The model PGD3-IR portable multi-gas detector from Enmet (USA) incorporates an infrared combustible gas sensor for 0-100% LEL or 0-100% by volume methane, and an infrared sensor for carbon dioxide at various optional ranges from ppm concentrations to 100% by volume CO2. In addition, the PGD3-IR can also be supplied with an oxygen sensor and up to two electrochemical sensors for various toxic gases, such as, CO, H2S, NO2, SO2, etc. The instrument has audio/visual alarms and complete data logging capability. Other features include a rugged enclosure with protective rubber boot for high impact resistance, and IP66 ingress protection rating. The PGD3-IR is ATEX certified and CE approved.