Lumidigm M311 Multispectral Fingerprint Scanner

Lumidigm M311 is a stand-alone biometrics reader that can easily be attached to a host PC or intelligent controller via a standard USB cable.

Lumidigm M311 (M31x)


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  • Multispectral fingerprint scanner produces 20% more reliable images, reduces problems with user enrollment and matching.
  • Simultaneously reads the surface and subsurface to capture clear & clean images, maintains performance even in rain, cold, dry and hot environments.
  • Strong liveness detection protects against fake and spoof fingerprints, top-ranked MINEX III algorithm delivers accurate 1:1 matching and 1:N searches up to 5,000 users.

Supported Software

A scalable, reliable and high performing biometric identification solution for seamless integration.

Fingerprint SDK

Zero learning curve for developers. No biometric programming experience required. Get access to sample codes in multiple languages including C/C++, C#.NET, Java etc.


Computer Logon

Logon to Windows, Domain, Websites and Applications using fingerprints & create a ”password free” environment. Enterprise Password Management with Seamless Interface to Active Directory.


Lumidigm M311 Description

Lumidigm’s word-class multi-spectral imaging technology has been used in M311 Desktop Scanner. M311 is a high-performing stand-alone biometric reader. It connects to a host Personal Computer or any other intelligent controlling device using a standard USB cable.

M311 is easy to install and operate. It can swiftly and consistently scan and deliver templates or 500 dpi images of high quality to the Personal Computer or intelligent controller it has been connected to. the M301 reader can be configured to support multiple modes of operation. Enrollment of users and their verification are possible using the same device.

advanced architecture and well-integrated design gives M311 the capability to deliver consistently with accuracy. In addition, M311 Desktop Scanner has high-speed data capture. The M311 thus delivers high speed scanning with consistent accuracy. The M311 works with a mere tapping of the finger on the device which authenticates accurately and with consistency. This makes M311 one of the best-performing scanners in the industry today.

The field trials for M311 were conducted rigorously in extreme environments among users which were expected to demand the maximum ruggedness from the scanner. Where the conventional technologies fail to meet the high demands of the users under tough operating environments, Mercury’s patented multi-spectral imaging products such as the M301 have delivered consistent high quality results. Mercury has consistently left its peers behind in matching accuracy and image quality in field trials prior to its commercial release.

Lumidigm M311 Features

Lumidigm multispectral fingerprint sensors unleash the subsurface fingerprint to increase biometric performance and make your application more secure and reliable. The Lumidigm sensor returns superior images on anyone, anytime, in any environment.

  • ƒEliminates failure to enroll and failure to acquire headaches
  • The industry’s best fingerprint images
  • Protects against fake and spoof fingerprints
  • Enables high throughput
  • Maintains performance in rain, cold, dry and hot environments
  • Requires minimal maintenance
  • Dramatically reduces cost of system ownership and accelerates return on investment

Lumidigm M311 Specifications

Technology Patented Lumidigm optical multispectral imaging
Image resolution / bit depth 500 dpi / 8-bit, 256 grayscale
Platen area 17.4 x 13.9 mm (rectangular), uncoated
Image out ANSI 381 compliant
Template out ANSI 378 compliant
Score or verification (1:1) Requires ANSI 378 template input
Identification (1:N) Uses ANSI 378 templates as input
Latent protection Included
Verification mode (1:1) Unlimited
Identification mode (1:N) Up to 10,000 users per group, unlimited groups
Finger placement to image 350 ms (typical)
Finger placement to template / score 400-600 ms (typical)
Finger placement to identification 500-700 ms — 1,000 users
Temperature (operating) 0 to 60°C
Humidity 0–95% RH non-condensing

Ingress protection at platen IP65
ESD Immunity IEC 61000-4-2 Level 4+/-15 kV Air
USB 2.0 480 Mbps high-speed
Operating systems supported Windows 8 / 8 Embedded (32/64-bit)
Windows 7 / 7 Embedded (32/64-bit)
Windows XP / XP Embedded
Linux (Intel 32-bit and 64-bit)
Encryption Encrypted video for privacy/playback protection
Supply current — operational +5 VDC 225 mA (peak)
Supply current — idle +5 VDC 100 mA (typical)
Interoperability ANSI 378, ISO 19794-2:2005, ANSI 381, ISO 19794-4:2005, NFIQ compliant, MINEX-certified algorithm
Device certifications CE, FCC Part 15 Class B, EN 60950, IEC 62471, RoHS, Certified support for thin clients
Interface High-speed USB 2.0 (480 Mbps)
Memory 64 MB free RAM
Operating system Supported OS required

The perfect fingerprint scanner for YOU!

Lumidigm M311 utilizes the same multispectral imaging technology deployed in M-Series sensor modules and is able to deliver the same world-class performance.

Renowned Technology

Close that frustrating performance gap and make security simple — without compromising on convenience. Lumidigm’s patented multispectral imaging technology is up to 20% more reliable than conventional biometric authentication technology because it leverages rich fingerprint data that lies beneath the skin. It works on everyone, everywhere.

Built for Business

Protect your bottom line. The M-Series fingerprint sensors extend the Lumidigm Advantage to your value-conscious enterprise while providing the durability and performance that you require. Enjoy all the benefits of multispectral imaging at a price that delivers a compelling return on investment.


Lumidigm fingerprint sensors enhance the throughput and accuracy of any application. High-quality images are captured by multispectral sensors even when fingerprint ridges are hard to distinguish due to genetics, age, dirt, finger placement, or environmental conditions. Lumidigm sensors can easily enroll and verify ALL people — including that 2-5% of the population with “problem fingerprints” that fail to enroll on conventional sensors. The Lumidigm advantage increases return on investment and user satisfaction by eliminating these enrollment problems.

Fast and Reliable

No fingerprint sensor provides the speed and reliability available from the Lumidigm M-Series. A good biometric authentication solution makes life simpler, and the M-Series exceeds that challenge. Convenient, lightning-fast and easy to use, the M-Series fingerprint sensors authenticate on the first try, no matter who you are or what the weather is doing. The M-Series facilitates workflow and finally makes biometric authentication a practical reality.

Image quality

The accuracy and reliability of any fingerprint biometric is dependent on the image quality of the print itself. Lumidigm’s patented multispectral imaging system uses multiple wavelengths of light to capture an image of both a person’s external fingerprint and their identical “internal fingerprint” — the foundational capillary bed. Even if the external print is damaged or obscured, multispectral imaging uses the internal print data to ensure clear, clean images of anyone in any environment. Good images enable good biometric performance, which lowers the overall lifetime costs of system ownership by reducing management oversight, workarounds and frustrated users.

Liveness detection

Lumidigm provides the biometric industry’s best liveness detection technology to protect against fake and spoof fingerprints. Only Lumidigm continually enhances its detection capability and provides spoof updates to contain risk and help future-proof your investment. Lumidigm is committed to providing the most secure sensors available.

Lumidigm M311 Benefits

Patented multispectral imaging is the most secure, convenient and reliable fingerprint authentication technology on the market today. Only available in Lumidigm® products and solutions, multispectral imaging can enroll and verify everyone, every time, in any environmental condition.

Lumidigm® multispectral imaging is a sophisticated technology specifically developed to overcome the fingerprint capture problems found with conventional imaging systems. This more-effective technology is based on the use of multiple spectrums of light and advanced optical techniques to extract unique fingerprint characteristics from both the surface and subsurface of the skin. That subsurface capability is important because the fingerprint ridges seen on the surface of the finger have their foundation beneath the surface of the skin, in the capillary beds and other sub-dermal structures.

This enhanced data capture mitigates traditional system vulnerabilities to common environmental and demographic conditions:

Dry conditions

Dry fingertips are common, caused by anything from climate conditions or natural skin characteristics to frequent hand-washing or air travel. Multispectral imaging technology captures high-quality images even when fingers are dry.

Diverse demographics

Biometrics work because people are unique — and yet diverse user populations are difficult for many fingerprint biometrics systems to handle. Multispectral imaging can authenticate anyone, no matter what their age, ethnicity, job or lifestyle.

Wet conditions

Moisture is a fairly common real world condition. Some environments are naturally damp, due to climate (London) or setting (a spa). Some people have moist hands. Multispectral imaging technology captures high-quality images even in wet conditions.

Rugged conditions

People don’t have time to wash and lotion their hands when they use a fingerprint sensor. And yet other technologies require just that to meet performance requirements. Multispectral sensors take people as they are — at the office, construction site, or agricultural field.

With multispectral imaging, these problems are solved. In major large-scale programs, pilot tests, field trials and evaluations, Lumidigm® multispectral imaging technology has proven to be the best technology in the biometrics industry.

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Just Some of Our Happy Clients

You have been great. We purchased biometric readers from Bayometric based on price. We were contacted by Bayometric to insure the readers would meet our needs. Our order was received promptly without issue. I would purchase from Bayometric again without hesitation.- Ben Wing, Rockiingham County

Success Stories

Bayometric’s tried and trusted fingerprint identification technology has been seamlessly incorporated into various existing security environments, providing unmatched security solutions to customers in different verticals world-over.

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All our products come with one year warranty. For items within the warranty period, our policy is simple and uncomplicated.

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