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SS21F8 (HCHO)

SS21F8 is an electrochemical formaldehyde sensor capable of measuring concentrations from 0 to 10 ppm. It is ideal for portable instruments and indoor air quality monitoring applications.

KEY FEATURES
    • Measurement range: 0–10 ppm (Max overload: 20 ppm)
    • Output signal: 200 ± 50 nA / ppm
    • Response time: T90 < 30 sec
    • Resolution: ≤0.01 ppm (typical, electronics dependent)
    • Operating life: >24 months
    • Operating temperature: -10℃ to +40℃
    • Low cross-sensitivity (0% NH₃, 2% CO, 14% acetaldehyde)
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SS21F8 Formaldehyde Sensor – High-Precision HCHO Detection for Indoor Air Quality Applications
SS21F8 is a high-sensitivity electrochemical formaldehyde sensor designed to detect HCHO levels from 0 to 10 ppm.
It features a linear output (200 ± 50 nA/ppm), rapid response time under 30 seconds, and ultra-low resolution of ≤0.01 ppm.
With minimal cross-sensitivity to interfering gases such as ammonia (0%), carbon monoxide (2%), and acetaldehyde (14%),
SS21F8 ensures accurate performance in portable monitors and indoor air quality systems.
It offers more than 24 months of stable operation, making it ideal for use in air purifiers, HVAC controls, and environmental instruments.

Product Specifications

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