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    Portable Sulfur Dioxide (SO2) Gas Detector, 0 to 50/100/1000 ppm

    The sulfur dioxide detector is a high accuracy portable gas detector. It can measure sulfur dioxide(SO2) with a range from 0 to 20/50/100/500/1000 ppm. The handheld SO2 detector is equipped with a back clip and silicone case, easy to carry, suitable for chemical processes, bleaching wood pulp and paper, food processing, and waste treatment.
    SKU: GD200-SO2
    i h
    🚚 Free shipping
    🔙 30-day returns
    📅 Delivery: 7-12 days

    Handheld gas detector provides sulfur dioxide gas monitoring with high accuracy sensor, LCD display, easy readout, small & portable design, and convenient to carry. Portable SO2 detector is widely used in many industrial applications including chemical processes, bleaching wood pulp and paper, food processing, and waste treatment.

    Handheld NH3 gas detector

    Gas detectors can detect sulfur dioxide (SO2) quickly

    • sisco portable sulfur dioxide (SO2) gas detector has an LCD dot matrix display to directly read out the gas type, unit, concentration, local time, etc.
    • English/Chinese operations are supported.
    • Gas concentration unit PPM and mg/m3 can be shifted quickly.
    • Built-in micro-sampling pump, 10 grades of suction are available.
      Explosion-proof certification.
    Portable ammonia gas detector

    USB interface to transfer data at high speed

    • The handheld sulfur dioxide detector can download and print the stored data (optional).
    • There is no need for personnel to manually record data in real-time, and the data is automatically stored in the instrument.
    • Historical data can be viewed on the instrument or downloaded to a computer.
    • USB interface, fast and convenient charging.


    Portable NH3 gas detector detailsPortable NH3 gas detector details


    The portable gas detector is designed for detecting the concentration of sulfur dioxide (SO2) in the air. sisco handheld sulfur dioxide detectors can be used for personal protection in hazardous gas environments, as well as in many industrial applications including chemical processes, bleached wood pulp and paper, food processing and waste disposal.

    Portable multi gas detector applications

    Model GD200-SO2
    Gas Sulfur Dioxide (SO2
    Range 0-20ppm, 0-50ppm, 0-100ppm, 0-500ppm, 0-1000ppm (Optional)
    Resolution 0.01ppm (0-20/50ppm), 0.1ppm (0-100ppm), 1ppm (0-500/1000ppm)
    Accuracy ≤±3%F.S.
    Display LCD dot matrix display, with display of gas type, real time gas concentration, gas unit.
    Backlight Time of the backlight is settable when the alarm the backlight will auto on.
    Data Logging (Optional Function) Data logging with adjustable interval, and available for data downloading to PC through USB cable.
    Alarms Sound: 85dB, Light: LED, low alarm: blue, high alarm: red (Alarm point is settable according to customer requirement.)
    Operation Language Chinese/English
    Gas Unit Gas units ppm and mg/m3 are switchable
    Battery 3.6V 2300mAh lithium polymer rechargeable battery, for toxic gas: 14h continuously, for combustible gas: 10 h continuously, charging time: 4-6h
    Charger Travel charger with USB. Typical charge time 4-6 hours.
    Explosion-proof Grade Exia ll CT3
    Case Material ABS+PC
    Protection Grade IP65
    Operating Temperature -20℃~50℃
    Operating Humidity 0~95%RH (non-condensing)
    Dimension 131*85*35mm
    Weight 240g

    Q1: What is a gas detector?
     A gas detector is an instrument for gas leakage concentration detection, including a portable gas detector, handheld gas detector, fixed gas detector, online gas detector, etc.

    Q2: What does a gas detector detect?
    A2: Combustible gases: Natural gas (methane), liquefied gas, coal gas (hydrogen), acetylene, pentane, alkynes, acetone, toluene, alcohols, hydrocarbons, light oil, etc.
    Toxic gases: Carbon monoxide, hydrogen sulfide, ammonia, chlorine, oxygen, phosphine, sulfur dioxide, hydrogen chloride, chlorine dioxide and other toxic and harmful gases.

    Q3: What is ppm of gas detector?
    A3: Parts per million or "ppm" is often used as a fractional measure of concentration. For example, a methane (molecular) concentration of 2% means that 2 out of every 100 air molecules are methane. Likewise, a methane concentration of 2 ppm means that 2 out of every 1 million air molecules are methane.

    Tips: What is the sulfur dioxide (SO2) gas detector used for?

    The sulfur dioxide gas detector is a monitoring instrument for sulfur dioxide gas. Since sulfur dioxide is a colorless gas with a strong pungent odor, it is one of the main pollutants in the atmosphere. It is also produced in many industrial processes. When coal and oil are burned, sulfur dioxide is generated. When SO2 dissolves in water, it will also sulfurous acid is formed, causing acid rain. Therefore, sulfur dioxide gas detectors are widely used. The SO2 detector can help us avoid some accidents encountered in our lives and reduce the risk index to the lowest point.

    SO2 gas detector can detect sulfur dioxide concentration and automatically alarm. It is also a monitoring weapon to protect the environment, which can detect the source of pollution emitted by factories and remediate them.


    Thank you for buying industrial test and measurement equipment on, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.

    What is covered?

    SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

    What is not covered?

    • Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than SISCO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by SISCO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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