The ZKTeco KR503M is a professional 13.56MHz MIFARE (IC) RFID card reader designed for secure and reliable access control applications. Supporting 34-bit Wiegand (W34) output, it integrates seamlessly with ZKTeco InBio, C3 Series, and other Wiegand-compatible access control controllers, making it an ideal choice for offices, factories, schools, hospitals, commercial buildings, and residential facilities.

Built with a durable ABS + PC housing and an IP65-rated weatherproof enclosure, the KR503M is suitable for both indoor and outdoor installations. It offers a card reading distance of up to 5 cm, ≤200 ms response time, dual-color LED indicators, a built-in buzzer, and support for external LED and buzzer control for dependable RFID authentication. The single-gang mounting design allows easy installation on standard electrical back boxes and wall-mounted access points.

Key Features

• Supports 13.56MHz MIFARE (IC) RFID cards.
• 34-bit Wiegand (W34) output interface.
• Card reading distance of up to 5 cm.
• Fast card reading speed of ≤200 ms.
• Durable ABS + PC housing.
• IP65-rated weatherproof design for indoor and outdoor use.
• Standard single-gang mounting for easy installation.
• Dual-color red and green LED status indicators.
• Built-in buzzer with external LED and buzzer control.
• Compatible with ZKTeco InBio, C3 Series, and other Wiegand 34-bit access control systems.