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with Unlimited Solutions

Living in the 21st century, we are sharing the historic era of ‘the Fourth Industrial Revolution’. 

The industrial revolution began as a steam engine in the late 18th century. The existing Industrial Revolution made the fundamental change in the underlying technology for innovation in the manufacturing industry through technological revolution, industrialization and digitization.

The era of the 4th Industrial Revolution that we are facing today can be seen as a soft convergence that transcends the boundaries of such infrastructure technologies. The 4th Industrial Revolution will come to us in the form of various forms of services and technologies that will fundamentally change the pattern of modern people's lives.

Internet of Things (IoT), Big Data, Block Chain, Shared Economy and Cloud Sourcing, Robot Autonomous Vehicle, Artificial Intelligence (AI) and 3D Printing are the good example of new technology. These will become more directly involved in human life beyond the industrial scene.


Letus Technology will create flexible technical solutions and services in line with the era of the paradigm shift of the technology, We aim to increase customer value by developing new technologies and products that lead to customer needs.


To this end, we have secured IoT services and product development and various sensor application technologies that fit the needs of consumers, and can lead the era ahead. We will focus on core solutions and product development.

'Letus Technology' does not stay at the present time. We will face the changing technologies and listen to the voices of our customers.

Thank you

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Company History

MAR.2014 : Corporate Foundation

JUN.2014 : Venture Corp. Certification

JUL.2014 : R&D Center Registration


Our Value

Creativity & Innovation

Basic & Integrity

Communication & Flexibility

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Jamming Solution

Jamming Solution.png

Radio Jamming - Electronic warfare

Radio jamming is the (usually deliberate) transmission of radio signals that disrupt communications by decreasing the signal-to-noise ratio. Unintentional jamming occurs when an operator transmits on a busy frequency without first checking whether it is in use, or without being able to hear stations using the frequency. Radio jamming can be applied from air, sea, land, and space by manned and unmanned systems, and can target radio     communications, radar, or other radio types.


Cell phone Jamming – Public and private security

A mobile phone jammer is an instrument used to prevent cellular phone from receiving signals from base stations. When used, the jammer effectively disables cellular phones. These devices can be used in practically any location, but are found primarily in places where a phone call would be particularly disruptive because silence and security are expected.

GNSS Jamming – GPS and GLONASS

GPS is now one of the key technologies used to provide position, navigation and timing information that ships rely on to ensure safe navigation in poor weather conditions and precision of geographical position in battle field. Jammer transmit a low-power signal that creates signal noise and fools a GPS receiver into thinking the satellites are not available. GNSS jammer will help user for protecting critical military information and personal privacy.

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IoT Solution

Air Quality Monitoring IoT Device

-Since 2014

- Temperature, Humidity, CO2, Dust, TVOC Sensors


Sensor Node for Various Applications

Hot-Pluggable Sensor. Platform with LPWAN Connectivity

PLC Node for Smart Factory Application

Gateway for PLC in Manufacturing Sites

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Air Quality Monitoring Device

  • Monitors your Living Environment ( Co2, dust, VOC, Temperature, Humidity, Illuminance)

  • Profile your Environment to Server

  • Improves your quality of life  !

  • Launched At AMAZON, oct 2015 .

  • Launched at Korea Feb, 2016



Thank you very much!

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Sensor Node (Sensation)

SENSATION is a sensor Node  which provides

  • robust  IP65/IK08 Hardware feature can survive harsh outdoor condition   

  •  4 x Hot pluggable sensor probes to meet various IoT applications.

  • Extremely Low Idle Power can run 6 months or more without external supply  

  • supports various Gateway Links ( LoRa,  NBIot,  Zigbee, RS422/485)

Outdoor Jamming System

The CSLR20x is designed for the Outdoor Type and it amplify the existing Jammer signal can extend the Jamming coverage.
In addition, the main feature of internal noise generator can jamming by itself without the existing jammer signal.
It can used to prevent mobile phone signal at some area like such as major public facilities, Police facilities, Religious facilities, Military bases and Prisons.
According to customer's request, we provide jamming devices what is max output power, frequency bandwidth and so on.

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