Compact Fixed-Mount 1D/2D CMOS Scan Module with Automatic Induction, USB and RS-232 Connectivity for Kiosks, POS and Embedded Systems

The TEKLEAD T-E2 / TEK-E2-3189 is a compact fixed-mount 2D barcode scanning module designed for integration into kiosks, POS equipment, access-control terminals, vending machines, self-service systems and other embedded applications.

The 2D version uses a planar CMOS imaging sensor to decode common 1D and 2D barcodes, including QR Code, Data Matrix and PDF417.

It supports manual trigger, automatic induction and continuous scanning modes, allowing the scanner to operate inside unattended or hands-free equipment without requiring a conventional handheld scanner.

USB and RS-232 interface options make the T-E2 suitable for both modern computer-based installations and equipment that still relies on serial communication.

Important Model Identification

TEKLEAD's principal product information currently identifies this embedded scanner platform as:

T-E2 2D Embedded Automatic Induction Wired USB / COM / RS-232 Barcode Scanner

The reference TEK-E2-3189 is also associated with documentation for the T-E2/E2 scanning engine.

Because TEKLEAD offers both 1D CCD and 2D CMOS variants, NEOTECH® recommends verifying the exact 2D configuration before ordering.

This page focuses specifically on the 2D CMOS version.

Key Features

• Embedded fixed-mount barcode scanner
• 2D CMOS imaging technology
• Reads common 1D and 2D barcodes
• QR Code support
• Data Matrix support
• PDF417 support
• USB interface option
• RS-232 / COM interface option
• Manual trigger mode
• Automatic induction / sensing mode
• Continuous scanning mode
• Reads compatible barcodes from printed media
• Suitable for reading compatible codes from electronic screens
• Red aiming illumination
• White LED lighting
• Buzzer confirmation
• LED status indication
• 32-bit MCU
• Compact integration-oriented design
• 5V DC power platform
• Minimum 35% print contrast specification
• Manufacturer-rated IP54 or higher protection for the scanning module
• Designed for kiosks, POS, access control and self-service equipment

Technical Specifications

Brand: TEKLEAD
Model Family: T-E2 / E2
Reference: TEK-E2-3189
Product Type: Embedded / Fixed-Mount Barcode Scanner
Scanner Version: 2D CMOS

Scanning Technology: Planar CMOS image sensor

Processor: 32-bit MCU

Light Source:

• Red aiming light
• White LED illumination

Interfaces:

• USB
• RS-232 / COM

Interface configuration may vary by supplied version.

Power Supply: DC 5V ±5%

Trigger Modes:

• Manual trigger
• Automatic induction
• Continuous scanning

Prompt / Confirmation:

• Buzzer
• LED indicator

Minimum Print Contrast: 35%

Scanning Angles:

• Roll: approximately 35°
• Pitch: approximately 65°
• Yaw: approximately 65°

Weight: Approximately 50 g without cable

Operating Temperature: 0°C to 50°C

Storage Temperature: 0°C to 50°C according to the manufacturer's current published T-E2 specification

Operating Humidity: 5%–95%, non-condensing

Protection Rating: Manufacturer specifies IP54 or higher for the T-E2 platform

ESD Protection: Manufacturer specification up to 15 kV

Supported 1D Barcodes

The 2D T-E2 platform supports common linear barcode symbologies including:

• Codabar
• Code 11
• Code 39
• Code 93
• UPC
• EAN
• Code 128
• EAN-128 / GS1-128
• Interleaved 2 of 5
• Matrix 2 of 5
• MSI
• Standard 2 of 5

Individual symbologies and configuration settings should be verified where a specific barcode standard is essential to the application.

Supported 2D Barcodes

The 2D CMOS version supports major two-dimensional barcode formats including:

• QR Code
• Data Matrix
• PDF417

This makes the scanner useful for applications involving mobile tickets, QR-based identification, self-service transactions and other 2D-code workflows.

Automatic Induction Scanning

One of the key functions of the T-E2 is automatic induction scanning.

Instead of requiring the user to press a handheld scanner trigger, the module can detect a presented barcode and initiate scanning automatically when configured for sensing operation.

This can be useful for:

• Self-service kiosks
• Access-control terminals
• Ticket-validation equipment
• Vending machines
• Check-in terminals
• Automated counters
• Embedded POS equipment

Actual triggering behaviour can be configured according to the scanner's supported operating modes.

Continuous Scanning

The scanner also supports continuous scanning.

In this mode, the scanning engine remains ready to decode compatible barcodes without requiring an individual trigger operation for every scan.

Continuous mode may be useful in embedded systems where barcodes are repeatedly presented to a fixed scanning window.

The appropriate scanning mode should be selected according to the application to avoid unintended duplicate or nearby barcode reads.

Manual Trigger Mode

Manual triggering is also supported.

This provides flexibility when the scanner is integrated into equipment where the host system or operator needs to control exactly when scanning begins.

The best trigger mode depends on the kiosk, POS application or embedded controller.

USB Connectivity

USB provides a practical interface for integration with compatible:

• PCs
• POS computers
• Industrial computers
• Kiosks
• Embedded controllers
• Self-service terminals

Depending on the selected configuration, USB operation can be configured for the required host environment.

Software and interface mode should be verified before deployment.

RS-232 / COM Connectivity

The T-E2 is also available with RS-232 serial connectivity.

RS-232 remains useful in commercial and industrial equipment where serial communication is required, including:

• Kiosks
• Access-control systems
• Embedded controllers
• Legacy POS systems
• Vending machines
• Industrial equipment

RS-232 configurations may require separate power depending on the cable and system architecture.

Customers should verify connector type, pinout, baud-rate settings and power requirements before integration.

Screen Barcode Reading

The 2D CMOS scanning engine can be used for compatible barcodes displayed on electronic screens.

Potential applications include reading QR or other supported codes from:

• Smartphones
• Tablets
• Digital tickets
• Electronic membership cards
• Mobile payment applications
• Electronic access passes

Successful screen scanning depends on factors such as screen brightness, barcode size, contrast, viewing angle, reflections and display technology.

Barcode Resolution

TEKLEAD's published T-E2 specification identifies example decoding capabilities including approximately:

• Code 39: 5 mil
• QR Code: 8.7 mil

under specified test conditions.

Barcode readability depends on print quality, contrast, barcode dimensions, distance, angle and environmental conditions.

These figures should therefore be treated as manufacturer test specifications rather than guaranteed performance for every barcode.

Scanning Distance

The manufacturer publishes different working distances depending on barcode type and density.

Examples include approximately:

5 mil Code 39: 5–12 cm
15 mil Code 39: 4–25 cm
10 mil Code 93: 4–21 cm
15 mil UPC/EAN: 4–25 cm
20 mil QR Code: 4–25 cm

These values illustrate why the required barcode should be tested during kiosk or equipment design.

There is no single fixed reading distance that applies to every barcode.

Compact Embedded Design

The T-E2 is designed as an embedded scanning module rather than a conventional handheld scanner.

This allows it to be incorporated into equipment where:

• Space is limited
• The scanner needs to remain fixed
• Hands-free scanning is required
• The scanner should be concealed within an enclosure
• The user presents a barcode to a fixed window

The final enclosure must provide an appropriate unobstructed scanning window and mounting position.

Kiosk Applications

The TEKLEAD T-E2 can be considered for:

• Self-service kiosks
• Visitor registration
• Hotel check-in systems
• Queue-management kiosks
• Ticketing machines
• Information terminals
• Payment kiosks
• Membership systems

The scanner itself only captures and decodes barcode data. The complete kiosk application, user interface and transaction logic are provided by the host system.

Access-Control Applications

Potential access-control applications include:

• QR visitor passes
• Electronic entry tickets
• Membership identification
• Event admission
• Temporary access codes
• Building check-in

Before deployment, customers should confirm that the scanner supports the exact barcode format generated by their access-control software.

The scanner does not independently make access decisions; it supplies decoded barcode data to the connected system.

Vending and Self-Service Equipment

The compact fixed-mount format can also be integrated into:

• Vending machines
• Locker systems
• Collection terminals
• Self-service payment equipment
• Parcel terminals
• Automated dispensing systems

Mechanical integration, electrical interface and software communication should be validated by the equipment designer or system integrator.

Retail and POS Applications

The T-E2 may also be used where a fixed scanner is preferred over a handheld device.

Potential applications include:

• Embedded POS counters
• Price-check terminals
• Loyalty applications
• Customer self-check functions
• Coupon scanning
• QR-based promotions

For conventional high-volume checkout environments, customers should compare the T-E2 with purpose-built presentation scanners before deciding.

Installation Considerations

Because the T-E2 is an embedded module, successful installation depends on more than the scanner specification alone.

The equipment designer should consider:

• Mounting position
• Scan-window dimensions
• Barcode presentation angle
• Reading distance
• Ambient lighting
• Reflections
• Host interface
• Cable routing
• Power supply
• Ventilation
• Software communication
• Maintenance access

Testing with the actual barcode and final enclosure is strongly recommended before quantity deployment.

Purpose of Use

The TEKLEAD T-E2 / TEK-E2-3189 is designed primarily for embedded automatic barcode scanning.

Its main advantage is the combination of:

2D CMOS Imaging + Automatic Induction + USB / RS-232 + Compact Fixed-Mount Design

This makes it more appropriate for integration into equipment than a conventional handheld barcode scanner.

Compatibility

Before ordering, verify compatibility with:

• Host operating system
• POS software
• Kiosk application
• Access-control software
• Embedded controller
• USB interface requirement
• RS-232 interface requirement
• Serial communication parameters
• Required barcode symbologies
• Barcode size and density
• Screen-reading requirement
• Power supply
• Mechanical enclosure

NEOTECH® recommends testing the exact scanner configuration with the intended host system before large-scale deployment.

Things to Verify Before Ordering

Please confirm:

• Exact model/reference: TEKLEAD T-E2 / TEK-E2-3189
• 2D CMOS version required
• USB or RS-232 interface
• Required cable configuration
• Required power arrangement
• Automatic induction requirement
• Continuous scanning requirement
• Required 1D barcode formats
• Required 2D barcode formats
• QR Code requirement
• Data Matrix requirement
• PDF417 requirement
• Printed or screen barcode application
• Typical barcode dimensions
• Expected scanning distance
• Host operating system
• Software compatibility
• Mechanical mounting dimensions
• Installation environment
• Exact package contents
• Current availability
• Applicable warranty

Who Should Consider the TEKLEAD T-E2?

The T-E2 may be suitable for:

• Kiosk manufacturers
• POS system integrators
• Access-control companies
• Vending-machine manufacturers
• Automation companies
• Locker-system developers
• Ticketing-system providers
• Retail technology companies
• Industrial equipment builders
• Self-service solution providers

Businesses simply requiring a normal desktop or handheld barcode scanner should consider a dedicated handheld or presentation scanner instead of an embedded module.

Why NEOTECH® UAE

Embedded barcode scanners should be selected according to the actual interface, barcode type and integration requirement, not simply because a product description says “2D scanner.”

For the TEKLEAD T-E2 platform, important differences can include:

• 1D CCD versus 2D CMOS
• USB versus RS-232
• Interface configuration
• Scanning mode
• Host system
• Cable and power arrangement

NEOTECH® therefore recommends confirming the exact 2D configuration and intended application before purchase.

Learn First. Decide Second. Buy Only If It Is Right for Your Needs.

Delivery – UAE

Delivery is available within the UAE.

Order Cut-off: 14:00 GST
Handling: 1–2 business days where applicable
Standard Transit: Approximately 3–5 business days after handling
Typical Total Delivery: Approximately 4–7 business days for confirmed available products

For non-stock or special-order configurations, delivery may require approximately 10–15 working days or up to 25 working days, depending on supplier/manufacturer availability.

Current availability and exact interface configuration should be confirmed before ordering.

FAQ - TEKLEAD T-E2

Q: What is the TEKLEAD T-E2?
A: It is a compact embedded fixed-mount barcode scanner designed for integration into kiosks, POS equipment, access-control terminals, vending machines and other self-service systems.

Q: Is TEK-E2-3189 a 2D barcode scanner?
A: The T-E2 platform is available in different scanning configurations. This page specifically covers the 2D CMOS version. The exact unit should be verified before ordering.

Q: Can it read normal 1D barcodes?
A: Yes. The 2D CMOS version supports common 1D symbologies in addition to supported 2D codes.

Q: Can it read QR Codes?
A: Yes. QR Code is one of the supported 2D symbologies.

Q: Does it support Data Matrix?
A: Yes. Data Matrix is supported by the 2D version.

Q: Does it support PDF417?
A: Yes. PDF417 is included among the manufacturer's supported 2D symbologies.

Q: Can it scan barcodes automatically?
A: Yes. The T-E2 supports automatic induction / sensing mode in addition to manual and continuous scanning modes.

Q: Does it support continuous scanning?
A: Yes. Continuous scanning is supported.

Q: Does it have USB?
A: USB is an available interface for the T-E2 platform.

Q: Does it support RS-232?
A: Yes. RS-232 / COM is available for serial integration.

Q: Does one unit automatically include both USB and RS-232 cables?
A: Not necessarily. Interface and cable configurations can differ. Confirm the exact supplied version and package contents before ordering.

Q: Can it scan QR Codes from a mobile phone?
A: The 2D CMOS version is designed to read compatible barcodes from electronic displays. Actual performance depends on screen brightness, barcode size, contrast, reflections and presentation angle.

Q: Is it a handheld scanner?
A: No. The T-E2 is primarily an embedded fixed-mount scanning module.

Q: Can it be installed inside a kiosk?
A: Yes. Kiosks and other self-service equipment are among the main applications for this type of embedded scanner.

Q: Does it require integration?
A: Yes. Mechanical mounting, power, interface and host-software communication must be considered when integrating an embedded scanner.

Q: Is it suitable for access control?
A: It can supply decoded barcode data to compatible access-control systems. The host application remains responsible for validating the code and making access decisions.

Related Products

• TEKLEAD Embedded Barcode Scanners
• TEKLEAD 2D Barcode Scanners
• Fixed-Mount Barcode Scanners
• Desktop Presentation Scanners
• Kiosk Barcode Scanners
• QR Code Readers
• USB Barcode Scanners
• RS-232 Barcode Scanners
• POS Barcode Scanners
• Self-Service Kiosk Components

Helpful Internal Links

• Barcode Scanners UAE
• 2D Barcode Scanners UAE
• Embedded Barcode Scanners
• Fixed-Mount Barcode Readers
• QR Code Scanners UAE
• POS Hardware UAE
• Kiosk Components UAE
• Access-Control Barcode Readers

Contact - NEOTECH® UAE

For exact interface verification, integration requirements, availability or quotation:

Email: support@neotech.ae
Address: Store 13, Computer Building, Al Fahidi, Bur Dubai, Dubai 44245, UAE

Disclaimer - NEOTECH® UAE

TEKLEAD and related product names are trademarks of their respective owners. NEOTECH® is an independent UAE technology supplier and does not claim manufacturer authorization unless expressly documented.

TEKLEAD T-E2 configurations can vary by scanning engine, interface, cable and supplied accessories. This page focuses on the 2D CMOS embedded version associated with the T-E2 / TEK-E2-3189 reference.

Scanning distance, barcode resolution, environmental protection and other performance figures are manufacturer specifications measured under defined conditions. Actual results depend on barcode quality, size, contrast, lighting, mounting, screen characteristics, interface configuration and operating environment.

Verify the exact model, 2D scanning engine, interface, cable, power requirements, mechanical integration and software compatibility before ordering or deploying the scanner.

Last Updated: 25 September 2026 (GST, UTC+4)