Check the listing for details. Tenma Sound Level Meter: Model 72-935. Condition: New. Listed at 30.00 USD. Tenma Sound Level Meter: Model 72-935. Condition is "New". Compact Digital Sound Level Meter Ultra compact sound level meter is perfect for numerous types of measurement including sound system testing and noise level monitoring. Measures less than 6" in length, including the windscreen Provides full 40 ~ 130dB measuring range Simple one–button operation Selectable MIN/MAX hold Large ¾" digit LCD backlit display Threaded insert which accepts standard tripod mount Auto power off 1999 count display with 0.1dB resolution Removable windscreen Includes manual and 9V battery Specifications: Frequency range: 31.5Hz~8KHz Frequency weighting: A Microphone element: ½" electret condenser Sample rate: 0.5 seconds Time weighting: 125mS Accuracy: ±3.5dB @ 1KHz, 94dB Dimensions: 5¼" (L) x 2" (W) x 1¼" (D)