Restroom Access

CTAS (Customer Toilet Access System) is a solution to restrict access to restrooms by providing contactless access verification through QR code technology. CTAS works with third-party POS or registry systems that generate QR Codes based on customer or visitor transactions. The QR code is used as a pass to access the restroom. CTAS will either allow or deny access based on the validity of the QR code.

CTAS helps businesses reduce their maintenance cost, improves customer experience, and minimize health risks.



The use of QR code technology enables contactless and quick access without worrying about long queues and long waiting time. Employees can use their own smartphones for easy access. Customers, on the other hand, can have access through the generated QR code on their receipts.


CTAS is a standalone system for fast deployment. No network and integration to POS are needed.

CTAS provides highly customizable firmware to match the QR code data format from the POS. Convenient configuration via web-based menu and Wi-Fi connectivity.



CTAS time restriction can increase business profit by managing overstaying customers. If the customers want to stay in the business premises longer, they will be prompted to purchase goods or services which will result in higher sales and revenues.


The limited toilet usage and access can ease the management of supplies and fixtures. Businesses can control excessive use of supplies like toilet papers, hand soaps, and alcohol, and can even prolong restroom fixtures, thus minimizing maintenance costs.


CTAS minimizes the risk of virus transmission and prevention of disease not only through contactless access but through limited restroom usage. It eliminates unnecessary physical contact, especially in communal places.

EL702QR Reader

EL702QR Technical Parameter

Size (L*W*H)



Case: PC; Identify panel: Tempered Glass


Wiegand26, 34, RS485, RS232, USB, TCP/IP optional

Decoding Support

QR Code, one-dimensional code


Support 4-15V wide voltage input



Reading Directions

Camera centric slant 45°

Reading Speed


Reading Range


Reading Feature

auto-induction, beep hint

Light Source

with LED light source itself, anti-highlight interference

Application Environment


Humidity: 10%~90%

Operating System

Windows (XP, 7, 8, 10), Linux

Indicating Status Light

Red-Work, Green-Feedback, Light Green-Internet

Reading Range


Reading Card Type

EM or Mifare Card


Paper or Screen QR Code

Restore Factory Settings: Use sharp objects inserted into REST hole of QR code reader backside then release till the QR code reader automatically restarts.



CTAS Controller


* Samsung Exynos5422 Cortex™-A15 2Ghz and Cortex™-A7 Octa-core CPUs

* 2Gbyte LPDDR3 RAM PoP stacked

* Gigabit Ethernet port

* Size : 83 x 58 x 20 mm approx.(excluding cooler)

* Power: 5V/4A input

   • Wi-Fi

   • 8GB EMMC storage

   • Web Management Console



System Flow


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