The ACRG uses four commercially available optical analysers within the UK DECC Network - the Picarro G2301 (CO₂ and CH₄), G2401 (CO₂, CH₄ and CO), and G5310 (N₂O and CO) and the LGR enhanced performance analyser (N₂O and CO). Further information on the analysers is available on the Los Gatos and Picarro websites. Two Aeris Mira Ultra analysers have been purchased as part of the GEMMA project - these are undergoing lab testing prior to deployment in the field.