Shanghai Yixin
NDIR infrared gas sensors
NDIR infrared sensors for CO₂, CH₄ and SF₆ — poison-resistant, minimal drift, calibration-free. Ideal for harsh industrial and continuous online monitoring.
- NDIR principle — poison & cross-interference resistant
- Long life, minimal recalibration
- Minimal long-term drift for stable data
- CO₂ ranges from 5000 ppm to 100% VOL
- Modbus RTU & analog dual output
- Suited to continuous online & harsh industrial monitoring
Product Families
Shanghai Yixin Product Families
Locate the right sensor model by target gas and application scenario.
G4 NDIR Gas Sensors
Covering combustible gases such as methane, isobutane and acetylene, plus full-range CO₂ (5000 ppm ~ 100% VOL, 7 ranges).
View seriesG4(P) Upgraded NDIR Series
Higher resolution and faster response than G4 (T90 < 25 s), covering methane and CO₂ (5000 ppm / 5%VOL / 100%VOL) with full-range temperature compensation.
View seriesG7 / G7C SF₆ NDIR Sensors
Purpose-built for SF₆ leak detection: G7 0-1000 ppm (extendable to 2000/3000 ppm), G7C 0-1500 ppm with Modbus RTU — ideal for power GIS equipment.
View seriesG8 / G801C / G805C Air Quality Modules
For IAQ/HVAC: G8(S) & G801C CO₂ modules (auto-calibration), G805C/CE 5-in-1 modules (CO₂ + HCHO + PM2.5 + temp/RH).
View seriesAll Products
All Shanghai Yixin Products
Products
A data-driven catalog covering featured brands such as EC Sense, Shanghai Yixin and Ningbo Xingpu. Narrow by brand first, then by target gas — each detail page includes full specifications and a downloadable datasheet.
Filter by target gas
21 products
G4111 Methane NDIR Infrared Gas Sensor
Methane
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4111, 0 – 100% LEL range, dual-wavelength NDIR detection
View Details → G4112 Methane NDIR Infrared Gas Sensor
Methane
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4112, 0 – 5% VOL range, dual-wavelength NDIR detection
View Details → G4113 Methane NDIR Infrared Gas Sensor
Methane
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4113, 0 – 100% VOL range, dual-wavelength NDIR detection
View Details → G4115 Isobutane NDIR Infrared Gas Sensor
Isobutane
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4115, 0 – 100% LEL range, dual-wavelength NDIR detection
View Details → G4321 Acetylene NDIR Infrared Gas Sensor
Acetylene
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4321, 0 – 100% LEL range, dual-wavelength NDIR detection
View Details → G4441 Carbon Dioxide NDIR Infrared Gas Sensor
Carbon Dioxide
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4441, 0 – 5000 ppm range, dual-wavelength NDIR detection
View Details → G4442 Carbon Dioxide NDIR Infrared Gas Sensor
Carbon Dioxide
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4442, 0 – 1% VOL range, dual-wavelength NDIR detection
View Details → G4443 Carbon Dioxide NDIR Infrared Gas Sensor
Carbon Dioxide
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4443, 0 – 2% VOL range, dual-wavelength NDIR detection
View Details → G4444 Carbon Dioxide NDIR Infrared Gas Sensor
Carbon Dioxide
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4444, 0 – 5% VOL range, dual-wavelength NDIR detection
View Details → G4445 Carbon Dioxide NDIR Infrared Gas Sensor
Carbon Dioxide
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4445, 0 – 10% VOL range, dual-wavelength NDIR detection
View Details → G4446 Carbon Dioxide NDIR Infrared Gas Sensor
Carbon Dioxide
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4446, 0 – 20% VOL range, dual-wavelength NDIR detection
View Details → G4447 Carbon Dioxide NDIR Infrared Gas Sensor
Carbon Dioxide
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Shanghai Yixin G4447, 0 – 100% VOL range, dual-wavelength NDIR detection
View Details →
G7C-IR-SF6 SF6 NDIR Infrared Gas Sensor
Sulfur Hexafluoride
Non-Dispersive Infrared (NDIR)
Shanghai Yixin G7C, 0 – 1500 ppm SF6 range, Modbus RTU + analog output
View Details → G4(P)-CH4 Methane NDIR Infrared Gas Sensor (Upgraded)
Methane
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Upgraded G4 methane: 0.5%LEL resolution, T90 < 25 s, -40 to +70 ℃
View Details → G4(P)-CO2 Carbon Dioxide NDIR Infrared Gas Sensor (Upgraded)
Carbon Dioxide
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
Upgraded G4 CO2: 5000 ppm / 5%VOL / 100%VOL ranges, T90 < 25 s
View Details → G4-N2O Nitrous Oxide NDIR Infrared Gas Sensor
Nitrous Oxide
Non-Dispersive Infrared (NDIR, dual-wavelength optical path)
G4-platform N2O NDIR sensor — range and accuracy on request
View Details → G7-SF6 Sulfur Hexafluoride NDIR Infrared Gas Sensor
Sulfur Hexafluoride
Non-Dispersive Infrared (NDIR)
Purpose-built for SF6 leak detection: 0-1000 ppm (extendable to 2000/3000 ppm), ≤±2%FS
View Details → G8(S) Carbon Dioxide NDIR Infrared Gas Sensor
Carbon Dioxide
Non-Dispersive Infrared (NDIR, industrial-grade optical bench)
CO2 sensor for IAQ/HVAC: 400-2000 ppm extendable to 10000 ppm, with auto-calibration
View Details → G801C Carbon Dioxide Infrared Sensor Module
Carbon Dioxide
Integrated NDIR module
Cost-effective CO2 module: real-time concentration display, plug-and-play terminals
View Details → G805C 5-in-1 Air Quality Sensor Module (CO2/HCHO/PM2.5/Temp/RH)
Multi-parameter Air Quality
Multi-principle module (CO2 via NDIR)
5-in-1 module: simultaneous CO2 + HCHO + PM2.5 + temperature & humidity output
View Details → G805CE 5-in-1 Air Quality Sensor Module (Wide-Range HCHO)
Multi-parameter Air Quality
Multi-principle module (CO2 via NDIR)
G805C module edition: HCHO range widened to 0-10000 µg/m³, five parameters in one
View Details →Get Shanghai Yixin Quote
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