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The Ubiquiti Retrofit Reader is an access reader designed for use with the UniFi Access system. It allows connected doors to be unlocked using NFC cards, key fobs, Touch Pass, or the mobile app. Unlike standard readers, it supports communication over a 2-wire connection, allowing you to reuse the existing wiring already installed in the building. This greatly simplifies the modernization of legacy access control systems to UniFi Access. The device is made from UV-resistant materials and features an IP55 protection rating, making it suitable for both indoor and outdoor installations.
UniFi Access Reader
The offered product is an access reader designed for use with the UniFi Access system. It allows connected doors to be unlocked using NFC cards, key fobs, Apple Wallet / Google Wallet credentials, or the UniFi mobile app.


2-Wire Cable Connection
Unlike standard readers, the Retrofit Reader can be connected using a 2-wire cable. This allows it to be used in locations where 2-wire wiring has already been installed. It significantly simplifies modernization projects in buildings that previously used an access control system.
Suitable for Indoor and Outdoor Use
The device features an IP55 protection rating and can be used both indoors and outdoors. The reader can also be installed in locations such as production halls or warehouses, where it may be exposed to dust and airborne particles.

Specifications
| Ubiquiti UA-Retrofit-Reader-B | |
| Overivew | |
|---|---|
| Dimensions | 117 x 45 x 13.3 mm (4.6 x 1.8 x 0.5") |
| UniFi Application Suite | Access |
| NFC Card & Keyfob Access | Yes |
| Apple/Google Wallet | Yes |
| Mobile Unlock | Yes |
| Weatherproofing | IP55 |
| NDAA Compliant | Yes |
| Mechanical | |
| Weight | 82 g (2.9 oz) |
| Enclosure Material | Polycarbonate, aluminum alloy |
| Mount Material | Stainless steel |
| Mounting | Wall, gang-box mount |
| Hardware | |
| Indoor and Outdoor Use | Yes |
| Connectivity |
RS-485 BLE 4.1 NFC |
| Security | OSDP v2 |
| Power Method | 12 V DC |
| Max. Power Consumption | 2.5 W |
| Supported Voltage Range | 12 V DC |
| ESD/EMP Protection | Air: ± 15kV, contact: ± 8kV |
| Speaker | Yes (0.7 W) |
| LEDs | R/G/B/W |
| Button | (1) Factory reset |
| Frequency | 13.56 MHz |
| NFC Read Range | < 30 mm (1.18'') |
| NFC Technology |
ISO 14443A, 14443B, 15693 NFC Tag 1,2,3,4,5 MIFARE Classic MIFARE Plus MIFARE Ultralight MIFARE DESFire |
| Ambient Operating Temperature | -30 to 50° C (-22 to 122° F) |
| Ambient Operating Humidity | 5 to 90% noncondensing |
| Software | |
| Management Application | Access |





