Product Details
5NF Electrochemical Nitric Oxide (NO) Gas Sensor For Environmental
Monitoring Industrial Safety
General Overview:
The 5NF adopts a reliable three-electrode electrochemical design,
optimized for sensitive and stable detection of nitrogen dioxide
(NO₂)—a toxic gas emitted from industrial processes, vehicle
exhaust, and combustion systems. It delivers a linear current
output proportional to NO₂ concentration, with minimal
cross-interference from common background gases. Packaged in City
Technology’s standard 5-series form factor, it offers excellent
compatibility with most gas detection device housings, making it
suitable for both fixed and portable monitoring equipment.
Key Features:
- High Selectivity for NO₂: Optimized electrode and electrolyte
formulation minimizes interference from gases like CO, H₂, and SO₂,
ensuring accurate NO₂ measurement in complex environments.
- Zero Bias Operation: Requires no external bias voltage, simplifying
circuit design and reducing power consumption for portable devices.
- Stable Three-Electrode Design: Reduces polarization and zero drift,
enhancing long-term reliability for continuous monitoring
applications.
- Compact & Compatible: Standard 5-series package fits most gas
detector enclosures, enabling easy replacement or integration.
- Wide Environmental Adaptability: Performs reliably across a broad
temperature and humidity range, suitable for indoor/outdoor
industrial and environmental use.
Typical Applications:
- Environmental Monitoring: Urban air quality stations, vehicle
exhaust detection, and industrial emission monitoring to comply
with NO₂ pollution regulations.
- Industrial Safety: Chemical plants, power stations, and
manufacturing facilities (where combustion processes generate NO₂)
to protect workers from toxic exposure.
- Portable Gas Detectors: Handheld safety devices for maintenance
personnel, environmental inspectors, and emergency responders.
- Fixed Gas Alarm Systems: Permanent installations in warehouses,
production areas, and urban infrastructure to trigger alarms at
unsafe NO₂ concentrations.
- Analytical Instruments: Laboratory equipment and gas chromatography
systems for precise NO₂ concentration measurement.
| Repeatability | 2% of signal |
| Linearity | Linear |
| Recommended Load Resistor | 10 Ω |
| Bias Voltage | +300 mV |
| Weight | 13 g nominal |
| Operating Temperature Range | -20°C to +40°C See note 1 |
| Recommended Storage Temp | Recommended Storage Temp |
| Pressure Coefficient | 0.01% signal / mbar |
Company Profile
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, photodiodes, Japan FIGARO, UK
CITY, ALPHASENSE full range of semiconductors, catalytic,
electrochemical gas sensors, French HUMIREL/MEAS humidity sensors
and other international well-known companies authorized agents or
distributors, to provide customers with product information,
products Solutions, product selection, supply guarantee and
logistics services, etc.

