Seller winsensor

our products includes: gas sensor and module: detected gases: * oxygen (o2); * carbon dioxide gas (co2); * toxic gases: co,h2s,nh3,hcl,so2,no2,cl2... etc. *combustible gases such as methane(ch4), propane(c3h8), butane(c4h10), hydrogen(h2) * air quality: voc, eto, ozone(o3), alcohol(c2h5oh), smoke, formaldehyde, toluene, acetone, benzene…etc. ? flow sensor ? pir sensor ? humidity sensor ? think film circuit