This versatile Direct Push Rig is most applicable to indoor and difficult access borings. It's great for shallow soil vapor, water, and soil sampling and uses the reliable GH42 Soil Probing Hammer (same as the 5400 units). As you can see from the photos, the Geoprobe 420M can be mobilized by a crew of one and easily fits through standard-sized doorways as it is only 19" wide. It stands 62" high, and 94" with the probe cylinder fully extended. Consider this rig for your next indoor or difficult access borings!