The auto cursor function can measure 37 waveform parameters. Using this command, 
you can select the parameters to be measured by the auto cursor from the five 
parameters enabled last or query the parameters currently measured by the auto cursor.   
  This command is only valid when the auto cursor mode is selected. You can select 
the auto cursor measurement mode using the :CURSor:MODE command. 
  The 37 waveform parameters are listed below (see the detailed introduction 
in :MEASure Commands). The parameters can be enabled by the :MEASure:ITEM 
command. 
Period, Frequency, Rise Time, Fall Time, +Width, -Width, +Duty, -Duty, +Pulses, 
-Pulses, +Edges, -Edges, tVmax, tVmin, +Rate, +Rate, Delay  1→2, Delay 
1→2, Phase  1→2, Phase  1→2, Vmax, Vmin, Vpp, Vtop, Vbase, Vamp, 
Vupper, Vmid, Vlower, Vavg, Vrms, Overshoot, Preshoot, Area, Period Area, Period 
Vrms, Variance.   
The query returns OFF, ITEM1, ITEM2, ITEM3, ITEM4, or ITEM5.