Portable NO2 gas detector – Nitrogen dioxide gas sensor Handheld


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Portable NO2 gas detector introduction

Portable NO2 gas detector is a gas sensor that can detect the concentration of nitrogen dioxide gas anytime and anywhere, and can give sound and light alarm. Portable appearance of no2 gas detector humanized design, accord with mechanics principle, on the premise of guarantee the sensitivity and accuracy, strengthen human body comfort, with the limit alarm functions, when nitrogen dioxide gas more than the set value of gas, nitrogen dioxide sensor will open the light alarm, high decibel buzzer alarm, meter standard red, timely warning, high safety.

Portable NO2 gas detector

Portable NO2 gas detector Features

1, high quality sensor, high sensitive probe

Sensitive response, quick response, accurate measurement.

2, mechanical principle, humanized design

Anti-slip design based on the principle of human mechanics, let us ensure the sensitivity and accuracy of the product under the premise of strengthening human comfort, so that the product in line with human operating habits.

3, 200,000 data storage/large capacity

One click export/fast and convenient, can enter the menu to view, can browse/delete records.

4, lithium battery power durable endurance

Rechargeable lithium battery, large battery capacity, long standby time, support mobile power supply.

Portable NO2 gas detector parameters

Detection gas: nitrogen dioxide

Nitrogen dioxide measurement range: 0-20ppm

Nitrogen dioxide measurement resolution: 0.1ppm

Nitrogen dioxide measurement default alarm point: 5ppm

Measurement method: electrochemical

Charging time: ≤8H (standard)

Display error: ≤ soil 3%F.S

Explosion-proof mark: EXIA II CT6

Recovery time: ≤30S

Protection level: IP65

Response time: T90<30s

Linearity: ≤ 2

Repeatability: ≤ soil 2

Operating temperature: -20°C~50°C

Power supply: 3.6V DC, 1500mAh (standard) lithium battery

Communication mode: USB (charging and communication)

Data storage: The default storage function is not provided. You can customize the data storage function of 15,000 or 200,000 pieces

Nitrogen dioxide gas sensor


The instrument can easily handle various application environments, suitable for gas storage leak monitoring, food factory, greenhouse detection, workshop disinfection residue detection, gas leakage, indoor air gas detection.



NO2 is nitrogen dioxide, a brown-red, highly reactive gaseous substance. Nitrogen oxide is the general term for nitrogen monoxide, nitrogen dioxide, and other nitrogen oxides, and nitrogen dioxide plays an important role in the formation of ozone. Man-made nitrogen dioxide mainly comes from the release of high-temperature combustion processes, such as exhaust emissions from motor vehicles and power plants. Domestic stoves and gas stoves also produce considerable amounts of nitrogen dioxide.


Nitrogen dioxide tends to accumulate in large quantities in the goaf, mining face, return air tunnel, and other places in underground coal mines. For safety reasons, coal mine enterprises will install NO2 sensor in these places to monitor the nitrogen dioxide gas in real-time. In addition to being used in the coal industry, nitrogen dioxide sensors are also widely used in chemical, meteorological and other industries to monitor the nitrogen dioxide gas content.


A NO2 sensor is an instrument used to detect the concentration of nitrogen dioxide and usually has an alarm function.


The NO2 sensor uses the electrochemical working principle. It works based on the diffusion of NO2 gas into the sensor and converts the measured NO2 concentration into electrical signal output. Although the concentration of nitrogen dioxide is low, it can still be accurately and reliably measured.


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