade increases capacity to 1000, 2000, or 4000 users. Contact us for bulk pricing on upgraded versions.
Q: Is the reader suitable for outdoor installation?
Yes. The silicone keypad and sealed housing provide weatherproof protection. The operating temperature range is -20°C to 70°C, covering most climates.
Q: What is the lead time for bulk orders?
Sample orders (1–10 units) ship in 1–5 days. Bulk orders of 5000 units ship in 7–15 days. Orders of 100,000 units ship in 15–30 days. Contact us for a specific production schedule.
Q: Can I get a sample before placing a bulk order?
Yes. Free samples are available for qualified buyers. The freight is paid by the buyer. Samples include standard DO-207B units with default firmware.
Q: How do I connect the reader to my existing access control system?
The DO-207B uses Wiegand 26 output. Connect the DATA0 and DATA1 wires to your controller. A wiring diagram is included with each unit, and our technical support team can assist with integration.
Q: What is the warranty period?
The DO-207B carries a 2-year warranty against manufacturing defects. Damage caused by improper installation, lightning, or physical abuse is not covered. Extended warranty options are available for bulk orders.
Q: Do you offer OEM packaging?
Yes. We provide custom packaging with your brand logo, product specifications, and barcode. MOQ for custom packaging is 500 units.
Q: How do I request a quote for a large project?
Contact us via email at info@dorfidreader.com with your quantity, required customization, and delivery timeline. We will provide a formal quotation within 24 hours.