SS21F8 (HCHO)

Electrochemical Formaldehyde Sensor (0–10ppm)

DESCRIPTION

The SS21F8 is a high-sensitivity electrochemical sensor designed to measure formaldehyde (HCHO) in the 0–10 ppm range. It provides a fast T90 response time of under 30 seconds and a high resolution of 0.01 ppm. With low cross-sensitivity to major gases such as ammonia, carbon monoxide, and acetaldehyde, this sensor is ideal for accurate indoor air quality monitoring. Suitable for portable devices, air purifiers, and IAQ systems, it offers over 24 months of expected lifespan with excellent stability.

KEY FEATURES

- Measuring Range: 0–10 ppm (Max overload: 20 ppm)
- Output Signal: 200 ± 50 nA / ppm
- Response Time: T90 < 30 sec
- Resolution: ≤0.01 ppm (typical, dependent on circuit)
- Operating Life: ≥24 months (in air)
- Operating Temperature: -10℃ ~ +40℃
- Cross-sensitivity: NH₃ 0%, CO 2%, Acetaldehyde 14%