- GENERAL TOOLSDIGITAL SOUND METER WITH 6 - MEASUREMENT LEVELS463DSM325Call for PriceAvailability: Special OrderGENERAL TOOLSDIGITAL SOUND METER WITH - BACKLIGHT, LO/HI RANGE-130DB463DSM8922Call for PriceAvailability: Special OrderGENERAL TOOLSANALOG SOUND METER, A/C - WEIGHTING SELECTABLE463ASM8926Call for PriceAvailability: Special Order