Type 9123-1N Current Probe Specs Figures SPECIFICATIONS A: 4.5" (11.43 cm) D: 0.75" (1.90 cm) B: 3.0" (7.60 cm) W: 1.25" (3.17 cm) C: 1.375" (3.49 cm) Frequency range: 10 kHz to 500 MHz Transfer impedance (ZT): 1.0 to 5.0 Ω above 300 kHz Output load impedance: 50 ...