ViRDI VS-R20D - Slim RFID Card Reader (IP65)
The ViRDI VS-R20D is an effective RFID card reader widely used in time attendance and access control systems. It supports both EM and MIFARE cards, communicates over Wiegand and RS485, and is IP65 rated for indoor or covered outdoor use. The slim 11mm profile makes it easy to install on door frames, gates and turnstiles.
Technical Specifications
| Item | ViRDI VS-R20D |
| Type | RFID |
| Weatherproof | IP65 |
| Communication | Wiegand, RS485 |
| Card | EM, MIFARE |
| Dimensions | 70 x 124 x 11 mm |
Frequently Asked Questions - ViRDI VS-R20D
What kind of cards does the ViRDI VS-R20D support?
The VS-R20D supports both EM (125 kHz) and MIFARE (13.56 MHz) RFID cards - covering the two most common card technologies used for office access control and time attendance in India. This makes it a good choice for sites that mix card types or need to migrate from EM to MIFARE without changing the reader.
Can the VS-R20D be installed outdoors?
Yes. The VS-R20D is IP65 rated, which means it is protected against dust ingress and against water jets from any direction - so it can be installed outdoors on door frames, gates and turnstiles under a normal eave or canopy. For exposed environments with direct heavy rain, a small weather shield is recommended.
What communication interfaces does the reader support?
The VS-R20D supports both Wiegand and RS485 outputs. Wiegand allows it to be paired with virtually any access controller in the market, including HID, Honeywell, ViRDI's own controllers and standalone door modules. RS485 enables longer cable runs and bidirectional communication where supported by the controller.
Where is the VS-R20D typically deployed?
Typical deployments include office entry doors, factory gates, building lobbies, lift access, parking turnstiles, time attendance points and warehouse entry / exit. The slim 11mm form factor and 70mm width allow it to fit on narrow door frames where larger biometric units do not.
Can the VS-R20D be used with biometric attendance software?
Yes. The reader can serve as a card-only credential point in a wider biometric or card-based time attendance system, feeding events to a ViRDI controller, a third-party access controller or any attendance software that consumes Wiegand or RS485 swipes. Cybernetics provides full integration including software, controllers and end-user reports.
Where can I buy the ViRDI VS-R20D in India?
Cybernetics Software Pvt. Ltd., Pune supplies the ViRDI VS-R20D card reader along with ViRDI access control panels, time attendance software, EM / MIFARE cards and installation services pan-India - with on-site support, configuration and warranty assistance.

