TASI TA656A 30~130dB Sound Level Meter Decibel Meter Sound Level Sound Detector Noise Meter 0.1dB High Precision Noise Detector Specifications: Model: TA656A Material: ABS Measurement Range: 30.0~130dBA Resolution: 0.1dB Accuracy: ± 1.5dB (at the reference sound pressure level, 94dB@1kHz) Frequency Weighting: A weighting Noise Display: Four digit display, maximum 1999 Frequency Response: 31.5Hz~8KHz Time Weighting: FAST 0.125 seconds, SLOW 1 second Sampling Rate: 2 times/second Microphone: High sensitivity 1/2-inch capacitive microphone Automatic Shutdown: 15 minutes (can be manually turned off) Usage Environment: -10℃~50℃, maximum relative humidity of 80%, indoor altitude<2000m Storage Environment: -10℃~50℃, maximum relative humidity of 70% (battery removed) Power Supply: 2 * 1.5 AAA (Not included) Display Size: 30 * 30mm Item Size: 160 * 56 * 28mm / 6.3 * 2.2 * 1.1in Item Weight: 114g / 4.02oz Package Weight: 150g / 5.29oz Package Size: 20.5 * 8.5 * 4.5cm / 8.07 * 3.35 * 1.77in