Hi, what is the differece Fluke 1587 between other models ?
Both the Fluke 1587 and the Fluke 88 meters have 10 Megohm input impedance, theoretically, both will perform equally regarding not loading circuits.
The Fluke 1587 is 2 tools in one: meter and insulation meter.
1587 includes Low Pass Filter for AC signals: blocks unwanted voltages when measuring AC voltage and AC frequency to provide accurate measurements on inverters and variable-frequency motor drives.