Megger manufactures three-terminal earth and ground resistance testers. It is a product which is from the det3 contractor series. It has an attached rod technique with testing capability. There are two and three point testing areas in the product. Three-terminal earth and ground resistance testers is a complete with leads, stakes and rugged carry case. There are various models available in three-terminal earth and ground resistance testers. The det3 contractor series includes, det3ta that features an analog display, det3tc that is capable of testing on-site grounds without disconnecting the utility connection. Det3td is for basic requirements it provides digital ground testing and bond test capabilities. The salient features of the three-terminal earth and ground resistance testers:
