The Extech 407732-KIT is a Type 2 sound level meter that meets ANSI and IEC 651 Type 2 standards and is ideal for workplace noise measurement, fire alarm and loudspeaker system installation and noise ordinance enforcement. The meter measures from 35 to 130 dB in 2 measuring ranges with an accuracy of ±1.5 dB. Measured value and maximum value memory functions. Easy-to-read display with backlighting, even in dimly lit areas. The device is supplied including 407722 sound calibrator and plastic carrying case.