... detection technology, precision optics design.Simple Circuit Infrared CO2/CH4 Dual Gas sensor moduleMH-Z92 NDIR double-gases module DescriptionMH ... NDIR double-gases module is a universal, pump-priming gas sensor, which detects CO2,CH4 with the non-dispersive ... to operate. MH-Z92 is a universal infrared gas sensor made up of mature infrared absorptiongas detection technology, precision optics design, ...