^ servos lang. ok na ok na. makakaakyat na nang stairs. no need to resort on expensive tracks. may drawbacks pero nagawa ko na ito.
detecting toxicity is damn hell difficult. pwede co2, alcohol, smoke... then for complex gasses or chemical "SAMPLING" na lang gagawin nang robot para ma analyze yung sample sa "laboratory"
so it's a like all indoor terrain, hazmat sensing and sampling wirelessly controlled robot.... A.I.T.H.M.S.S.W. kiddin'