At 1kHz in your photo. Useful for evaluation to some purposes. Like if it was a non polar to put in a passive speaker crossover.
But ESR is a 100kHz textbook characteristic. There the lytics lose purposeful abilities and pure ESR is revealed for all to see. To force 100kHz impedance test on the DER meter press its LCR Auto button until it will go to Rp mode. Go Rs on SER/PAL. Then press Freq until 100kHz. Now remeasure a capacitor. You are not in C mode so no more cap parameters to see but ESR is impedance and that's what you will see.