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    Portable Nitrogen (N2) Gas Detector, 0 to 100% Vol

    5 out of 5 based on 8 reviews | Write a review
    Portable N2 gas detector, pump suction type, suitable for Nitrogen gas leakage detection with 0 to 100% Vol measuring range, and give an alarm with sound, light and vibration. Light & compact Nitrogen gas detector, high accuracy, fast response, and good cost performance.
    Free Shipping Worldwide
    Delivery date: 6-20 days

    Portable Nitrogen (N2) gas detector take sample by built-in pump and has measuring range of 0-100% VOL, fast and accurate measurement and favorable 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 ATO-SKY2000-N2
    Sampling Method Pumping suction, flow rate can be up to 1L/min, ten grades of pumping suction for selection.
    Detection Principle Electrochemistry
    Gas Nitrogen (N2)
    Range (Optional) 0-100% VOL
    Resolution 0.01% VOL
    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
    (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)
    Dimension 205*75*32mm
    Weight 300g
    Warranty 12 months

    * If you need a N2 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.


    Portable Nitrogen gas detector is used for the N2 concentration detection in the electronic component storage, Nitrogen tank area, food packaging, Nitrogen cylinder and tank purity measurement, laboratory, etc.

    Nitrogen N2 Gas Detector ApplicationsTips: Why you need a Nitrogen (N2) gas detector?

    Nitrogen (N2) is usually a colorless, odorless gas and generally it is less dense than air. Nitrogen is one of the main components of air, accounting for 78.08% (volume fraction). Under the standard atmospheric pressure, when nitrogen gas is cooled to 195.8℃, it turns into a colorless liquid; when cooled to 209.8℃, the liquid nitrogen becomes a snowy solid. Nitrogen is often used as a preservative because it is chemically inert and difficult to react with other substances at room temperature.

    Nitrogen seems to be harmless, but it is still dangerous. If the concentration of nitrogen in the air is too high, the pressure of oxygen in the inhaled air will drop, thus causing hypoxia and asphyxia. When the concentration of inhaled nitrogen is not too high, the patient initially feels chest tightness, shortness of breath and weakness; then there are others symptoms: irritability, extreme excitement, running, screaming, absent-minded, and gait abnormality, known as "nitrogen tincture", entering a drowsiness or coma. When the inhaled nitrogen is at a high concentration, the patients can quickly become unconscious and die from respiratory and cardiac arrest.

    It is really necessary to detect the nitrogen concentration before personnel enter tanks, confined spaces, or other areas of high concentration. ATO portable nitrogen gas detector adopts the pumping sampling method, which can quickly and accurately detect the concentration of nitrogen and give the alarm. Thus, the personnel can also check the data in the N2 gas detector and make sure the nitrogen concentration in the confined space meets the standard before the operation, so as to ensure the safety of personnel.

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

    Existing reviews of Portable Nitrogen (N2) Gas Detector, 0 to 100% Vol
    The N2 gas detector arrived on time with good packaging.
    The N2 gas detector arrived on time with good packaging. Use it to detect the gas leakage in the Nitrogen tank area. Light, portable and easy to use. Works as advertised. The detector is great helpful to find the danger and gives us sound and vibrating alarm.
    From: Hans | Date: 29/10/2019
    Was this review helpful? Yes No (0/0)
    Portable gas detector working pressure
    Can your portable gas detector work under (7-8 bar) pressure?
    From: Niklas | Date: 25/11/2019
    Was this review helpful? Yes No (0/0)
    ATO Responded
    No, it can not work properly because the pressure is too high (7-8 bar). Our portable gas detectors can work only under pressure of 1 bar.
    N2 gas detector flow rate
    I am very interested in better understanding the different pumping speeds on your N2 gas detector.  Your literature indicates that there are ten different speeds that can be selected, can this setting impact the measurement sensitivity?
    From: Josh | Date: 26/04/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Hi, Josh. Our gas detector pumping speed is 750ml/min, and both flow & pumping speeds will Not affect measurement sensitivity.
    I’m looking for an air and nitrogen leak detector...
    I’m looking for an air and nitrogen leak detector – we have installed some equipment that produces nitrogen from air and we would like to use a leak detector (from both air and nitrogen) to find and fix leaks in the entire systems. Please let me know if you have devices that may help me.
    From: Jorgen | Date: 08/05/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Hi, Jorgen. You are welcome. Here you are recommended to use our Portable Nitrogen (N2) Gas Detector with 0 to 100% Vol measuring range, but please note that it cannot measure the N2 below 1%VOL concentration. And our N2 gas detector can set High and Low alarm points, so once the Nitrogen leakage concentration exceeds the alarm point, the detector will sound an alarm to let you know.
    Portable Nitrogen (N2) Gas Detector
    Can your N2 sensor detect nitrogen in the presence of other nitrous gases like NO and NO2 ?
    From: John | Date: 21/05/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, our N2 detector (0-100% Vol) works and the other nitrous gases like NO and NO2, will not affect the measurement.
    N2 gas detector
    Hi. I'm looking for an N2 gas detector with an accuracy of at least 0.5% - do you have?
    From: Wesley | Date: 01/06/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Hi, Wesley. Unfortunately no, we don't have it and our N2 gas detector accuracy is ≤ ±3% F.S.
    I require a gas sensor that can detect N2 trace in an Ar atmosphere.
    I require a gas sensor that can detect N2 trace in an Ar atmosphere. Do you have an appropriate sensor?
    From: Milton | Date: 19/08/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Unfortunately, our gas detector can only measure the gas N2 in air or a single gas N2, Not in an Ar atmosphere.
    Portable Nitrogen Gas Detector data logger
    For your Portable Nitrogen Gas Detector, does it have the option to record measured values like a data logger and then transmit the recorded values Wireless to user PC?
    From: Paul | Date: 14/09/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, our gas detector has the option to record measured values like a Data logger and then transmit the recorded values wirelessly to user PC. We can add a wireless module to the detetcor, so you can monitor and record data on your pc, but this option needs additional payment.
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