ASSA ABLOY SMARTair i-Reader R4N Slim – MIFARE RFID Wall Reader with Openow Mobile Access
The ASSA ABLOY SMARTair i-Reader R4N Slim is a professional wall-mounted RFID reader designed for use with automated access points such as electric doors, gates, turnstiles, barriers and lift control systems. The reader forms part of the SMARTair access control ecosystem and enables secure credential-based access using RFID cards, fobs or smartphone credentials.
This model (S4BR2Slim1) supports MIFARE contactless credentials and operates within SMARTair management architectures including Update-on-Card and Openow mobile credential systems. The reader connects to a relay/control board that activates electromechanical locking devices such as electric strikes, electromagnetic locks or automated door operators.
The slim reader housing is suitable for installations where a compact and modern access control interface is required while maintaining the full functionality of the SMARTair system.
For an overview of the SMARTair platform see the SMARTair Wireless Access Control Overview
Usually ships in 30-35 business days.
Designed for professional access control environments including offices, education campuses, healthcare facilities and commercial buildings.
Key Features
- SMARTair slim RFID wall reader for automated access points.
- Supports MIFARE RFID credentials (13.56 MHz).
- Compatible with Openow smartphone credentials (Bluetooth Low Energy).
- Operates within SMARTair Update-on-Card access control architecture.
- Upgradeable to SMARTair Wireless Online installations.
- Designed for automated doors, turnstiles, barriers and elevators.
- Encrypted communication between reader and relay control board.
- Upgradeable firmware for system expansion.
- LED indicators and audible buzzer for status notifications.
- Configurable access modes including passage mode and double-user authentication.
Technical Overview – SMARTair i-reader
Dimensions
Access Methods
-
RFID Credential
MIFARE Card / Tag 
Mobile Access
Openow Smartphone
System Capacity & Access Logic
- Normal mode: approx. 3,000 users.
- Extended mode: approx. 6,500 users.
- High traffic mode: unlimited users organised into 48 permission groups.
- Event log capacity: approx. 1,200 events.
- Supports configurable door open times from 1 to 240 seconds.
Time Scheduling & Automation
- 30 programmable time zones.
- 5 time periods per zone.
- 365-day holiday calendar.
- Automatic daylight saving adjustment.
- Clock and calendar retained for approx. 8 hours during power loss.
Power Supply & Electrical Requirements
- External power supply required.
- Operating voltage: 12-24 VAC / VDC.
- Max power consumption approx. 300mA @12V.
- Powered through SMARTair relay/control board.
- No internal battery.
- No mechanical override key applicable.
Environmental Performance
- Exterior rating: IP56.
- Impact protection: IK09.
- Operating temperature: −20°C to +70°C.
- Humidity tolerance up to 85% without condensation.
Variants
- S4BR2D0 – UOC / Openow system without relay output.
- S4BR2D1 – UOC / Openow system with single relay output.
SMARTair is the electronic access control platform that manages locks, readers, users, credentials and access permissions across a building.
Openow is the mobile credential technology within SMARTair that allows smartphones to act as digital keys using Bluetooth Low Energy (BLE).
- SMARTair = access control system.
- Openow = smartphone credential technology.
- Mobile credentials are issued and managed through SMARTair software.
Update-on-Card (UOC) is a SMARTair system architecture where access permissions are carried by the user's RFID credential.
- User permissions are written to the card using SMARTair software.
- When the card is presented to a reader, updates are transferred to the lock.
- Events can also be collected through update points.
This architecture allows access control systems to operate without constant network connectivity.
SMARTair supports multiple system architectures depending on the level of control required.
- Update-on-Card – access permissions travel with the RFID card and update locks when presented.
- Wireless Online – locks communicate with the SMARTair server through wireless hubs for real-time updates and monitoring.
Wireless Online systems allow remote control of doors and immediate credential updates across the installation.
SMARTair hardware designed for outdoor use is engineered for demanding environments and may carry environmental protection ratings such as IP56 or IP68.
- Always follow manufacturer installation orientation requirements.
- Ensure weather seals are correctly installed.
- Avoid leaving devices open or exposed unnecessarily.
Correct installation ensures the environmental protection rating is maintained.
MIFARE and HID iCLASS are two different RFID credential technologies used in electronic access control systems.
- MIFARE – widely used open RFID standard commonly used in commercial access systems.
- HID iCLASS – proprietary credential platform used in many enterprise security systems.
The reader technology must match the credentials used in the building's access control system.
SMARTair wall readers are available in versions with or without relay outputs.
- No Relay – the reader only identifies credentials and sends data to another access controller.
- 1 Relay – the reader can directly activate an electric strike, magnetic lock or automated door.
In most standalone access control installations, the 1 relay version is required to operate the locking hardware.
ASSA ABLOY branded products purchased new in Australia from authorised resellers are covered against defects in materials and workmanship for:
- Mechanical components: 10 years
- Electrical and electronic components: 5 years (excluding batteries)
- Cylinders and keys: 3 years
SMARTair i-Reader Brochure
SMARTair i-Reader Datasheet
SMARTair System Information Guide
ASSA ABLOY Warranty Overview
ASSA ABLOY branded products sold in Australia are covered by manufacturer warranties issued by ASSA ABLOY Australia Pty Ltd. Warranty coverage varies depending on mechanical components, electronic components, cylinders and finish categories.
This overview summarises the structure of ASSA ABLOY warranty coverage. Full terms, exclusions and claim procedures are set out in the official ASSA ABLOY Warranty document.
Warranty Periods Summary
Finish & Material Notes
- Stainless steel does not mean stain-free. Tea staining is not covered where cleaning and maintenance guidelines have not been followed.
- Cosmetic, decorative and appearance damage is not covered.
- Battery failure or battery leakage damage is not covered.
What the Warranty Covers
- Defects in material and workmanship within the applicable period.
- Assessment by ASSA ABLOY to determine repair, replacement with the same or closest equivalent product, or refund of purchase price.
- Remedy determined at ASSA ABLOY’s discretion.
Common Exclusions
- Normal wear and tear.
- Misuse, abuse or installation outside published technical specifications.
- Improper maintenance or neglect.
- Unauthorised modification or repair.
- Use of non-genuine ASSA ABLOY parts or substitute components.
- Exposure to corrosive environments including coastal air, salt spray, chemicals, contamination or high humidity.
- Removal, refitment, freight or labour charges.
- Second-hand or imported products not sold through authorised Australian channels.
Warranty Claim Process
- Retain proof of original purchase.
- Return the product to the original authorised retailer where applicable.
- If claiming directly, obtain a case number before returning goods.
- Securely package returned goods and clearly reference the case number.
- Warranty assessment determines repair, replacement or refund.
Australian Consumer Law
ASSA ABLOY warranties operate in addition to rights available under the Australian Consumer Law. Goods come with guarantees that cannot be excluded. Customers may be entitled to a replacement or refund for a major failure and compensation for reasonably foreseeable loss or damage.
Where a product fails to meet acceptable quality standards and the failure does not amount to a major failure, the customer is entitled to repair or replacement.
