The K2434 is a 100A AC Leakage Clamp Meter low cost meter and has a measuring range from 0.1mA to 100A. Other features include a frequency filter switch to eliminate the effect of harmonics and data hold. This is the ideal meter to be used when checking Insulation Resistance on live circuits. Accessories: Carrying Case AAA Batteries Instruction Manual COC Features : Ø28mm Cable Measures AC current up to 100 Amps Frequency Response from 40Hz to 400Hz Provides filtering function to remove high frequency generated by such equipment as inverters Data Hold Function Sleep mode prevents unnecessary power consumption Meter can perform the function of an Insulation test without breaking the circuit