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At a glance

Power Supply
DC 6-14V / max 70 mA
Dimensions
116 × 16 × 75 mm (H×D×W)
Verification Speed
≤ 200 ms
Operating Temperature
-20 °C to 65 °C
ZKTeco logoModel KR503

ZKTeco KR503 Large-Format RFID Card Reader (Wiegand or RS485)

₹3,476 to ₹3,973 Incl. GST

From ₹2,946 + 18% GST

At a glance

Power Supply
DC 6-14V / max 70 mA
Dimensions
116 × 16 × 75 mm (H×D×W)
Verification Speed
≤ 200 ms
Operating Temperature
-20 °C to 65 °C

Large card reader with a bigger target area, easier to use with gloves at a factory door or from a car window at a gate. 116 x 75 mm, reads 125 kHz or 13.56 MHz cards depending on version, with Wiegand or RS485 output.

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Overview

The ZKTeco KR503 is the large-format card reader in the KR500 family, with a 116 × 75 mm face that gives a bigger target area. That helps where people present a card without looking: a gloved hand at a factory door, or a driver reaching out of a car window at a gate. It is available with Wiegand output for third party panels or RS485 for ZKTeco InBio controllers, in 125 kHz (E) and 13.56 MHz (M) versions.

Is it right for you?

  • It suits a gate or factory door where a large, easy target matters more than a slim body.
  • It is a reader only and needs a controller behind it.
  • Choose the RS485 version for InBio160, InBio260 and InBio460 controllers, or the Wiegand version for other panels.
  • Where space is tight, the KR500 does the same job in a 44 mm mullion body.

Key features

  • Reads 125 kHz ID cards (E versions) or 13.56 MHz MIFARE S50/S70 cards (M versions).
  • Card read in 200 ms or less, at up to 10 cm on E versions and 5 cm on M versions.
  • Wiegand output, 26-bit on E and 34-bit on M, or RS485 to InBio controllers.
  • IP65 textured ABS and PC housing rated -20 to 65 °C.
  • Red and green LEDs with a beeper, and external LED and buzzer control inputs.
  • 16 mm deep and 120 g, so it still mounts flat on a wall or post. Runs on 6 to 14 V DC at up to 70 mA.

What else you need

  • An access controller: InBio160, InBio260 or InBio460 for the RS485 version, or any panel with a Wiegand input for the Wiegand version.
  • A 6 to 14 V DC feed, usually from the panel.
  • A lock and an exit button for the door.

Installation

An access control installer should fit it. The reader mounts flat on a wall or post and wires to the controller over Wiegand or RS485 with its DC feed.

Before you buy

  • Choose E or M to match your card frequency, and Wiegand or RS485 to match your controller.
  • It is a reader only.

Technical specifications

Key facts

What is it?
ReaderBrand ZKTeco
How is it powered?
DC 6-14V / max 70 mA
Does it support RS-485?
Yes
Does it support Wiegand?
YesOutput · 26-bit
Can it be used outdoors?
IP65Indoor/Outdoor
Which documents are available?
Datasheet, online specifications Open documents
Can SecurityGearHub help with installation?
Setup guidanceManuals, wiring guides and answers to setup questions. On-site work is arranged separately where available. Ask about installation
Not stated by the manufacturer
PoE, OSDP, box contents

RelatedSeriesZKTeco KR500 Series, 4 modelsSolutionOffice access controlSolutionPedestrian entrance controlGuideAccess control door setup checklistDocumentsAll ZKTeco documents

General

Verification Speed
≤ 200 ms
Recognition Distance
Up to 10 cm (E models) / up to 5 cm (M models)
Card Type
ID card @ 125 kHz (E models) / IC card @ 13.56 MHz S50/S70 (M models)
Access Control Interfaces
Wiegand output: 26-bit default (E models), 34-bit default (M models); external LED and buzzer control inputs
Alarm and Indicators
Red and green LED indicators, built-in beeper
Power Supply
DC 6-14V / max 70 mA

Environment

Operating Temperature
-20 °C to 65 °C
Operating Humidity
10% to 90% RH, non-condensing

Physical

Material
ABS+PC with textured finish
Dimensions
116 × 16 × 75 mm (H×D×W)
Weight
120 g
Warranty
Manufacturer warranty under ZKTeco's terms: 1 year. How claims work
Product attributes and shipping details
Brand

ZKTeco

Verification

Card

Connectivity

Wiegand, RS-485

IP Rating

IP65

Environment

Indoor/Outdoor

Card Technology

125 kHz EM, 13.56 MHz MIFARE

Output

Wiegand, Wiegand + RS485

Downloads

Documentation

  • ZKTeco KR500 Series datasheetPublicDatasheet · Family · d1agmp9y4cki1i.cloudfront.net
    Download
  • ZKTeco KR500 Series product pagePublicOnline specifications · Family · zkteco.in
    View official page

Series documents can differ from your exact model. Report a wrong or missing file

Works with this product

Other models and upgrades

Questions about this product

Does the KR503 work on its own?

No. It is a reader and needs a controller behind it.

Which cards does it read?

E versions read 125 kHz ID cards at up to 10 cm; M versions read 13.56 MHz MIFARE S50/S70 cards at up to 5 cm.

Can it be fitted outdoors?

Yes. It is IP65 rated and works from -20 to 65 °C.

Which ZKTeco controllers does the RS485 version connect to?

InBio160, InBio260 and InBio460.

What power does it need?

6 to 14 V DC at up to 70 mA.

Ask about this modelSetup, compatibility, what is in the box
Downloads

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From ₹3,476incl. GST