Technical Datasheet
MD31 Iris Recognition Module
Compact USB Iris Module for Access Control Integration
HOMSH
modules.homshtech.com

Overview
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.
Key Features
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 |
Applications
Volume Pricing (USD)
| Quantity | Unit Price |
|---|---|
| 1-4 units | $299 |
| 5-9 units | $269 |
| 10-24 units | $250 |
| 25-49 units | $235 |
| 50+ units | Contact Sales |
HOMSH Technology
Singapore
Sales Inquiry
sales@opticsiris.com
Website
modules.homshtech.com
Specifications subject to change without notice. Contact HOMSH for the latest product information.