Teledyne Lecroy CP030 30A, 50 MHz Current Probe - AC/DC, 30 A rms, 1.5m cable
You will struggle to find a better one of these for sale currently especially in the UK. New price is £5430. Bandwidth (Probe Only) 50 MHz. Coupling AC 1 MΩ, DC 1MΩ, GND. Max Continuous Input Current 30 A.