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    Portable Hydrogen (H2) Gas Detector, 0 to 500/1000/2000 ppm

    4.8 out of 5 based on 7 reviews | Write a review
    Portable hydrogen (H2) gas detector draws the gas sample by a micro pump, with high accuracy and reliability, measurement ranging from 0 to 500ppm, 1000ppm, 2000ppm, 5000ppm or high concentration range 0-100% VOL for your choice. Real-time LCD display, audible, visual & vibrating alarm, durable and compact design, easy to carry and operate. High precision H2 measuring range 0-10ppm with 0.001ppm resolution is also available.
    Free Shipping Worldwide
    Delivery date: 6-20 days


    • 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-H2
    Sampling Method Pump type, flow rate can be up to 1L/min, ten grades of pumping suction for selection.
    Gas Hydrogen (H2)
    Range (Optional) * 0 to 10 ppm, 0 to 500 ppm, 0 to 1000 ppm, 0 to 2000 ppm, 0 to 5000 ppm, 0 to 10000 ppm, 0 to 100% VOLSee Note0 to 100% LEL
    Resolution 0.001ppm (0-10ppm), 0.1ppm (0-500ppm) or 1ppm (0-1000/2000/5000/10000ppm), 0.01% (0-100%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
    Accessories (Optional) Calibration kit - gas pressure regulator (calibration gas cylinder NOT included)
    • Body Material: Brass
    • Max. Input Pressure: ≤15MPa
    • Max. Output Pressure: 0.25MPa
    • Flowmeter Range: 0.1-1.5 L/min
    • Mounting Connection: Inlet port: W21.8-14; Outlet port: Ф6 flexible tube


    For the measuring range of 0-100%VOL, it measures the percentage of existing Hydrogen in the detection environment.
    * If you need a H2 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 hydrogen gas leak detector with alarming is suitable to monitor the concentration of H2 in the chemical workshop, hydrogen bottle tank storage area, new energy reaserch and development, laboratory, automobile industry, glass industry, fuel cell industry, and so on.

    Hydrogen H2 Gas Detector ApplicationsTips: Use Case - Portable Hydrogen (H2) Gas Detector for Fuel Cell Company

    AG亚洲A new energy company has been engaged in research and development, testing and production of various fuel cells for many years. The company has many hydrogen pipelines for the hydrogen (H2) is the main power source in the production process. To prevent the substandard process from the leakage of the hydrogen, the engineer made an inquiry about detecting the leakage of hydrogen to us.

    They needed a portable hydrogen detector to detect H2 leaks at the ports of each pipeline, record the detection value in real time and save a set of data every 2s recording interval. Furthermore, they also required transmitting the data to computer for the analysis.

    After the communication with the engineers based on their requirements, we recommended them a portable hydrogen (H2) gas detector ATO-SKY2000-H2, with measuring range of 0-1000ppm and resolution of 1ppm and also with data transmission and storage function.

    AG亚洲After using this H2 gas detector for a period of time, they were very satisfied with the detection results. The hydrogen gas detector not only is accurate in detection, fast in response time, but also real-time records the detecting value and save the data.

    AG亚洲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 Hydrogen (H2) Gas Detector, 0 to 500/1000/2000 ppm
    Portable and easy to operate, it is really helpful in my work.
    Bought this gas detector for work. It isn’t cheap, but works well. Portable and easy to operate, it is really helpful in my work.
    From: Noah S | Date: 19/07/2018
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Dear Noah, thanks for your ordering and comment. To ensure the accuracy of the measurement, our gas detectors adopt the high-performance sensor so the cost is relatively higher. Good gas detector deserves this price.
    Inquiry for Hydrogen (H2) Gas Detector
    Can you provide H2 gas detector with lower detection range and high resolution 0.001 and high accuracy  /-2% full scale?
    From: Riley | Date: 05/08/2019
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Yes, we can provide this H2 detector with the measuring range of 0-10ppm and the resolution of 0.001ppm.
    Hydrogen gas detector
    Does your H2 gas detector continuously check the hydrogen leakage automatically or we need to check it manually?
    From: Joel | Date: 10/09/2019
    Was this review helpful? Yes No (0/0)
    ATO Responded
    This detector can continuously check the hydrogen leakage automatically.
    Hydrogen gas detector 0-100%VOL
    Can we use your hydrogen gas detector to measure hydrogen in Air via selecting 0-100%VOL measuring range?
    From: Rob | Date: 20/04/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    No, the range 0-100%VOL is usually used to measure the purity of H2 in a single gas, so it is not suitable for measuring H2 in an air mixture.
    Using H2 leak detector for refrigeration piping system
    Hi. We are a chiller manufacture and we currently use a 95-5 nitrogen-hydrogen gas mixture to pressurize and leak test our refrigeration piping systems. We use the H2 leak detector to find out the leaks and was curious if you had any experience using this equipment for that purpose?
    From: Jed | Date: 18/05/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Hi, Jed. You are welcome, but sorry to tell you, our portable hydrogen gas detector does not support H2 leaks test of refrigeration piping systems.
    A technical inquiry regarding your portable hydrogen gas detector (0-2000ppm)
    Hi. I have a technical inquiry regarding your portable hydrogen gas detector (0-2000ppm): what other gases can cause interference with the detection of hydrogen in this sensor? For example, we'd like to monitor hydrogen (0-2000ppm) in an exhaust gas stream that contains 73% N2, 12% O2, 10% H2O, 5% CO2, 2000ppm CH4, 500ppm CO, 500ppm NO and 750ppm NO2. Would the detector foul with these gases present?
    From: Scott | Date: 10/06/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Hello, Scott. In your case, CO will interfere with the H2 detection. If there is 500 ppm of CO in the environment, then even if no H2 exists, the H2 gas detector reading will show 2000ppm.
    What is the lowest detection range for your H2 Gas Detector with 0-500ppm?
    What is the lowest detection range for your H2 Gas Detector with 0-500ppm?
    From: Gavin | Date: 07/07/2020
    Was this review helpful? Yes No (0/0)
    ATO Responded
    Hi, Gavin. It can detect 2 ppm at least.
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