Have 2x Testec TT-HV 250 100:1
Attenuation Ratio: x100
Input Impedance: 100M?, 4 pF
Bandwidth: 300 MHz
Rise Time: 1,2 ns
Cable Length: 1,2 m
Compensation Range: 10..50 pF
Max. Input Voltage: 2500Vp CAT I, DC incl. Peak AC (derating
with frequency)
Scopes unburned so far.
Edit: Note, I used these only with low-energy HV as per CAT I spec!
"Measurement Category I:
This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment, circuits powered by regulated low-voltage sources, and electronics."