Extech 407736 Dual Range Type 2 Sound Lever Meter (Discontinued by the Manufacturer) Sound level meter with 1.5dB accuracy meets type 2 standards Provides 1.5dB accuracy Meets ANSI and IEC 651 Type 2 standards Two measuring ranges: 35 to 90dB (Low) and 75 to 130dB (High) Max hold with reset button