ZKTeco KR503H Proximity Card Access Control Reader, 125 kHZ

Deliver dependable perimeter and door access with the ZKTeco KR503H proximity reader, engineered for commercial security and monitoring applications. This compact, single-gang proximity card reader provides consistent 125 kHz credential reads and a standard Wiegand host interface, making it easy to integrate into existing access control and surveillance ecosystems. The KR503H’s IP67-rated, epoxy-potted housing stands up to rain, dust and outdoor exposure so you get fewer service calls and longer life in high-traffic areas. Installers appreciate the slim profile that fits metal or plastic US single-gang boxes for tidy, low-profile mounting, while security managers value compatibility with ZKTeco C3, InBio and most third-party controllers. Whether you’re upgrading office entry points, securing healthcare or education facilities, or expanding a multi-site security system, the KR503H balances durability, compatibility and simple deployment. Enhance your access control setup with a robust card reader that reduces complexity and supports ongoing surveillance and monitoring efforts—add the ZKTeco KR503H to your next installation or contact us for integration guidance.

• Built for reliable outdoor access: IP67-rated, tamper-resistant housing reduces downtime and maintenance.
• Seamless system integration: Built-in Wiegand output connects to most access control panels for fast deployment.
• Broad card compatibility: Reads 125 kHz proximity cards (HID and ZKTeco formats) to support mixed-card environments.
• Space-saving single-gang design: Slim footprint fits standard US single-gang boxes for neat, professional installs.
• Durable, weatherproof construction: Epoxy-potted electronics resist moisture and harsh conditions for long service life.
• Ideal for retrofit projects: Works with ZKTeco C3, InBio and third-party controllers to simplify upgrades.