What does WANDI Korea do?

WANDI Korea is the official Korean distributor of WANDI environmental and gas measurement instruments, operated by RS Korea Co., Ltd. We provide sales, calibration, repair, installation, and technical support for portable and fixed multi-gas detectors and air quality monitoring systems, exporting to more than 20 countries with over 5,000 delivery records.

What products do you offer?

We supply portable multi-gas detectors (EDW100, EDW500, Gas Tiger series), fixed multi-gas detectors (FIX800, FIX900, FIX-AP), air quality monitoring systems (FIX5000), and gas leak detectors (GLD series) for industrial safety and environmental measurement.

Which gases can be measured?

Our instruments measure oxygen (O2), carbon monoxide (CO), hydrogen sulfide (H2S), combustible gases (EX), carbon dioxide (CO2), ammonia (NH3), and volatile organic compounds (VOC), among other hazardous and combustible gases found on industrial sites.

Do you provide calibration and repair services?

Yes. Beyond product sales, WANDI Korea provides in-house and national certified calibration, repair, installation, and ongoing technical support. Calibration and repair requests can be submitted through the quote/calibration/repair pages on our website.

How can I get a quote for a gas detector?

You can request a quote directly through the quote page on our website or through a nearby dealer. Let us know your application and target gases, and we will recommend a suitable model.

In which fields are the products used?

They are used across a wide range of industrial sites including laboratories, factories and plants, hospitals, military facilities, livestock and wastewater treatment, and construction sites for worker safety and environmental monitoring.

Sulfur Dioxide (SO2) Gas Hazards & Worker Protection with WANDI EDW500

Sulfur dioxide (SO2) is a toxic gas generated in petroleum refining, smelting, and power generation processes, causing respiratory irritation from just 2 ppm. The WANDI EDW500 is an IECEx-certified 5-gas portable detector providing immediate worker protection against SO2 leaks.

Sulfur dioxide (SO2) is a toxic gas generated in large quantities during petroleum refining, smelting, coal-fired power generation, and sulfuric acid manufacturing. Even at 2 ppm, respiratory irritation begins, and it can cause fatal bronchial damage to workers. The WANDI EDW500, with its IECEx TPS 25.0057X international explosion-proof certification, provides immediate protection in SO2-generating environments.

What is Sulfur Dioxide (SO2) Gas?

Sulfur dioxide (SO2) is a colorless gas with a pungent odor generated when sulfur-containing materials combust. Major sources include petroleum and coal combustion, metal smelting, sulfuric acid manufacturing, pulp and paper mills, and food/beverage preservative processing. SO2 reacts with moisture to form sulfuric acid (H2SO4), causing severe chemical burns to skin, eyes, and airways.

Health Effects of SO2

산업시설 굴뚝 이산화황 대기오염 발전소 연기 — 발전소·제련소 굴뚝 — 이산화황(SO2) 누출 위험 환경 (출처: Unsplash / Mike Marrah)

Concentration (ppm)	Health Effects	Standard
0.5–1	Detectable sulfur odor	Detection
2	Eye/nose/throat irritation, coughing	OSHA PEL / Korean standard
5–10	Severe coughing, dyspnea	Warning level
≥100	Immediately life-threatening (NIOSH IDLH)	Immediately Dangerous

Source: NIOSH IDLH: 100 ppm, OSHA PEL: 5 ppm, ACGIH TLV-TWA: 0.2 ppm

WANDI EDW500: Optimal Solution for SO2 Sites

IECEx Explosion-Proof Certification — Zone 0 Safe

화학공장 WANDI EDW500 5가스 측정기 납품 현장 — 화학공장 EDW500 5가스 측정기 납품 사례 — 제이솔루션 (충북 괴산)

The EDW500 holds IECEx TPS 25.0057X certification with rating Ex da ia IIC T4 Ga (Zone 0, EPL Ga). It can be safely used in the most hazardous environments including petroleum refineries and smelters where SO2 is generated.

5-Gas Simultaneous Measurement Including SO2

A single EDW500 simultaneously monitors: SO2, O2, CO, H2S, and EX. In sulfur-related processes, SO2 and H2S can be generated simultaneously, making multi-gas detection essential.

🏆 IECEx International Explosion-Proof Certification