ShenzhenYijiajie Electronic Co., Ltd.
| Life / Warranty | > 24 months |
| Operating temperature | -20℃ ~ +50℃ |
| Operating humidity | 15%–90% RH |
| Packaging Details | Palletized |
| Sensitivity | -600 ~ -1150nA/ppm |
| Payment Terms | L/C, D/A, D/P, T/T, , |
| Supply Ability | 1000 |
| Delivery Time | 5-8 days |
| Measuring range | 20ppm |
| Response time | < 60s |
| Linear error | < +/-0.2ppm |
| Load resistance | 33 Ω |
| Brand Name | Alphasense |
| Model Number | NO2-B1 |
| Place of Origin | Britain |
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Product Specification
| Life / Warranty | > 24 months | Operating temperature | -20℃ ~ +50℃ |
| Operating humidity | 15%–90% RH | Packaging Details | Palletized |
| Sensitivity | -600 ~ -1150nA/ppm | Payment Terms | L/C, D/A, D/P, T/T, , |
| Supply Ability | 1000 | Delivery Time | 5-8 days |
| Measuring range | 20ppm | Response time | < 60s |
| Linear error | < +/-0.2ppm | Load resistance | 33 Ω |
| Brand Name | Alphasense | Model Number | NO2-B1 |
| Place of Origin | Britain | ||
| High Light | High Sensitivity Nitrogen Dioxide Gas Sensor ，Nitrogen Dioxide NO2 Gas Sensor ，NO2-B1 Nitrogen Dioxide Gas Sensor | ||
Product Description:
YJJ NO2-B1 0-20PPM Electrochemical Nitrogen Dioxide Sensor Industrial Safety Emissions Monitoring
Features:
I. Core Parameters (25℃, air environment)
Target gas: Nitrogen Dioxide (NO₂)
Measurement range: 0–20 ppm
Sensitivity: -450 ~ -1000 nA/ppm (10 ppm NO₂)
Resolution: 0.02 ppm (suitable for low concentration measurement)
Response time T90: < 60 s (0→10 ppm)
Linear error: < ±0.2 ppm (linear good from 0–10 ppm)
Overload: 100 ppm (can withstand for a short time)
Zero drift: < 0.2 ppm/year (long-term stability)
Operating temperature: -20℃ ~ +50℃
Operating humidity: 15%–90% RH (can handle high humidity, outdoor / water-wash environment)
Load resistance: 33 Ω
Life / Warranty: > 24 months (long-life for industrial grade)
II. Working Principle
Electrochemical three-electrode (working / counter / reference):
NO₂ diffuses onto the working electrode surface and undergoes redox reaction;
Generates a current signal proportional to the concentration (nA level);
The reference electrode maintains a stable potential, providing a circuit to the working electrode;
Output current → Conversion of concentration (ppm) by the rear-end circuit.
Features: Only sensitive to NO₂, high accuracy at low concentrations, small long-term drift, suitable for long-term monitoring at fixed points.
III. Main Applications (Key Scenarios)
Environmental air quality monitoring
Urban air stations, park / factory boundaries, roadside stations for NO₂ monitoring (conforms to national low-concentration requirements)
Industrial safety and emissions
NOx monitoring in boilers / kilns / flue gas, leakage alarm in metallurgy / chemical / pharmaceutical workshops
Risk control for underground garages, tunnels, parking lots (NO₂超标 triggers exhaust ventilation)
Buildings and HVAC
Air quality monitoring in new ventilation systems, air ducts, computer rooms (stable in high-humidity environments)
Environmental protection equipment and instruments
Fixed NO₂ detectors, online monitoring systems, portable / handheld analyzers core sensing elements
Specifications:
| Overload | 20ppm |
| Resolution | <50s |
| Linear error | < 1.5ppm |
| Resolution | 0.02ppm |
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2006
Total Annual:
900000-1000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Shenzhen Yijiajie Electronic Technology Co., Ltd. has long been deeply engaged in the field of sensing and control technology, specializing in sensor solutions and technical support. The company is an authorized distributor for City, and Siargo, and maintains long-term, stable partnerships with othe... Shenzhen Yijiajie Electronic Technology Co., Ltd. has long been deeply engaged in the field of sensing and control technology, specializing in sensor solutions and technical support. The company is an authorized distributor for City, and Siargo, and maintains long-term, stable partnerships with othe...
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