Triplett SoniChek TSC-MC1 Sound Level Meter Handheld measures sound from 40-130dB from 31.5Hz-8Khz. The Triplett SonicChek TSC-MSC1 features an illuminated display, MIN/MAX hold features, shock resistant casing, a 3 year limited warranty, and more. The Triplett SoniChek TSC-MC1 Sound Level Meter Handheld is fantastic for measuring sound levels in industrial and environmental industries.