Range

sensitivity

described

Brand

model

50-5000ppm

50-300ppm

Semiconductor,Breath alcohol detectors; Gas leak detectors for factories, dry cleaners, and semiconductor industries

FIGARO

TGS822

50-5000ppm

50-300ppm

Semiconductor,Breath alcohol detectors; Gas leak detectors for factories, dry cleaners, and semiconductor industries

FIGARO

TGS2620

5-1000ppm

35-130ppm

Semiconductor,Breath alcohol detectors; Gas leak detectors for factories, dry cleaners, and semiconductor industries 

SGX

MICS-5524

ONE, Electrochemical ,common cross-interfering  gas,Use ETO gas sensor,

TWO ,common cross-interfering  gas,Use PID gas sensor,