VISHAY TCMD4000 OPTOCOUPLER, TRANSISTOR O/P, 3.75KV Countryman EMW no exposure compensation will be

VISHAY TCMD4000 OPTOCOUPLER, TRANSISTOR O P, 3.75KV Countryman EMW no exposure compensation will be no exposure compensation will be required ( exposure compensation is required for handheld meters ) Compact adapter for converting a computer's speaker headphone output to balanced microphone levels for connecting to a house PA Balanced XLR outputs Volume control per channel Ground lift switch for hum free operation Mono switch for combining both sides of the stereo output to a mono signal Headphone loop through and main output mute switch Alternative USB sound capture from the computer for a clearer signal No drivers required for use with Windows XP or Windows 7 Includes a USB cable and carry pouch