The Geoprobe® Model 7822DT is a powerful rubber track machine with a compact platform for increased site access. The Model 7822DT is equipped with the many standard features that Geoprobe® owners enjoy along with many new advantages to provide even higher utilization in all types of field conditions. The proven, durable 20-series track carrier moves the machine around field sites at nearly 8 kilometers per hour either by remote control or a tethered wire. The heart of all Geoprobe® direct push machines is the percussion hammer and the Model 7822DT is no different. Geoprobe® engineers have designed the powerful Geoprobe® GH64 percussion hammer with two significant features: a Modular Percussion Power Cell and integrated two-speed, bi-directional rotation. In addition, the GA4000 Auger Head featured on the Model 7822DT has 4,000 ft lbs of rotational torque.