Hioki clamp on meters are best-in-class measuring devices incorporating Hioki’s expertise in current sensing technology. Use the CM4001 to easily clamp within crowded cables in order to reduce work time and improve safety. With guaranteed accuracy from 0.60 mA to 600.0 A, the CM4001 provides a one-stop solution for a variety of applications. A built-in comparator function also helps you find issues much faster.