... Simple operation 2.Double work mode 3.Various test coils 4.Test: magnetic parameter, Br, Hcb, Hcj, ... so on, and could meet different requirements on test function, precision, power capability, reliability, efficiency ... the course entirely.The speed can be chosen: Can choose test period from 5 ... practical and friendly: WINDOWS and DOS two test software platforms, reflect practical, reliable, succinct ...