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    Portable Nitric Oxide (NO) Gas Detector, 0 to 20/50/100 ppm

    5 out of 5 based on 3 reviews | Write a review
    Favorable price Nitric Oxide (NO) Gas Detector for sale. Optional measuring range 0 to 20/50/100/250 ppm, light weight and compact size, portable and convenient to transport. Give sound, light and vibration alarm for NO gas leak, fast response and accurate detection.
    SKU: GD200-NO
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    Portable Nitric Oxide (NO) gas leak detector draws the gas by built-in micro pump and comes in the measuring range 0 to 20/50/100 ppm for choice, fast response, precision measurement and affordable price.


    • 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-NO
    Sampling Method Pumping suction, flow rate can be up to 1L/min, ten grades of pumping suction for selection.
    Detection Principle Electrochemistry
    Gas Nitric Oxide (NO)
    Range (Optional) 0 to 20 ppm, 0 to 50 ppm, 0 to 100 ppm, 0 to 250 ppm, 0 to 500 ppm, 0 to 1000 ppm
    Resolution 0.01ppm (0-20/50ppm), 0.1ppm (0-100/250ppm), 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

    * If you need a NO 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.


    Portable Nitric Oxide (NO) Gas Detector Details


    The NO gas detector is used to detect the nitric oxide gas leak, suitable for petroleum, chemical, coal, metallurgy, pharmaceutical and other places involving hazardous gases such as nitric oxide.

    NO Gas Detector Applications


    Nitric oxide (NO) is a kind of colorless, odorless, toxic gas that is insoluble in water. Since nitric oxide contains free radicals, this makes its chemical properties very active. When it reacts with oxygen, it can form a corrosive gas-nitrogen dioxide (NO2) that can react with water to form nitric acid. In industrial production, boiler exhaust gas, pipeline desulfurization and denitrification waste gas, and the plant environment are need to be monitored where there is NO leakage in real time. It is also needed for the environmental protection bureau to real-time monitor the enterprise nitric oxide gas emissions. At this time, it is very meaningful to use an industrial nitric oxide gas detector to monitor nitric oxide (NO).

    The nitric oxide (NO) detector can be a single gas detector or multi-gas detector which is also equipped with other gas sensor like oxygen sensor, LEL sensor and so on, to detect the concentration of NO in the air. It is selected according to the actual requirements.

    ATO portable nitric oxide gas detector adopts a pumping sampling method and uses a high-precision electrochemical sensor with excellent sensitivity and high repeatability. With on-site sound and light alarm function, the detector will give an instant alarm when the gas concentration exceeds the standard value, safeguard the workers at dangerous field operations.

    Basic Settings of Portable Gas Detector

    This video will show you the basic settings of ATO portable gas detectors including high/low alarm setting, language setting and time setting.

    Calibration of Portable Gas Detector

    This video will show how to calibrate the ATO portable gas detectors.

    Calibration of Fixed Type Gas Detector

    This video will show the calibration procedures of the ATO fixed type gas detectors.

    Existing reviews of Portable Nitric Oxide (NO) Gas Detector, 0 to 20/50/100 ppm
    What volume of gas is required to obtain an accurate reading?
    How much gas must be used to get a precise reading?
    What volume bag would this device need to be connected to in order for it to provide an accurate reading if, for instance, I collected gas from various locations in Tedlar bags (which have the same internal pressure as room air pressure), stored them, and then wanted to read the contents of each bag on this pump-type sensor?
    From: Rachel | Date: 09/09/2022
    Was this review helpful? Yes No (0/0)
    ATO Responded
    The volume of the bag shouldn't be too small if the gas detector needs to measure food packaging bags in order to prevent the bag from being easily sucked dry.
    You can look at the attached demo case to get the bag's measurements. The bag's volume and dimensions should roughly match those of the box in the video.
    One more thing: the additional probe required by the gas detector used to test the gas in the bag must be specified when ordering.
    Small and easy to carry
    This NO gas detector is small and easy to carry. The concentrations detected are also accurate. It's the one I've been looking for. Highly recommended!!!
    From: Colleen | Date: 03/08/2022
    Was this review helpful? Yes No (0/0)
    The role of nitric oxide gas detector
    Can I use your NO gas detector to check for ultra-high purity nitric oxide leakage?
    From: Paschak | Date: 08/11/2021
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, NO gas detector can detect ultra-high purity nitric oxide leakage, the detection range is 0-100% VOL.
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