Multi-Biometric and Palm Vein Attendance Machines: Face, Finger, Card and Palm Compared
Quick answer: A multi-biometric attendance machine lets people punch in with more than one method, for example face, fingerprint, card or password, and some models add palm vein. Choose multi-biometric when your staff have mixed conditions (clean and dirty hands, masks, large headcount) or when you want a backup if one method fails. For a small office with clean hands, a simple fingerprint or face machine is enough.
This guide explains what each method is good at, how to read capacity figures on product pages, and which kind of machine fits which workplace.
Biometric methods compared
| Method | Strength | Weakness |
|---|---|---|
| Fingerprint | Familiar, quick enrolment, widely supported | Struggles with worn, dry, wet or dirty fingers |
| Face | Touch-free, fast, good for large staff | Needs decent lighting; masks and helmets can affect it |
| Palm vein | Reads patterns beneath the skin; not affected by surface dirt or dry skin in the way fingerprints can be | Fewer models; larger or costlier machines |
| RFID card | Very quick and simple | Cards can be lent, so combine with biometrics where this matters |
| Password or PIN | Useful backup | Can be shared |
For a wider comparison, read our attendance machine buying guide. For dusty and outdoor workplaces, see the factory attendance guide.
How to read capacity figures
Product pages list capacity numbers, such as how many faces, fingerprints or cards a machine can hold, and how many attendance records it can store. These matter because they must be at least as big as your headcount and your record needs:
- Face capacity: The number of faces you can enrol.
- Fingerprint capacity: The number of fingerprints, remembering that each person usually registers more than one finger.
- Card capacity: How many cards can be registered.
- Record or log capacity: How many punches can be stored before older ones must be downloaded.
Examples from the NavKar range
The figures below are taken from each product page. Check the page for the full list and for any updates.
| Model | Methods listed | Capacities listed |
|---|---|---|
| SecureEye Palm Vein S-B20CB | Finger, face, palm, password, RFID card | Palm 500, face 500, fingerprint 5,000, password 1,000 |
| SecureEye Face Finger S-FB5K | Face, fingerprint, card, password | Face 1,000, fingerprint 5,000 |
| BIOMAX N-BM60W Pro | Fingerprint, face, card | Face 500, finger 2,000, card 2,000, logs 1,50,000 |
| ESSL AiFace Uranus | Face and fingerprint | Face 500, fingerprint 2,000, records 50,000 |
| SecureEye S-FB6K | Face and fingerprint, with desktop attendance software | See product page |
Which one suits your workplace?
- Small office, up to a few dozen staff: A face-and-finger machine with card backup is plenty.
- Mid-size office or school: A model with larger face and fingerprint capacity and Wi-Fi or network connection, so data can be pulled to software easily.
- Factory or workshop: Face or palm vein plus card, because fingerprints may be unreliable with oil and dust.
- Clinic or lab: Touch-free methods are attractive where hygiene matters.
- Large campus: Several machines at entry points, with data sent to one software system.
Connectivity and software
Check how the machine sends data: USB drive, LAN (TCP/IP), Wi-Fi or cloud. Decide where reports will be generated, and whether the software supports your shift rules, overtime and leave. Some machines include or work with desktop attendance software; confirm what is included before you buy.
Installation and enrolment tips
- Mount the machine at a comfortable height, away from direct sun.
- Enrol each person in normal conditions, with several fingers or multiple face angles where the machine allows.
- Keep a backup method such as card or password for failed reads.
- Back up attendance data regularly.
- Protect the machine with a power backup if power cuts are common.
Frequently asked questions
What is palm vein recognition?
It identifies a person by the pattern of veins inside the palm, read with infrared light. Because the pattern is under the skin, it is less affected by surface dirt or dry skin.
Is face recognition better than fingerprint?
Neither is better in every case. Face is touch-free and fast; fingerprint is familiar and reliable on clean hands. A machine that offers both gives you flexibility.
How many users can a machine hold?
It depends on the model. Check the capacity figures on the product page and choose a machine with room above your current headcount.
Do I need a computer to use it?
Some machines work on their own and export data by USB. Others connect to software on a computer or the cloud. Check the product description for details.
Shop Attendance Machines at NavKar Systems
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