The ZKTeco BUTTON02S is an RFID card reader with an integrated keypad designed for access control systems. It supports MIFARE and other compatible RFID technologies, offering Wiegand 26/34 and RS485 communication interfaces. This reader is capable of handling up to 10,000 users and storing up to 100,000 events. It features a 4×4 matrix keypad with backlighting for easier operation in low-light environments. With an IP65 rating, it is resistant to dust and water, making it suitable for both indoor and outdoor environments. The device also includes LED indicators and a buzzer for status notifications.