FC4-H2-20000 H2 Sensor offers 5-year long service life, micro fuel cell technology ensures high precision, fast response (T90 <60s), and selective hydrogen detection with 0.3±0.1 nA/ppm sensitivity. Ideal for portable & residential hydrogen detectors, power generation systems, and fire safety in energy storage facilities. Resistant to poisoning, operates in -40℃ to 70℃, maintenance-free with excellent stability and anti-interference performance, perfect for industrial safety and clean energy applications.More