ZKTeco KR902S Access Control Reader — Wiegand only
KR902S RFID access reader, wiegand only, with a physical keypad for card/password input. Match the actual credential and controller interface.
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Overview
The ZKTeco KR902S is an RFID access-control reader for presenting credentials to a compatible controller or standalone access device. It reads supported 125 kHz ID and 13.56 MHz IC credentials, allowing the installation to accommodate more than one card technology. The reader supplies identification data; it does not by itself establish the access permissions or provide the complete hardware needed to operate a door.
A 12-key physical keypad adds password input alongside card presentation. The controller and its configuration determine the permitted authentication workflow. Its documented dimensions are 124 × 77 × 20.9 mm, and it is intended for mounting on a compatible single-gang or European gang box, or a suitable flat surface. That mechanical format is a useful selection difference within the KR900 range, especially when replacing a reader on an existing frame or back box. Match the mounting arrangement and the actual credential type before choosing the model.
This is the Wiegand-only listing. The manufacturer documents selectable W34 or W66 output, with W34 as the default; those formats need to match the receiving controller. A 9–12 V DC supply is listed for the family, together with LED status indications, a buzzer and a tamper switch. The enclosure is rated IP65, with indoor and outdoor use documented by the manufacturer. Installation still needs appropriate cabling, supply and controller integration. Specify the exact communication version and any separate controller, lock and power components as part of the complete access-control design.
Applications & Use Cases
- Controller-based credential entry: Present supported cards to a compatible access system over the selected reader interface. The controller must implement the access permissions and door operation.
- Card and password entry: Use the physical keypad and card reader in a controller-supported authentication policy where password input is needed as well as card presentation.
Product FAQs
Will this reader operate a door without an access controller?
It is a reader for a compatible access-control system. Permissions, lock switching and the required external door hardware must be provided by that system.
Can I connect it to a third-party controller?
The manufacturer describes Wiegand integration with third-party access devices. Confirm the supported Wiegand format, wiring and controller configuration rather than assuming universal compatibility.
Does support for 13.56 MHz prove it accepts every existing smart card?
No. Frequency is only one requirement. Match the actual credential technology and identifier handling required by the receiving system.
Can the keypad be used for a PIN-only access policy?
The reader provides password input, but the connected controller must support and be configured for the intended authentication policy.
Can this Wiegand-only listing be assumed to support RS485?
No. Wiegand-only and Wiegand-plus-RS485 are separate communication options. Specify the required version before ordering.
Specifications
| Manufacturer | ZKTeco |
|---|---|
| Model | KR902S |
| Configuration | Wiegand only |
| Manufacturer part number | AC03-KR92H-01 |
| Hardware | Physical Keypad: 12keys; RFID Module: ID & IC; Tamper Switch: Support |
| Authentication Method | Card / Password |
| Card Type | ID Card@125kHz & IC Card@13.56MHz (Standard) |
| Verification Method | ＜0.3s @ Card |
| Recognition Distance | ＜4cm @ Card |
| Communication | Wiegand output only; W34 / W66 selectable, default W34. RS485 is a separate communication option. |
| 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 |
| Working Temperature | -20℃ to 60℃ |
| Working Humidity | 10% - 90% RH (Non-condensing) |
| Dimension(L*W*H) | 124*77*20.9 mm |
| Gross Weight | 0.19 Kg |
| Net Weight | 0.16 Kg |
| Installation | Wall-mount (Compatible with Single gang box / European gang box) or flat surface mounting |
| Housing Material | ABS Plastic |
| Ingress Protection Rating | IP65 (water & dust proof ) |
| Certifications | ISO9001, ISO14001, CE, FCC, RoHS |
Downloads
Manufacturer documents and Royal Link product sheets. Check the publisher and configuration notes for each file. PDFs open in a new tab.
| Document | Type | Size | Updated / version | Action |
|---|---|---|---|---|
| PDFKR900 Series Datasheet 20250521ZKTeco | Datasheet | 1.19 MB | 2025-05-21 | Download |
| PDFZK KR900 Series User Manual 20250520ZKTeco | User manual | 868 KB | 2025-05-20 | Download |
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