Cal Test Electronics is offering the CT4200 series of passive voltage oscilloscope probes featuring compact 2.5 mm barrel size and bandwidths from 55MHz to 1.5GHz. 

The 8 model series includes 1x, 10x, 20x, and 100x attenuation ratios. 

Six models interface with oscilloscopes having 1 MΩ input impedances while two models require 50 Ω input impedances.