Industrial SO2 gas monitoring with WiFi connectivity and local alarm

Industrial SO2 Gas Sensor — WiFi, Local Alarm

The SO2-FI-101 is an industrial sulfur dioxide (SO2) gas sensor with WiFi connectivity. It continuously monitors SO2 concentration, triggers a local beeper alarm on threshold breach, and reports to a cloud dashboard in real time. For indoor industrial environments with reliable WiFi coverage.

Why SO2 Monitoring Matters

Sulfur dioxide is a colorless, toxic gas produced during combustion of sulphur-containing fuels and as a byproduct of many chemical manufacturing processes. At low concentrations it is a respiratory irritant; at higher concentrations it is immediately dangerous to life. Continuous fixed-point monitoring provides both worker protection and the compliance audit trail required by regulatory bodies.

Two-Layer Alert System

• Local beeper alarm — on-device audible alert triggers immediately when SO2 crosses the threshold, warning nearby workers without waiting for a control room or app response.
• Cloud dashboard alert — simultaneous remote notification to safety officers and managers, with full event log including timestamp, concentration, and duration.

WiFi Only — for Indoor Industrial Environments

The SO2-FI-101 is the WiFi-only variant, suited for indoor plants, production halls, laboratories, and any covered industrial space with stable WiFi coverage. For outdoor, remote, or WiFi-unreliable locations, use the SO2-4G-101 which adds a 4G modem with automatic failover.

Use Cases

• Chemical plants — indoor SO2 handling, storage, and process areas
• Oil refinery process areas — indoor monitoring of hydrodesulfurization and treatment units
• Power plant boiler rooms — fixed monitoring at flue gas exposure points
• Paper and pulp mills — digester room and chemical recovery areas
• Laboratory and production halls — areas where SO2 is used or generated as a process byproduct
• Worker safety compliance — fixed-point monitoring at confined space entries and high-risk areas

Key Specifications

• Target gas: Sulfur dioxide (SO2)
• Sensing technology: Electrochemical
• Connectivity: WiFi
• Local alarm: Audible beeper — triggered on threshold breach
• Enclosure: Industrial wall-mount — manufactured by Ahoy
• Installation: Wall-mounted at breathing zone height
• Dashboard: Cloud-based — real-time readings, alerts, historical log