ShenzhenYijiajie Electronic Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 1000 |
| Delivery Time | 5-8 days |
| Packaging Details | Palletized |
| Measuring range | 20ppm |
| Sensitivity | -600 ~ -1150nA/ppm |
| Response time | < 60s |
| Linear error | < +/-0.2ppm |
| Operating temperature | -20℃ ~ +50℃ |
| Operating humidity | 15%–90% RH |
| Load resistance | 33 Ω |
| Life / Warranty | > 24 months |
| Brand Name | Alphasense |
| Model Number | NO2-B1 |
| Place of Origin | Britain |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 1000 |
| Delivery Time | 5-8 days | Packaging Details | Palletized |
| Measuring range | 20ppm | Sensitivity | -600 ~ -1150nA/ppm |
| Response time | < 60s | Linear error | < +/-0.2ppm |
| Operating temperature | -20℃ ~ +50℃ | Operating humidity | 15%–90% RH |
| Load resistance | 33 Ω | Life / Warranty | > 24 months |
| 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
Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph... Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph...
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