Portable Nitrogen Dioxide Detector – Handheld NO2 Gas Detector


Portable Nitrogen Dioxide Detector Introduction

Portable nitrogen dioxide detector is a kind of gas detector independently developed by JXCT, which can detect nitrogen dioxide gas concentration anytime and anywhere, and can make sound and light alarm. I gas detector adopts humanized design, in line with the mechanics principle, on the premise of ensuring sensitivity and accuracy, to enhance human comfort, with multiple alarm function over limit, when nitrogen dioxide gas is more than the set gas value, NO2 detector will open the light alarm, high decibel buzzer alarm, the instrument red, timely reminder, high safety.

Portable Nitrogen Dioxide Detector

Portable Nitrogen Dioxide Detector Features

1, high quality sensor, highly sensitive probe

Responsive, quick response, accurate measurement.

2. Mechanics principle, humanized design

Anti-slip design is based on the principle of human mechanics, so that we can strengthen the comfort of human body under the premise of ensuring the sensitivity and accuracy of the product, so that the product is in line with human operating habits.

3. 200,000 pieces of data storage/large capacity

One key export/quick and convenient, you can enter the menu to view, browse/delete records.

4, lithium battery power supply lasting endurance

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

5, multiple alarm function over the limit

When the detected gas is more than the set gas value, the sensor opens the light alarm, high decibel buzzes, the instrument is marked red, timely reminder, high safety.

Portable Nitrogen Dioxide Detector Parameters

Detected gas: nitrogen dioxide

Nitrogen dioxide measurement range: 0-20ppm

Nitrogen dioxide measurement resolution: 0.1ppm

Default Alarm point for nitrogen dioxide measurement: 5ppm

Measurement method: electrochemistry

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: less than 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 store: The storage function is not configured by default. You can customize 15,000 or 200,000 data stores

NO2 Gas Detector


Easy to complete a variety of application environment, gas storage leakage monitoring, food factory, greenhouse detection, workshop disinfection residue detection of 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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