I-GTJZ yesikhulumi esizihambelayo sochungechunge siwuhlobo lwemishini yokuphakamisa ugesi ezenzakalelayo.Isetshenziswa ekufakweni okubanzi okusemoyeni, ukunakekelwa nokuhlanza eziteshini, amahhotela, amadokhu, izikhumulo zezindiza, izinkundla zemidlalo kanye namabhizinisi amakhulu, njll.