Samkoon HMI Industrial Touch Screen


Samkoon SK-121FE is a high-performance and reliable HMI touch screen that provides a user-friendly interface for controlling and monitoring industrial processes. Its advanced features and improved capabilities make it an ideal replacement for the SK-121AE in industrial control systems.

The Samkoon SK-121FE is a 12.1 inch HMI touch screen that is designed for industrial automation and control systems. It is an upgraded version of the SK-121AE, with improved features and capabilities.

The SK-121FE has an 800×600 resolution TFT LCD display with a 4-wire resistive touch panel, providing a clear and easy-to-use interface for operators. It is equipped with a 1GHz ARM Cortex-A9 processor and 512MB DDR3 RAM, allowing for fast and reliable performance.

In terms of communication interfaces, the SK-121FE supports Ethernet, RS232, RS485, USB Host, and USB Device, and is compatible with multiple protocols such as MODBUS, TCP/IP, UDP, and FTP. This enables it to integrate with a wide range of industrial control systems.

The HMI touch screen also has a range of advanced features, such as a built-in RTC, multiple language support, and the ability to display images, animations, and videos. It is designed to operate in harsh industrial environments, with an operating temperature range of -10°C to 60°C, and a storage temperature range of -20°C to 70°C.

Performance Specifications:

  • Operating System: Linux-based for stability, efficiency, security, and reliability
  • Industrial-grade high-performance Cortex A8 processor with a maximum clock speed of 600MHz
  • High-capacity 128MB FLASH + 128MB DDR3, supporting external USB storage
  • Compatibility with HP and miniature printers

Versatile Functional Modules:

  • Support for multiple formula groups and multi-window functions
  • Data acquisition and data alarm capabilities
  • Macro instruction development in C language
  • Chinese language input support
  • Compatibility with over 300 PLC communication protocols
  • Support for 50 languages
  • Rich variety of functions and control options

Comprehensive Embedded Interfaces:

  • Support for various communication methods (232/422/485)
  • Support for USB downloads and USB configuration updates

New Password Mechanisms:

  • Configuration file encryption for added security
  • Staged payments and HMI protection
  • Implementation of multiple security mechanisms for enhanced safety and reliability

Diverse Color Selection:

  • Display capable of showing 16.77 million true colors

Stringent Quality Control:

  • Complies with FCC, Class A, and CE certifications

The SK-121FE is a high-performance Human-Machine Interface (HMI) designed to meet the needs of industrial applications. It operates on a Linux-based system, ensuring stability, efficiency, and reliability. The device is powered by an industrial-grade Cortex A8 processor with a maximum clock speed of 600MHz, offering robust performance.

With 128MB of FLASH and DDR3 memory, as well as support for external USB storage, the SK-121FE provides ample storage options. It is also compatible with HP and miniature printers, making it versatile for various applications.

This HMI offers a wide range of functionality, including support for multiple formula groups, multi-window operations, data acquisition, data alarm features, macro instruction development in C language, Chinese language input, and compatibility with an extensive range of PLC communication protocols. It supports up to 50 languages, making it accessible to a global audience.

The SK-121FE is equipped with a comprehensive set of embedded interfaces, including support for various communication methods and USB downloads. It introduces new password mechanisms for file encryption, staged payments, and HMI protection, enhancing security. The device features a vibrant display capable of rendering 16.77 million true colors. Its quality is assured with certifications for compliance with FCC, Class A, and CE standards.

Structural Specifications:

  • Dimensions: 340x256x54mm
  • Mounting Hole Size: 330x246mm
  • Weight: 2160g
  • Casing Material: Engineered Plastic (ABS+PC)


  • Display Size: 12.1″ (4:3)
  • Resolution: 800×600 pixels
  • Touch Panel: 4-wire high-precision touchpad
  • Display Colors: 16.77 million
  • Backlight: LED
  • Contrast Ratio: 450:1
  • Brightness: 300 cd/m²

Product Features/Certifications:

  • Memory: 128MB FLASH + 128MB DDR3
  • CPU: Cortex A8 600MHz
  • Voltage Withstand Test: 1000V AC for 1 minute
  • Electrostatic Test: Level 4, ±8kV
  • FCC Compatibility: Complies with FCC, Class A
  • CE Certification: Complies with EN55032 and EN55035 standards
  • Protection Level: IP65 (front panel)


  • Power Supply: DC 12-24V (±15%)
  • Power Consumption: 7W
  • Serial Interfaces: COM1, COM2 (RS232/422/485)
  • USB Download Port: Yes
  • USB Port: Yes
  • SD Card: No
  • Ethernet Port: No
  • CAN: No
  • Network Connectivity: No
    • WiFi: No
    • 3G: No
    • Ethernet: No
    • 4G: No

Environmental Specifications:

  • Operating Temperature: -20°C to 55°C (non-freezing)
  • Operating Humidity: 5-95% RH (non-condensing)
  • Shock Resistance: 10-25Hz (XYZ direction, 2G for 30 minutes)

Programming Software:

  • Programming Software: SKTOOL 6.0/6.2/7.0

The SK-121FS is a robust Human-Machine Interface (HMI) designed for a variety of industrial applications. Its structural specifications include a substantial size with dimensions of 340x256x54mm and a mounting hole size of 330x246mm. The device has a weight of 2160g and features a durable casing made from engineered plastic (ABS+PC).

The display is a prominent feature with a 12.1″ screen, offering a 4:3 aspect ratio and a resolution of 800×600 pixels. It incorporates a 4-wire high-precision touchpad for intuitive interaction. The display can produce a wide array of colors, up to 16.77 million, and employs efficient LED backlighting. It boasts a contrast ratio of 450:1 and a brightness of 300 cd/m².

Product features include 128MB of FLASH memory and 128MB of DDR3, backed by a capable Cortex A8 600MHz CPU. The device has undergone stringent testing, including voltage withstand tests and electrostatic tests to ensure safety and reliability. It complies with FCC Class A and CE standards, and its front panel is rated IP65 for protection.

The SK-121FS is powered by a DC supply of 12-24V with a power consumption of 7W. It provides multiple serial interfaces (COM1, COM2) and supports USB downloads and USB connections. While it lacks SD card and Ethernet connectivity, it offers excellent shock resistance, operating reliably in environments with temperatures ranging from -20°C to 55°C and humidity levels of 5-95% RH without condensation.

The device is programmed using SKTOOL 6.0, 6.2, or 7.0, making it a versatile and powerful HMI solution for industrial applications.

Samkoon HMI Industrial Touch Screen