COMBIMASS® GA-s hybrid eco is a desktop analyser without graphic displays. In the basic version it has a CH4 gas module of the hybrid series with the possibility of measuring one gas stream. By means of an upgrade option, we are able to increase the measuring range to two streams for such gases as methane, oxygen and hydrogen sulphide. It is mainly used for monitoring the biogas filter upstream of the CHP engine. Choice of plastic housing or, in a more expensive version, stainless steel.