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SS2158 (SO₂)

Electrochemical SO₂ Sensor (0~20ppm)

SS2158 is an electrochemical sulfur dioxide (SO₂) sensor with a measurement range of 0–20 ppm, optimized for both portable and fixed detectors with built-in H₂S interference filter.

KEY FEATURES
    • Measurement range: 0–20 ppm (Max overload: 100 ppm)
    • Output signal: 250 ± 100 nA / ppm
    • Response time: T90 < 30 sec
    • Resolution: <0.1 ppm (typical)
    • Built-in H₂S filter (1000 ppm·hours capacity)
    • Long-term output drift: <15% per annum
    • Expected operating life: >24 months in air
    • Operating temperature: -20℃ to +50℃
Product Inquiry

SS2158 Sulfur Dioxide Sensor – High-Performance SO₂ Detection with Built-in H₂S Filter
SS2158 is a high-accuracy electrochemical gas sensor designed to detect sulfur dioxide (SO₂) in the range of 0 to 20 ppm.
It features a linear output of 250 ± 100 nA/ppm, a fast response time under 30 seconds (T90),
and a typical resolution of less than 0.1 ppm.
The sensor includes a built-in H₂S interference filter rated for 1000 ppm·hours, ensuring reliable operation in complex gas environments.
With long-term output drift below 15% per annum and a lifespan of over 24 months in air,
SS2158 is ideal for use in industrial safety monitors, ambient air quality devices, and automotive emission control systems.

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