Sulphur Dioxide (SO2)

Sulphur dioxide (SO2) – also called sulphurous anhydride – is present in many fields of activity such as the pulp and paper industry, power plants, the cooling industry and fossil energy combustion (coal and fuel). It is also used for wine growing application. Even if it can be naturally found near volcanoes, this gas is essentially anthropogenic.

Sulphur dioxide effects on health

Sulphur dioxide (SO2) is a colourless gas with a pungent fragrance that may cause breathing system and eyes irritation starting at 1 ppm! Even if it is corrosive and harmful, this gas is above all toxic. It has been classified as R23 (toxic by inhalation) and R34 (causes burns). Lastly, sulphur dioxide is very reactive with many solvents (alcohol, toluene), and particularly with water to produce sulfuric acid (H2SO4). SO2 is also responsible for acid rain.

Compatible products

Single gas
Cost effective

SST1 2&3 year model

The SST1 single gas detector provides up to three years of maintenance-free operation and is available in H2S, SO2, CO or O2 (2-year only) models.

Single Gas
Serviceable

SST1 Serviceable

The SST1 Serviceable offers one of the most cost-effective solutions on the market. With its 3-year replaceable battery and solid polymer sensor technology the SST1 offers a compact and modular design, while not compromising on its ruggedness.

Wireless charging
NFC

SST4 Micro&Mini

The SST4 range is a four-gas device, designed with simplicity, size and with the user in mind. With its compact yet rugged design the SST4 is always there when you need it.

Low costs of ownership
Single gas

PDM

The disposable PDM is a full-featured single gas detector that offers you unequalled value. The PDM single gas detector is your daily monitor for hazardous environments, because of its high reliability and user-friendliness.

Sustainable
Single gas

PDM+

The PDM+ is a personal sustainable single gas detector designed to detect Oxygen deficiency and the presence of toxic gas in the ambient environment.

Sustainable
Single gas

UNI Sustainable

The UNI Sustainable is a sustainable single gas detector that offers a simple portable solution for a wide array of toxic gases and O2 (oxygen) applications.

Many sensor options
Multi gas

POLI

The WatchGas POLI in pumped version is an advanced instrument with an integrated pump that enables a full range of sensors for a variety of applications, including confined space entry.

Safe area solution
Transportable

AirWatch Mk1.2

The AirWatch is your safe area solution for the monitoring of various gases. Based on the measurement values and alarms, equipment is switched on or off, data is logged and optionally employees are remotely informed of the gas concentrations present.

Wide range of sensors
Versatile

XDI

The XDI-F1 Gas Sensor is capable of utilizing a wide range of sensor cell types offering an unmatched number of gases that may be monitored. Standard 4~20mA signaling with CANbus address enables the sensors to be networked via the WatchGas Combi control system or customer preferred monitoring systems.

Wide range of sensors
Versatile

XDIwin

The XDI gas sensor is capable of utilizing a wide range of sensor cell types offering an unmatched number of configurations allowing for a simple stand-alone 4~20mA transmitter

Gas sensor
Gas transmitter

15J(win) / 30J(win)

The 30J enclosure has been designed to allow quick and easy access to its interior by adjustment of two allen screws, this factor is a major consideration when large system service and calibrations are being carried out.

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Sulphur Dioxide (SO2)