RIGOL DS6000 Series - Manual (Page 29)

RIGOL
RP1000D User’s Guide 1
RP1000D Overview
RP1000D series high voltage differential probe can convert high
differential input voltage to low voltage and display the waveform
on oscilloscope. Its working frequency is up to 25MHz (RP1025D),
50MHz (RP1050D) and 100MHz (RP1100D) and it is rather suitable
for large electricity test and R&D.
RP1000D series high voltage differential probe is applicable to
general purpose oscilloscope and the labeled attenuation ratios are
those when the input impedance of the oscilloscope is 1MΩ. The
attenuation ratios will double when the input impedance of the
oscilloscope is 50Ω.