Profile: Kessler Soils Engineering Products, Inc. specializes in the manufacturing of soil testing equipments. Our products include dynamic cone penetrometer(DCP), gas institute DCP, sowers DCP, wildcat DCP, deflectometers, asphalt testers, magnetic rulers, SAPPER (semi automated portable penetrometer electronic recorder) and geoguages. Our DCP have an 8 kg (17.6 lb) hammer and/or a 4.6 kg (10.1 lb) hammer to better evaluate weak soils. The DCP is primarily used to determine in place soil shear strength in road construction. It has a CBR range from less than 0.5 to 100% and bearing value range from 430 to 10,800 psf. Our SAPPER is a device that automates the DCP with an 8 kg hammer at a rate of about one blow every two to four seconds. Data is collected and displayed with an on-board micro processor. This makes it easy to record, display and retrieve the penetration rate, blows & correlations to CBR as well as other data about the test. It comes with a 37-inch spring steel drive rod, which can be driven into the ground up to 36 inches. The SAPPER is comprised of a DCP encased in two aluminum channels which can be mounted to a vehicle hitch.