Idan na'urar laser da na'urar telemeter ke fitarwa ta ratsa cikin gajimaren iskar gas na halitta, iskar methane za ta sha wannan na'urar laser. Ana mayar da na'urar laser ɗin da aka sha zuwa na'urar telemeter ta wani abu. Bayan tattara bayanai da sarrafawa, ana samun bayanai game da yawan iskar gas ta methane.