Dual Biometric Reader with RFID Option

Multi-Biometric Reader

Duo combines face and palm vein authentication in one unit. With Duo, you can effortlessly verify who you are, with just a glance.

Handsfree Walk-through

Duo’s facial recognition modality offers a handsfree experience, recognizing on-coming objects within a distance of 8 ft / 2.5 m and authenticating them while moving in under a second – there is no need to even stop.

A wide authentication angle ensures quick and convenient facial authentication for people of different heights and is ADA compliant for use with wheelchairs.


Duo can be used in dual mode (face & palm vein) when a heightened level of security is required - or in single mode, when the users might be wearing e.g. a mask or gloves that limit the usage of one of the authentication methods.

Duo offers an RFID card reader option, Wiegand communication, and is compatible with any existing system lowering your initial investment. Designed for flexibility, the Duo can be mounted on the wall or a gate with its specially designed stand.

Unparalleled Security

Palm vein authentication is extremely reliable with a near zero false acceptance rate and the facial modality is capable of recognizing and rejecting spoofing attempts. All biometric templates are securely saved using AES 256 data encryption, and the readers are equipped with a tamper switch.

Biometric Technologies

Multi-Biometric Reader
CrucialTrak’s unique facial recognition technology offers the fastest and most advanced authentication technology, recognizing a user in a fraction of a second.

- Up to 2.5 m / 8 ft recognition distance
- Fast authentication in under a second
- Anti-spoofing facial recognition

Multi-Biometric Reader
Palm Vein
The highly reliable palm vein modality offers fast authentication while letting you hold your palm in a natural position over the reader.

- FAR 0.00001% means virtually zero false acceptance rate
- Anti-fraud liveliness detection


Ideal for implementing a biometric authentication solution in conjunction with a card-based system


Commercial Properties

Government Agencies

Educational Institutions

Medical Facilities


Model Name BACS™ Duo
CPU Intel Core i3
Memory / Storage 8 GB / 64 GB, 128 GB optional
Built in Display 3.5" LCD display / Round LED indicators
Optional Display HDMI monitor (FHD must be supported, mini DP socket)
Color Midnight Black
Operation Mode Face, Palm Vein, Optional built-in RFID (single or multi-mode)
Biometric Recognitions Face Palm Vein
Recognition Distance Up to 2.5 m / 8 ft 35 – 76 mm / 1.4 – 3 in
FAR / FRR of Algorithm 0.001 / 0.1 0.00001/0.01
Image Log Capacity 50,000 5,000
Encryption AES 256
Safety UL60950-1, EN60950-1
Speak Out Sound effect
Dimensions (W x D x H) 180 mm x 70 mm x 180 mm / 7.1 in x 2.7 in x 7.1 in
Weight 1 kg / 2.2 lb
Communications 10/100 Mbit Ethernet, Wiegand out, Relay
Face Image Enhancement WDR (Wide Dynamic Range) function
Event Log Capacity 1,000,000
Remote Control Built-in web server
Power 12 V DC / 3 A
Tamper Protection SPIP (Smart Personal Information Protection) feature (optional)
Proximity Sensor Optional
Languages English (customizing available)
Operating Temperature -20 – 70 °C / -4 – 158 °F
Operating Humidity Max 80 % (RH)
Storage Temperature -30 – 80 °C / -22 – 176 °F
Certifications CE, NRTL, TUV, FCC, KC, CB, NOM
Housing Materials Flame retardant ABS, Polycarbonate, Polypropylene
Management SW CruAMS (CrucialTrak Access Management System)
Connections 12p connector, Ethernet connector, USB 3.0 connector (debug), HDMI connector (debug)
Mounting Default wall mounting bracket
Options Lighting Panel

Product View

BACS™ Quattro


BACS™ Quattro Dimensions

User Guide

Facial Recognition

Facial Recognition Stand at a distance of 50–60 cm (19.6-23.6 in) from the product, and look at the face camera.   Adjust your face so it is parallel to the camera.   The face camera will recognize your face and the face mode icon will blink blue.

Palm Vein Recognition

Palm Vein Recognition Spread your fingers and place your hand perpendicularly to the palm vein sensor.   Align the center of your palm with the center of the sensor.   Then move your hand slowly and place it 3.5-7 cm (1.3-2.7 in) from the product.   The palm vein sensor will scan your palm and the mode icon will blink blue.   Remain still while your palm vein is being scanned.



File size: 306.98 KB | PDF

Duo Quick User Guide

File size: 3.77 MB | PDF

BACS™ Products