The UW-R4G with RFID reader is a secure access control system manufactured by Netronix. It is designed with a built-in passive RFID reader, as well as other IO ports, such as GPIO, RS485, a buzzer, and a real-time clock. It is also equipped with a built-in antenna for communication and an output relay for controlling electrical loads. The UW-R4G is perfect for access control applications, like locking doors and garage entrances, and can be used to monitor activity and security at businesses and government installations. Thanks to its integrated RFID reader, the UW-R4G is capable of quickly authenticating users and providing secure access, making it a convenient and reliable solution for any access control application.