An Earth Test measures the resistance of the earth, dependent on the earthing electrode's shape, material and the type and condition of the soil into which it is buried. Products such as the Megger DET2/2 are industry standard instruments for the measurement and conducting of earth grounding test, where it is vital to have high accuracy for earth electrode and soil resitivity testing. A range of equipment is available to hire from brands such as, Chauvin Arnoux, Megger, Fluke and T&R Test Equipment.