For the price of the BSIDE ESR tester you can buy a nice modern DDS function generator, frequency meter....
and apply my ONE RESISTOR ESR test method, at the frequency you want, with the waveform you want, sine, triangular, square, ha ha
One does not need to measure ESR every day.... maybe not even every month...,
and a signal generator + oscilloscope is all it takes.
The signal applied to the capacitor does not even need to have a DC offset.
Electrolytic capacitors, although polarized, are NOT schottky diodes. They can take a few millivolts of reverse voltage without losing their capacitance.