The DLRO100H (1004-939) Micro-Ohmmeter runs on line power, for manufacturing and production applications where AC is always available. With a focus on user safety, advanced design features ensure the safe operation of the instrument in the most adverse conditions, including a CAT IV 600 V safety rating in accordance with IEC61010. The DLRO100H features DualGround protection, adding to the operators' safety by grounding both sides of the breaker under test. The tough design, intuitive interface and IP54 rating (with lid open) ensure reliability and ease-of-use in the most arduous of conditions. The DLRO100H also includes asset tagging (enter unique asset ID's using the DLRO100 Asset Tag Windows app), Bluetooth download and USB remote operation.