(0) Shopping cart
You have no items in your shopping cart.
Shopping Categories

    Portable Nitrogen Dioxide (NO2) Gas Detector, 0 to 20/50/100 ppm

    5 out of 5 based on 1 reviews | Write a review
    Portable Nitrogen Dioxide (NO2) gas detector for sale at economic price. Optional measuring range 0 to 20/50/100 ppm, light weight and compact size, convenient to transport. Sound, light and vibration alarm for NO2 gas leak, fast response and accurate detection.
    SKU: GD200-NO2
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Handheld Nitrogen Dioxide (NO2) gas leak detector draws the gas by built-in micro pump, fast response, precision measurement and easy carrying.


    • LCD dot matrix display, direct readout of gas type, unit, concentration, local time, etc.
    • Support English/Chinese operation, easy to shift.
    • Gas concentration unit PPM and mg/m3 can be shift quickly.
    • Built-in micro-sampling pump, 10 grades of suction are available.
    • Explosion-proof certification

    Gas Detector Functions

    • With self-calibration and zero calibration functions, makes the detection more accurate and reliable.
    • One key to restore factory setting, free from maloperation.
    • With temperature and pressure compensation, able to realize the compensation for the gas concentration under different temperature and pressure environments.
    • Two-stage alarm with sound and light, and alarm point is settable.
    • Rechargeable lithiumpolymer battery with large capacity.
    • High-strength special engineering plastic housing, with anti-slip, waterproof, dustproof and explosion-proof


    Model GD200-NO2
    Sampling Method Pumping suction, flow rate can be up to 1L/min, ten grades of pumping suction for selection.
    Detection Principle Electrochemistry
    Gas Nitrogen Dioxide (NO2)
    Range (Optional) 0 to 20 ppm, 0 to 50 ppm, 0 to 100 ppm, 0 to 500 ppm, 0 to 1000 ppm
    Resolution 0.01ppm (0-20/50ppm), 0.1ppm (0-100ppm), 1ppm (0-500/1000ppm)
    Accuracy ≤±3% F.S.
    Responce Time ≤10s
    Repeatability ≤±1%
    Recovery Time ≤10s
    Linearity Error ≤±1%
    Zero Shift ≤±1% (F.S./year)
    Data Logging (Optional Function) High speed data transmission by USB, available for data downloading and printing
    Alarms Sound, light and vibration
    Display LCD dot matrix display
    Language Chinese/English
    Battery 3.7V rechargeable lithium battery, 3.7 Watt (Charger included: Input AC 100-240V 50/60Hz with optional USA, Europe or UK plug)
    Operating Time 100h (Pump off)
    Explosion-proof Grade Ex ia llC T4
    Protection Grade IP66
    Certification CE, ATEX
    Operating Temperature -20℃~50℃
    Operating Humidity 0~95%RH (non-condensing)
    Operating Pressure 0.8~1.2bar
    Dimension 205*75*32mm
    Weight 300g
    Warranty 12 months
    Extension Probe About 480mm (Total Length), About 300mm (Probe Head)

    * If you need a NO2 gas detector with other measuring ranges unlisted in above table, please contact us to inform your operating environment, so as to help you choose an appropriate one for your application.
    We also provide other common gas detectors, and you can refer to ATO Gas Detector Catalog to get the specific gas type and measurement range. If you have any questions, please feel free to contact us.

    *** Other Common Gases and Ranges Available for Portable Gas Detectors

    Gas Type Measure Range Resolution
    Ammonia (NH3) 0-10/20/50/100/200/500/1000/2000/5000ppm 0.01ppm/0.1ppm/1ppm
    Benzene (C6H6) 0-1/5/10/20/50/100/200/500/1000/2000/5000ppm 0.001ppm/0.01ppm/0.1ppm/1ppm
    Carbon Dioxide (CO2) 0-1000/2000/5000/10000/20000/50000 ppm, 0-10%/20%/30%/50%/100%VOL 1ppm, 0.01%VOL
    Carbon Monoxide (CO) 0-10/20/50/100/500/1000/2000ppm 0.001ppm/0.01ppm/1ppm
    Chlorine (Cl2) 0-5/10/20/50/100/200ppm 0.001ppm/0.01ppm/0.1ppm
    Chlorine Dioxide (ClO2) 0-10/20/50/100ppm 0.001ppm/0.01ppm/0.1ppm
    Ethylene (C2H4) 0-10/20/50/100/500/1000/2000ppm 0.001ppm/0.01ppm/0.1ppm/1ppm
    Flammable 0-100%LEL 1%LEL
    Formaldehyde (CH2O) 0-10/20/50/100/500/1000ppm 0.01ppm/0.1ppm/1ppm
    HC 0-100%LEL 1%LEL
    Hydrogen (H2) 0-10/20/100/500/1000/2000/5000ppm, 0-1%/2%/4%VOL 0.001ppm/0.01ppm/1ppm, 0.001%VOL
    Hydrogen Chloride (HCL) 0-10/20/50/100/200/500/1000/2000ppm 0.01ppm/0.1ppm/1ppm
    Hydrogen Cyanide (HCN) 0-10/20/50/100ppm 0.01ppm/0.1ppm
    Hydrogen Fluoride (HF) 0-1/5/10/50ppm 0.001ppm/0.01ppm
    Hydrogen Sulfide (H2S) 0-5/10/20/50/100/200/500/1000/2000ppm 0.001ppm/0.01ppm/0.1ppm/1ppm
    Methane (CH4) 0-100%LEL, 0-50%/100%VOL 1%LEL, 0.01%VOL
    Methyl Bromide (CH3Br) 0-1/10/20/50/100/200ppm 0.01ppm/0.1ppm/1ppm
    Nitric Oxide (NO) 0-20/50/100/250/500/1000ppm 0.01ppm/0.1ppm/1ppm
    Nitrogen (N2) 0-100% VOL 0.01%VOL
    Nitrogen Dioxide (NO2) 0-20/50/100/500/1000ppm 0.01ppm/0.1ppm/1ppm
    Oxygen (O2) 0-25%/30%/100%VOL 0.01%VOL
    Ozone (O3) 0-5/10/20/50/100/200/500/1000/2000ppm 0.001ppm/0.01ppm/0.1ppm/1ppm
    Phosgene (COCl2) 0-1/5/10ppm 0.001ppm
    Phosphine (PH3) 0-10/20/50/100/500/1000/2000/3000ppm 0.01ppm/0.1ppm/1ppm
    Sulfur Dioxide (SO2) 0-20/50/100/500/1000ppm 0.01ppm/0.1ppm/1ppm
    Sulfur Hexafluoride (SF6) 0-1000/2000/3000ppm 1ppm
    Volatile Organic Compounds (VOC) 0-1/5/10/20/50/100/200/500/1000/2000/5000ppm 0.001ppm/0.01ppm/0.1ppm/1ppm


    Portable Nitrogen Dioxide (NO2) Gas Detector Details


    Applications of NO2 Gas Detector

    Tips: Portable gas detector working principle

    The gas detector can detect a variety of gases, and is widely used in petrochemical, coal, metallurgy, chemical, municipal gas, environmental monitoring and other places for on-site detection. It can meet the measurement needs of special occasions; it can detect gas concentration or leak detection in tunnels, pipelines, tanks, confined spaces, etc.

    The type of gas can be distinguished by measuring the absorption spectrum, the concentration of the gas can be determined by measuring the absorption intensity. The infrared detector has a wide range of use, which can not only analyze the gas composition, but also the solution composition, and has high sensitivity, rapid response, and continuous online instructions, and it can also form an adjustment system. The detection part of the infrared gas detector commonly used in industry is composed of two parallel optical systems with the same structure.

    One is the measurement room and the other is the reference room. The two chambers open and close the light path at the same time or alternately at a certain cycle through the light cutting board. After the gas to be measured is introduced into the measurement chamber, the light with the unique wavelength of the gas to be measured is absorbed, so that the luminous flux entering the infrared receiving gas chamber through the optical path of the measurement chamber is reduced. The higher the gas concentration, the less the luminous flux entering the infrared receiving gas chamber; and the luminous flux passing through the reference chamber is constant, and the luminous flux entering the infrared receiving gas chamber is also constant. Therefore, the higher the concentration of the gas to be measured, the greater the difference in luminous flux passing through the measurement chamber and the reference chamber. This difference in luminous flux is projected to the infrared receiving air chamber with the amplitude of a certain period of vibration.

    The receiving gas chamber is divided into two halves with a few micrometers thick metal film. The chamber is sealed with a large concentration of measured component gas, which can absorb all the incoming infrared light within the absorption wavelength range, so that the pulsating luminous flux becomes the periodic change of temperature can be converted into a pressure change according to the gas equation, and then detected by a capacitive sensor. After amplifying, the concentration of the gas to be measured can be indicated. In addition to capacitive sensors, quantum infrared sensors that directly detect infrared can also be used, and infrared interference filters are used for wavelength selection and tunable lasers are used as light sources to form a new all-solid-state infrared gas detector. This kind of detector only uses a light source, a measuring chamber, and an infrared sensor to complete the gas concentration measurement. In addition, if filter discs equipped with multiple different wavelengths are used, the concentrations of various gases in multi-component gases can be measured separately at the same time.

    Existing reviews of Portable Nitrogen Dioxide (NO2) Gas Detector, 0 to 20/50/100 ppm
    Questions about the portable NO2 gas detector
    I am very interested in your NO2 gas detector. Can it detect the leakage of NO2 in the mixed gas?
    From: Vonnie | Date: 09/11/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, it can detect the leakage of NO2 in the mixed gas.
    Load more reviews...
    Write your review for Portable Nitrogen Dioxide (NO2) Gas Detector, 0 to 20/50/100 ppm
    • Only registered users can write reviews
    • Bad
    • Excellent