The Sealey Autel Maxi Scope is a 4 channel automotive oscilloscope suitable for professional applications & allows for multiple components to be compared simultaneously. This unit can be powered directly from a USB (Universal Serial Bus) port, meaning no batteries or power leads & can work in conjuction with a Maxi Sys Model No's MS905 & MS908 Tablets to provide a powerful diagnostic tool. Accessories (supplied): 1.5mtr USB (Universal Serial Bus) Cable, 3mtr Screened Test Lead (x 4), Secondary Ignition Pickup, 2-Pin Breakout Lead, Attenuators 20:1 (x 2), Large Crocodile Clip Set (Pair), Small Crocodile Clip Set (Pair), Acupuncture Probe Set, Multimeter Probes (Pair).