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Input signal: analog
Input signal: mixed-signal
Number of channels: multi-channel
Portability: bench-top
Input signal: optical
Number of channels: 2-channel
Number of channels: 4-channel
Number of channels: single-channel
Options and accessories: USB, for PC
Portability: pocket
Input signal: digital
Options and accessories: USB
Portability: portable
Options and accessories: compact
Options and accessories: multi-function
Options and accessories: computer-controlled, USB
Options and accessories: computer-controlled, USB, for PC