FC-22-I Noxious Gas MQ-135 Ammonia Gas Sensor Module - Blue + Silver
Model FC-22-I Quantity 1 Color Blue + silver Material PCB Features Gas sensitive material: SnO2 conductivity increase according to noxious gas concentration. MQ135 sensor also sensitive to sulfide benzene steam smoke etc. Specification With power and TTL signal output instruction. With TTL output and AO analog output. Effective signal is low level. Analog output voltage: 0~5V. Quick response recover. Application Widely use in household and environment. Great for Arduino DIY. English Manual/Spec Yes Packing List 1 x Module