Battery-powered Hall-effect clamp-on probe measures AC or DC current from 5A to 400A. Maximum conductor size: one 1.18" (30mm) or two 0.98" (25mm). Output is 1mV per amp dc or ac. Accuracy: approx. (5% + 2.5A), 5A to 400A, dc to 62 Hz. Useable to 400Hz
