A sulfur dioxide gas detector can detect the concentration of sulfur dioxide (SO2) gas in ambient air. This equipment is generally used for personal protection in hazardous gas environments. SO2 gas is used in many industrial applications, including chemical processes, bleaching wood pulp and paper, food processing and waste disposal. In addition, sulfur dioxide is produced when coal and oil are burned and is produced by volcanic activity. Sulfur dioxide is recognized as a major pollutant that poses risks to workplaces and the environment.

Pros

Small and low cost SO2 gas detectors helps with worker safety.

SO2 gas detectors are available for less than $400.

SO2 gas detectors also helpful to monitor air quality during volcanic activity.

What Is a Sulfur Dioxide Gas Detector?

A sulfur dioxide gas detector is an instrument used to detect the concentration of sulfur dioxide in the air. The devices have a long-life battery, a large screen showing sulfur dioxide concentrations, and a belt clip attached to clothing. To protect users, these gas detectors also feature LED, vibration and buzzer alarms.

Sulfur dioxide gas detectors are also known as SO2 monitors, SO2 meters, sulfur dioxide sniffers, sulfur dioxide analyzers, and sulfur dioxide gas testers. These names all refer to the same device, a sulfur dioxide gas detector.

What Does a Sulfur Dioxide Meter Detect?

A sulfur dioxide detector senses sulfur dioxide (SO2) gas and displays the levels in parts per million (ppm).

What Are the Different Types of Sulfur Dioxide Gas Detectors?

Sulfur Dioxide Detector for Personal Protection

The majority of sulfur dioxide gas detectors are portable. These are small, battery-powered units with a sulfur dioxide sensor that can be clipped onto your clothes for personal protection.

Sulfur Dioxide Gas Monitor for Stationary Fixed Wall

Wall-mounted units provide continuous protection and warning of sulfur dioxide gas leaks. These devices are perfect for indoor uses, such as a petroleum refinery that generates SO2. If the levels pass the preset threshold (i.e., 5 ppm OSHA TWA), the unit will provide an LED and buzzer warning.

How Does a Sulfur Dioxide Gas Sensor Work?

A sulfur dioxide gas detector is composed of electronics and an SO2 sensor. The gas sensor converts the detected gas concentration to an electronic signal for analysis by the onboard microprocessor. After receiving the electrical signal, the processor displays the SO2 concentration reading. If the measurement exceeds the pre-set SO2 alarm value, the alarms are triggered.