Iris Modules
MD31 Iris Recognition Module
Compact USB Iris Module for Access Control Integration
The MD31 is a compact, high-performance iris recognition module engineered for seamless OEM integration into access control systems, smart locks, and secure terminals. Powered by HOMSH's proprietary PhaseIris 3.0 algorithm, it delivers sub-second identification with a false acceptance rate of 10⁻⁷ — making it one of the most accurate biometric modules available at this size. The USB 2.0 interface enables plug-and-play connectivity with standard controllers, while the onboard processor handles all iris capture, encoding, and matching locally — no cloud connection required. With support for up to 10,000 enrolled users and an operating range of 370-500mm, the MD31 is built for real-world deployment in offices, data centers, government facilities, and residential buildings.
Dimensions
80 x 24 x 25 mm
Interface
USB 2.0
Recognition
< 1 second
FAR
10⁻⁷
Starting from
$235 / unit (25-49 qty)
Key Features
- Full on-device processing — no cloud or server dependency
- USB 2.0 plug-and-play integration with SDK provided
- 10⁻⁷ FAR — exceeds fingerprint accuracy by 100x
- Up to 10,000 user templates stored locally
- 850nm NIR imaging works in 0-6,000 Lux conditions
- IEC 62471 certified — safe for prolonged eye exposure
- Compact 80 x 24 x 25 mm fits inside standard lock housings
- Supports both single-eye and dual-eye identification
Applications
Why Choose the MD31
Military-Grade Security
With a false acceptance rate of 10⁻⁷, iris recognition is 100x more accurate than fingerprint and cannot be spoofed with photos or replicas.
Sub-Second Speed
Recognition completes in under one second with 10,000 templates/second comparison throughput, enabling smooth user experience even at scale.
Easy OEM Integration
USB 2.0 interface with comprehensive SDK, sample code, and technical support. Drop-in module design fits 80 x 24 x 25 mm.
Technical Specifications
| Dimensions | 80 x 24 x 25 mm |
| Weight | 200g |
| Interface | USB 2.0 |
| Power Consumption | < 4W |
| Working Distance | 370-500mm (optional VCM lens) |
| Identification | Single eye / both eyes |
| Imaging Band | 850nm NIR |
| Resolution | 640 x 480 |
| Frame Rate | 25 fps |
| Encoding Speed | 20 pictures/second |
| Comparison Speed | 10,000 templates/second |
| FAR | 10⁻⁷ |
| FRR | 10⁻³ |
| Storage Capacity | 500 / 1K / 2K / 5K / 10K users |
| Operating Temperature | 0-45°C (standard), -10-55°C (extended) |
| Humidity | 0-93% RH |
| Ambient Light | 0-6,000 Lux |
| Recognition Time | < 1 second |
| Algorithm | PhaseIris 3.0 |
| Certifications | ISO9001, IEC 62471, GB/T20979-2019 |
Integration Guide
Wiring & Mounting
Connect the MD31 via the standard USB 2.0 Type-A cable to your host controller or SBC. The module draws under 4W and is bus-powered — no external power supply needed. Mount using the M2 screw holes on the rear housing.
SDK & Development
The SDK supports Windows (7/10/11), Linux (ARM/x86), and Android. Libraries are provided in C, C++, Java, and Python. Sample code covers enrollment, 1:1 verification, 1:N identification, and template management.
Protocol & Communication
Communication uses a simple serial-over-USB protocol with documented command/response packets. Integration with RS485 access controllers is supported via a USB-to-serial bridge. OSDP compatibility available on request.
Volume Pricing
| Quantity | Unit Price |
|---|---|
| 1-4 units | $299 |
| 5-9 units | $269 |
| 10-24 units | $250 |
| 25-49 units | $235 |
| 50+ units | Contact Sales |
Integration Information
Interface
USB 2.0 connection with standard protocol support. SDK and API documentation provided with purchase.
Algorithm
Built-in PhaseIris 3.0 engine with on-device processing. No cloud connectivity required for identification.
Support
Technical integration support included. Contact our engineering team for custom firmware and feature requests.
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