If I want to make a detection methane or Lpg plant in a domestic environment, what articles do I need?

You will need a detection central unit SE 230 Km (Methane) or SE 230 Kg (LPG). This central unit could be supported by the SE 296 Km (methane) or SE 296 Kg (Lpg) sensor whether you need to monitor more than one room. This sensor could work together with an unlimited number of equivalent sensors in a number equal to the environments in which they will have to be installed. .