The Promag GP20-10 is a contactless RFID proximity reader designed for use in access control systems, time and attendance management, and other applications requiring identification. The device operates in the 125 kHz frequency range and is specifically designed for EM4102 type transponders. It enables contactless capture of identification data from a distance of up to 20 cm, with the reading distance depending on the transponder type and environmental conditions. The device features multiple interfaces, including RS232, Wiegand, and MSR ABA Track 2, ensuring flexible integration into existing systems. Dimensions are 78 mm (length) × 43 mm (width) × 15 mm (height), making it suitable for compact mounting in doors, switches, or other installation solutions. Connection is made via an open cable end, allowing for individual wiring and integration into existing cabling.

Applications
The Promag GP20-10 is suitable for applications in access control, personnel management, and security technology. It can be used in offices, factories, warehouses, or other enclosed spaces where contactless identification of persons or objects is required. The reading distance of up to 20 cm allows for fast and reliable capture without the user needing to touch the device. Support for MSR ABA Track 2 extends functionality, as magnetic stripe cards can also be read, increasing compatibility with existing systems.

Features and Specifications in Detail
The device supports communication via RS232 and Wiegand, making it suitable for a wide range of access control systems. The Wiegand interface is a common standard connection in security technology, enabling simple data transfer between reader and control unit. The RS232 interface allows for serial communication, often used in older or specific systems. The MSR ABA Track 2 function enables reading of magnetic stripe cards in ABA format, allowing the device to be used in systems based on magnetic stripes. The open cable end requires individual wiring, enabling installation to be adapted to the specific environment.

Technology Explained Simply
The RFID proximity reader operates in the 125 kHz frequency range, resulting in a short range but high reliability at close distances. The technology is based on inductive energy transfer, where the reader generates an electromagnetic field that activates the transponder. The transponder then sends back its identification number, which is received and forwarded by the reader. The reading distance of up to 20 cm is typical for 125 kHz systems and depends on transponder alignment, environment, and reader performance. The operating voltage is between 5 and 12.5 V DC, allowing flexible power supply from various sources, such as an external power supply or battery. The enclosure is weather-resistant, enabling outdoor use or use in damp environments, although no specific protection rating such as IP67 or IP65 is specified.

Compatibility and Accessories
The device is compatible with EM4102 type transponders, commonly used in many access control systems. Support for MSR ABA Track 2 extends compatibility to magnetic stripe cards, widely used in existing systems. Interfaces RS232 and Wiegand enable integration with a wide range of control units and systems. No specific accessories are included in the delivery; wiring is done via the open cable end, requiring installation to be adapted to the specific setup.

Installation and Mounting
Mounting is done via the open cable end, requiring individual wiring. Dimensions of 78 × 43 × 15 mm allow for compact installation, e.g., in doors, switches, or on walls. The weather-resistant enclosure allows outdoor installation, although no specific protection rating is stated. Power supply is via 5 to 12.5 V DC, allowing use of an external power supply or battery. No special mounting aids or fastening materials are included in the delivery.

Operational Advantages
The Promag GP20-10 offers reliable contactless identification with a reading distance of up to 20 cm, enabling fast and user-friendly operation. Support for multiple interfaces (RS232, Wiegand, MSR ABA Track 2) increases flexibility for integration into existing systems. The weather-resistant enclosure allows use in various environments, including outdoors. The open cable connection enables individual adaptation to the specific installation. The warranty is 1 year, providing a certain level of operational security. No additional components such as batteries or mounting materials are included in the delivery.