Soyal AR-721H — Specs & Hong Kong Installation
Classic Soyal all-in-one controller/reader for one door — 1,024 users, RS-485 to 701.
Best for: Single shop / unit doors
Product overview
The Soyal AR-721H is a door controller + reader from the AR All-in-one series, selected by Swan CCTV for professional projects across Hong Kong and Macau. Classic Soyal all-in-one controller/reader for one door — 1,024 users, RS-485 to 701. It is best suited for single shop / unit doors.
As a control panel, AR-721H sits at the centre of an intrusion system: it receives signals from door/window contacts, motion detectors, and wireless sensors, then reports events to keypads, apps, and (where configured) a monitoring centre. Swan CCTV programs partitions, user codes, entry/exit delays, and communicator paths to match how Hong Kong homes and shops are actually used — for example separate arming for a ground-floor shop and upstairs flat.
Typical Hong Kong deployments include compact apartments with metal gates and aluminium windows, village houses needing outdoor beams, and small offices that need silent night-arming with daytime partial protection. We supply genuine Soyal hardware, complete site survey, neat cabling or wireless placement, and commissioning with your preferred monitoring or self-monitoring setup.
Compared with generic online product listings, this page reflects how Swan CCTV actually deploys AR-721H on local sites: we confirm power availability, building management rules, false-alarm risk, and monitoring options before quoting. Request a site survey if you need a tailored bill of materials.

Key features
- Stand-alone or networked to 701ServerSQL
- Anti-passback with a second Wiegand exit reader
- Duress code, auto-open time zones, holidays
- The model most Hong Kong 工廈 electricians already know
- Professional supply and installation by Swan CCTV in Hong Kong
- Configured and tested on-site (not leave-in-box DIY)
- Documentation and user training included with installation packages
Compatibility
- Designed for use within Soyal AR All-in-one ecosystems and compatible accessories stocked by Swan CCTV.
- Works with wired zone expanders and/or wireless receivers as listed in the technical specifications.
- Supports professional keypads and optional IP/cellular communicators for monitoring-centre reporting.
- Can be combined with door contacts, PIRs, glass-break sensors, and smoke interfaces commonly used in Hong Kong fit-outs.
- Often quoted together with: AR-723-U, AR-725-E, AR-837-E, AR-716-E16.
Manuals, datasheets & resources
Technical specifications
| RFID | 125 kHz EM and/or 13.56 MHz Mifare (ISO 14443A) |
|---|---|
| Users | 1,024 (M4/M8 network modes); lift 32 floors |
| Event log | 1,100 (stored in flash) |
| Read range | 10–18 cm (125 kHz) / 3–8 cm (13.56 MHz) |
| Access modes | Card only / card or PIN / card + PIN |
| I/O | Door relay 2 A 12 V (0–600 s); egress + door sensor; alarm OC; WG 26/34 |
| Communication | RS-485 9600 bps; optional AR-727-CM to TCP/IP |
| Power / size | 9–16 V DC, < 3 W; 111 × 77 × 26 mm; ~100 g ABS |
| Environment | −20 °C to +70 °C; tamper switch; watchdog + RTC |
| Brand | Soyal |
| Series | AR All-in-one |
| Category | Door Controller + Reader |
| Local support | Supply, install, program, and after-sales by Swan CCTV (Hong Kong) |
| Typical use | Single shop / unit doors |
Hong Kong / local context
Hong Kong properties often combine aluminium windows, metal gates, compact rooms, and mixed residential-commercial use. Swan CCTV selects AR-721H when its zone capacity, detection pattern, or video performance matches those constraints.
For village houses and duplexes, partitioned arming helps protect ground-floor shops overnight while living areas stay flexible.
In multi-tenant buildings, we coordinate with management offices on cable trays, riser access, and approved working hours.
Ask Swan CCTV for a Hong Kong site survey if you are comparing AR-721H with other Soyal models for your layout.
Installation notes
- Swan CCTV provides supply, mounting, programming, and testing for AR-721H as part of a complete Soyal system.
- A short site survey confirms cable routes, Wi-Fi/4G signal, power points, and building management constraints before installation day.
- Panel location is usually a hidden cupboard or meter area with ventilation and 220V power for the transformer or PSU.
- We program entry/exit delays for typical HK metal gates and lobby doors, and train users on arming/disarming and emergency codes.
- Optional communicator setup includes testing alarm signals to the monitoring centre or your phone app.
- Warranty and manufacturer support terms follow the official Soyal policy; Swan CCTV provides local labour warranty on our workmanship as stated in your quotation.
All Soyal products
View models & specsCompare related products from the catalog. Also see our brand guides and wired panels & accessories.

Soyal · AR Readers
AR-723-U
Palm-size proximity reader for exit, anti-passback or tight door frames.
View specs
Soyal · AR E-series
AR-725-E
Illuminated touch-panel controller with TCP/IP, 16,000 users and two-door I/O.
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Soyal · AR E-series
AR-837-E
IP65 two-door network controller with built-in HTTP server — 16,000 users.
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Soyal · AR Multi-door
AR-716-E16
Indoor 16-door IP panel — two RS-485 reader buses plus two Wiegand ports.
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Soyal · AR Networking
AR-727-CM
Two-channel converter so existing 721H / 323 buses can join 701ServerSQL over LAN.
View specs