ZKTeco KR503M-RS 13.56MHz Card Reader

ZKTeco KR503M-RS 13.56MHz Card Reader — RFID Access Control Reader

The ZKTeco KR503M-RS 13.56MHz Card Reader is a purpose-built Reader for ZKTeco access-control deployments across India. Importantly, it speaks Wiegand and OSDP out of the box, so it drops straight into existing panels without firmware gymnastics. Moreover, the rugged housing handles dusty entrances, humid lobbies and outdoor canopies with equal indifference.

Why integrators specify the KR503M-RS 13.56MHz Card

🌧️ Built for any entrance — IP-rated housing handles outdoor canopies, dusty industrial zones and humid lobbies with equal indifference.

🔐 Encrypted RFID stack — cloning and skimming attacks are blocked at the hardware level. Consequently, your credential ecosystem stays clean even at scale.

🔌 Wiegand & OSDP — drops into any compatible access-control panel without firmware gymnastics. As a result, retrofits stay simple.

🛠️ Easy install — standard back-box mounting and dual-voltage power keep installation time short for integrators.

🛡️ Tamper alarm — back-tamper switch alerts your panel if the unit is forced off the wall.

🔔 LED & buzzer feedback — clear visual and audio cues guide users at busy reception desks and shift-change gates.

Where this fits best

Multi-door enterprise · Single-door offices · Retail stockrooms · Factory shop floors · Parking entry/exit · Server rooms · Turnstile lanes

Specifications at a glance

• Model: ZKTeco KR503M-RS 13.56MHz Card Reader
• Category: Reader
• Credential support: EM 125 kHz / Mifare 13.56 MHz (variant-dependent)
• Output: Wiegand 26/34, OSDP
• Power: 12 V DC standard
• Feedback: LED & buzzer
• Ingress protection: IP65 (variant-dependent)
• Operating temperature: -10 °C to +60 °C
• Warranty: 12-month manufacturer warranty

Frequently asked questions

Q. What credentials are supported?
The KR503M-RS 13.56MHz Card reads standard EM 125 kHz, Mifare 13.56 MHz, and most common HID-formatted cards. Furthermore, encrypted Mifare and DESFire credentials are supported on the relevant variants.

Q. What is the read range of the KR503M-RS 13.56MHz Card?
Read range depends on the credential type — typically 3–10 cm for Mifare/EM cards and up to several centimeters for high-frequency Mifare. For long-range applications, consider our dedicated UHF reader range.

Q. What's included in the box?
The reader unit, mounting back-box, basic cable harness, quick-start guide and screws. Power and panel-side wiring are configured during installation.

Q. Does the KR503M-RS 13.56MHz Card work with third-party panels?
Yes. Wiegand and OSDP outputs make the KR503M-RS 13.56MHz Card compatible with virtually every major access-control panel in the market. As a result, you avoid vendor lock-in while keeping ZKTeco's build quality.