The Horizontal remote sensing test system e nka theknoloji ea spectral absorption ho bona ho tsoa ha carbon dioxide (CO2), carbon monoxide (CO), hydrocarbons (HC), le nitrogen oxides (NOX) ho tsoa mosing oa koloi. Sistimi e etselitsoe likoloi tse peli tsa peterole le diesel, 'me e khona ho bona ho se bonahale, particulate matter (PM2.5), le ammonia (NH3) ea likoloi tsa peterole le disele.
Sistimi ea tlhahlobo ea hole le Horizontal e na le mohloli o bobebe le yuniti ea tlhahlobo, yuniti e bonts'ang sebaka se nepahetseng, sistimi ea ho fumana lebelo/ho potlakisa, sistimi ea boitsebahatso ba koloi, sistimi ea phetiso ea data, sistimi ea mocheso e sa fetoheng ea khabinete, sistimi ea boemo ba leholimo le yuniti ea ts'ebetso, e ka laoloang hole ka marang-rang.