JS Global

A company specializing in NDIR CO² sensors,

the most accurate way to measure carbon dioxide concentrations.

Company

NDIR CO² sensor that measures carbon dioxide concentration most accurately

As a specialized manufacturing company, we prioritize high-quality products and high customer satisfaction.

 

We strive to become a company that thinks from the customer’s perspective and actively reflects them in our development.

ESG & Impact
NDIR (Non-Dispersive Infrared) CO² Sensors Play a Crucial Role in ESG Management A Key Tool for Sustainable Management
스크린샷 2025-10-17 오전 1.35
STEP 01
environment

• Carbon emissions monitoring
• Air quality management and energy savings support

스크린샷 2025-10-17 오전 1.35
STEP 02
society

• Work Environment
• Improvement and Management of Air Quality in Public Facilities
• Health Protection for Citizens, Students, and Workers

617510
STEP 03
governance structure

• ESG Report
• Resources for regulatory compliance
• Provided with carbon dioxide emissions data

HISTORY
2025.09
  • 2 performance testsKorea Construction & Environment Testing Institute
  • 3 patent applicationsKorean Intellectual Property Office
  • Startup Business CompetitionSeongnam Chamber of Commerce and Industry / Encouragement Award

2025.06
  • Bucheon Startup CompetitionBucheon Industrial Promotion Agency / Excellence Award
  • Intellectual Property Support Project SelectionBucheon Industrial Promotion Agency
  • Technology Doctor SME Difficulty 2nd SupportGyeonggi Techno Park
  • SME Design Support Project SelectionBucheon Industrial Promotion Agency

2025.04
  • Social Venture Business RecognitionMinistry of SMEs and Startups
  • Comprehensive Environmental Industry Support ProjectKorea Ceramic Research Institute
  • Bucheon Danbi Business Support ProjectTarget: Bucheon City

2024.12
  • Company Builder Support Project Gyeonggi Province Economic and Science Promotion Agency
  • 2 patent applications Korean Intellectual Property Office
2024.10
  • 2 Performance Tests Korea Conformity Testing Institute
  • Research and Development Department Korea Industrial Technology Association
  • Environmental Competition Winner Ministry of Environment, Korea Institute of Industrial Technology
2024.06.28
  • Selected for Pre-Startup Package Ministry of Environment, Korea Institute of Industrial Technology
  • Company Startup Development & Production of NDIR CO2 Sensor
  • 1 Patent Registered Korean Intellectual Property Office
location
Representative: 070-7509-8616 / 010-4246-6913 (Weekdays: 9:00 AM - 6:00 PM / Closed on Saturdays, Sundays, and public holidays)
Fax : 0504-227-8616
Mail: jschoi@jsgsensor.com
Products and Services

NDIR CO² Sensor Overview and Outlook

STEP 01

Providing stable and accurate data

STEP 02

Long-life sensor with a lifespan of over 10 years

STEP 03

Widely used in various industries and applications

STEP 04

Sensors that receive trust

Screenshot

automobile

Screenshot

air purifier

Screenshot

boiler

Screenshot

Smart farm

SOLUTION

NDIR CO2 sensor’s advantages

Problems with domestic NDIR CO² sensors

Moisture ingress into the sensor, internal oxidation,

blackening, reduced performance

Global companies Cubic of China and

SenseAir of Sweden are suppliers.

Domestic corporate performance and unit price issues

Temperature and Humidity (Reliability) Test / Soongsil University Laboratory

Solutions to domestic companies' problems

Surface treatment: Silver-plated Euro triple coating,

internal oxidation prevention

IP64 FILTER moisture absorption car

지식재산권

Patent registration : 2021-0033469

Patent application : 10-2024-0087495

Patent application : 10-2024-0122272

Patent application : 10-2025-0057329

Patent application : 10-2025-0087738

Patent application : 10-2025-0132503

PRODUCT & TECHNOLOGY

NDIR CO² sensor technology and product differentiation

NDIR (Non-Dispersive Infrared) CO² Sensor Differentiation (Domestic Production) Production Process (Patent Pending) Improved Performance and Accuracy

Burn in operation (Patent application)
IR LAMP & Detector 24-hour operation
1st correction work (Patent application)
400 ppm to 7,000 ppm calibration Step 7 to Step 2 CO2 gas injection
Stage 1 nitrogen (N) gas injection
Improved sensor performance
Secondary correction work (Patent application)
500ppm interval correction
Stage 1 nitrogen (N) gas injection sensor
Increased accuracy

NDIR (비분산 적외선) CO² 센서 개발 성능검증
공인인증기관 한국건설 환경시험 연구원(KCL) 진행

NDIR CO©˜ Sensor Grade 1 performance test (Grade 1 standards met)

Repeatability

Standard: ≤ 10%
Test Result: 0.92%

linearity

Standard: ≤ 15%
Test Result: 6.85%

relative accuracy

Standard: ≤ 30%
Test Result: 12%

Air Purifier Association Performance Test

(Excellent Performance Proven)

Homogeneity

- Standard: ≤ 20%
- Test Results:
9.2% 1000ppm,
5.0% 2000ppm

accuracy

- Standard: ≥ 90%
- Test Results:
99.3% 1000ppm,
95.2% 2000ppm

Product sales
새 프로젝트 (10)
JSG2024_1
CO² sensor module
새 프로젝트 (11)
JSG2025_1
CO2 USB portable meter
새 프로젝트 (12)
JSG2025_2
CO2 simple meter
COMPETITION

The three core elements of a business model (product / value / profit) / Strengthening market competitiveness

division

product

(Patent registration)

product

(Patent registration)

product

(Patent registration)

product

(Patent registration)

competitors

Typical NIDR sensor assembly method

• China CUBIC: 4 screws
• Sweden SenseAir: Bond

Standard maintenance service

Headquartered in China and Sweden, real-time response is difficult.

High price policy for products

• China CUBIC: ₩39,600
• Sweden SenseAir: ₩49,200

Manufacturing based on existing sources

Company strategy

Improved assembly method through patented technology

Switching from screws to hooks reduces assembly time and costs.

Real-time customized technical support

B2B company development quality and

adherence to development schedules

Miniaturization of the compensation chamber using patented technology

• Shortened calibration time. 30% lower price than competitors. • Secured competitiveness. Our own product: ₩28,000.

Minimizing the number of calibration chambers (primary and secondary) to maximize production efficiency.

patent

  • Patent Registration Number: No. 2281179
  • Patent Title: NDIR CO2Sensor Structure
  • Patent Registration Date: July 2021
  • NDIR CO2 Sensor Calibration (Patent Pending: July 2024)
  • Gas Detection Sensor Calibration Method (Patent Pending: July 2025)
  • Grade 1 Performance Test: July 2024
  • Air Purifier Association Performance Test: September 2024
  • NDIR CO2 Sensor Calibration Method (Patent Application: July 2024)
BUSINESS MODEL

Our business model is based on the development and sales of CO² sensors,

with a flexible expansion plan that allows for pivoting to the development 

and sales of products (measuring devices) utilizing these sensors and to the upstream and downstream industries.

Test score/certificate
Screenshot
NDIR CO² sensor

Grade 1 performance test

Screenshot
NDIR CO² sensor

Air Purifier Association Performance Test

Screenshot
CO² portable meter USB TYPE

Grade 1 performance test

Screenshot
CO² portable meter USB TYPE

Air Purifier Association Performance Test

News/Notices
All
News
Notice
News
Seongnam Chamber of Commerce and Industry's first startup competition… CP6 wins grand prize
All 10 finalists received awards Laying the foundation for a vibrant startup ecosystem The...
News
Bucheon Industrial Promotion Agency Selects Six Top Startups for the 2025 Bucheon Startup League
Total support of 100 million won provided to startups within 3 years of establishment – Article...
News
Bucheon City selects nine teams for the 2025 Danbi Startup Support Project.
Social problem-solving startup ideas selected through intensive training and consulting. Step-by-step...
Notice
Official website opened
JS Global’s homepage is officially open!  

Contact

Please contact us and we will be happy to assist you.

TEL : 070-7509-8616
E-mail: jschoi@jsgsensor.com
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- However, to ensure smooth service delivery, personal information may be retained for three months after the completion of the consultation. If required by other laws, such as the Act on Consumer Protection in Electronic Commerce, personal information will be retained for a specified period.

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