KR900 Series

Multi-tech RFID Reader

KR900 series is a high-security RFID reader, that supports 125KHz and 13.56MHz cards. This series features tamper-proof alarm functionality and offer two communication modes: Wiegand only or Wiegand & RS485. The RS485 communication protocol supports ZK-RS485, making it compatible with ZKTeco access control standalone devices and controllers. Also, Wiegand communication protocols also enable integration with third-party access control devices.

Available in six models, each reader offers distinct features including optional physical keypads and flexible authentication methods. All models support ID cards at 125kHz and IC cards at 13.56MHz, with a verification speed under 0.3 seconds and recognition distance of up to 4cm. They also feature a tamper switch, indicators, and an audio buzzer.

The KR900 series installation is compatible with:

  • Mullion mount (KR901, KR902).
  • Single gang and European gang box (KR901S, KR902S with back box).
  • Asian gang box (KR903, KR904).
  • Flat surface mount (all models).

  • Support multi-frequency 125kHz ID card and 13.56MHz IC card, including DESFire EV1 / EV2 / EV3 and NTAG

  • Two communication options: Wiegand only or Wiegand + RS485 (ZK-RS485).

  • Tamper detection and alarm.

  • Multiple authentication methods: card or card with PIN code.

  • Achieved lP65 protection rating with dustproof and waterproof.

Model

KR901

KR901S

KR902

KR902S

KR903

KR904

Hardware

Physical Keypad:

N/A

RFID Module:

ID & IC

Tamper Switch:

Support

Physical Keypad:

N/A

RFID Module:

ID & IC

Tamper Switch

Physical Keypad:

12keys

RFID Module:

ID & IC

Tamper Switch:

Support

Physical Keypad:

12keys

RFID Module:

ID & IC

Tamper Switch:

Support

Physical Keypad:

N/A

RFID Module:

ID & IC

Tamper Switch:

Support

Physical Keypad:

12keys

RFID Module:

ID & IC

Tamper Switch:

Support

Authentication

Method

Card

Card

Card / Password

Card / Password

Card

Card / Password

Card Type

ID Card@125kHz & IC Card@13.56MHz (Standard)

Verification

Speed

＜0.3s @ Card

Recognition

Distance

＜4cm @ Card

Communication

Wiegand output only (W34 / 66) Or RS485 (ZK-RS485) & Wiegand output (W34 / 66)

Note: Support Wiegand format switching (Default: W34)

Visual Indicator

LED Indicators Power On:Blue = Standby

Status: Green = Verification successful Red = Verification failed

Audio Indicator

Buzzer

Tamper Switch

Support

Operating

Environment

Indoor / Outdoor

Power Supply

9V~12V DC

Operating

Temperature

-20℃ to 60℃

Operating

Humidity

10% - 90% RH (Non-condensing)

Dimensions

(L*W*H)

111*44.5*21mm

124*77*20.9mm

111*44.5*21.8mm

124*77*20.9mm

86*86*16.15mm

86*86*16.15mm

Gross Weight

0.16Kg

0.19Kg

0.16Kg

0.19Kg

0.17Kg

0.17Kg

Net Weight

0.13Kg

0.16Kg

0.13Kg

0.16Kg

0.14Kg

0.14Kg

Installation

Compatible

with mullion

mount or flat

surface

mounting

Wall-mount

(Compatible

with Single

gang box /

Eurpean gang

box)

or flat surface

mounting

Compatible

with mullion

mount or any

flat surface

mounting

Wall-mount

(Compatible

with Single

gang box /

European gang

box)

or flat surface

mounting

Wall-mount

(Compatible

with Asian gang

box)

or flat surface

mounting

Wall-mount

(Compatible

with Asian gang

box)

or flat surface

mounting

Housing

Material

ABS Plastic

Ingress

Protection

Rating

IP65 (water & dust proof )

Certifications

ISO9001, ISO14001, CE, FCC, RoHS

Factory ID

AC03-KR91H-01

  

AC03-KR91H-01

AC03-KR92H-01

AC03-KR92H-01

AC03-KR93H-01

KR900 Series_Datasheet_20250521

1.14 Mb Data Sheet
2025-05-21
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ZK_KR900 Series User Manual_20250520

0.83 Mb User Manual
2025-05-20
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ZK_KR900 Series_Qucik Start Guide_20250520

1.75 Mb Quick Start Guide
2025-05-20
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