Hydrogen sulfide sensor
A hydrogen sulfide sensor or HS sensor is a gas sensor for the measurement of hydrogen sulfide. Principle. The HS sensor is a metal oxide semiconductor (MOS) sensor which operates by a reversible change in resistance caused by adsorption and desorption of hydrogen sulfide in a film with hydrogen sulfide sensitive material like tin oxide thick films and gold thin films. Current response time is 25 ppb to 10 ppm < one minute. Applications. This type of sensor has been under constant development because of the toxic and corrosive nature of hydrogen sulfide: Hydrogen sulfide sensor A