The sulfur dioxide (SO2) transmitter is designed for real-time sulfur dioxide gas monitoring in industrial and environmental applications. Equipped with a high-sensitivity gas sensor, it provides fast response and stable measurements, helping users monitor SO2 concentrations and identify potential gas hazards.

Multiple Signal Output Options

Multi-Layer Waterproof Protection
| Model | SISCO-GS-SO2-3002 |
| Power Supply | 10-30V DC |
| Output Signal | RS485/4-20mA/10-5V/10-10V (optional) |
| Measuring Range | 20ppm/2000ppm (optional) |
| Measuring Method | Imported sensor |
| Warm-up Time | ≥5min |
| Working Pressure | 90-110 kPa |
| Working Temperature | -20°C~50°C |
| Working Humidity | 15%RH-90%RH non-condensing |
| Humidity Accuracy | ≥3%RH (60%, 25°C) |
| Temperature Accuracy | ≤0.5°C (25°C) |
| Response Time | 20ppm: ≤45s |
| 2000ppm: ≤70s | |
| Power Consumption | 0.18W |
| SO2 Resolution | 20ppm: 0.1ppm |
| 2000ppm: 1ppm | |
| Stability | ≤2% signal value/month |
| Zero Drift | 20ppm: ≤±0.5ppm |
| 2000ppm: ≤±4ppm | |
| Temperature Measurement Range | -40°C~80°C |
| Humidity Measurement Range | 0-100%RH |
| Detection Accuracy | ±5%FS/±10% |
| Repeatability | ≤2% |
| Weight | 0.5kg |
Q1: What is a sulfur dioxide (SO2) transmitter used for?
A1: A sulfur dioxide (SO2) transmitter is used to monitor sulfur dioxide concentrations in industrial and environmental environments. It is commonly installed in power plants, smelting facilities, chemical plants, sulfuric acid production facilities, and industrial exhaust gas monitoring systems.
Q2: What measuring ranges are available for this SO2 sensor?
A2: This SO2 gas sensor offers optional measuring ranges of 20 ppm and 2,000 ppm, allowing users to select a suitable range based on their sulfur dioxide monitoring requirements.
Q3: What output signals does the sulfur dioxide transmitter support?
A3: The transmitter supports optional RS485, 4–20mA, 0–5V, and 0–10V output signals. These interfaces allow integration with PLCs, industrial controllers, data acquisition systems, and environmental monitoring equipment.
Tips: Can the SO2 transmitter be used in outdoor or humid environments?
Yes. The SO2 Transmitter features multiple waterproof sealing treatments and a four-core waterproof shielded cable, helping protect the device against moisture and environmental interference. It is suitable for demanding industrial monitoring environments. Actual installation suitability depends on the product's rated protection level.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
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.