T Tocas Digital Sound Level Meter, Noise Measurement 30-130 dB, Don't Support SD/TF Card -Support Windows 7 8 10

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About T Tocas Digital Sound Level Meter, Noise

Digital sound level meter has been designed to meet the requirement of Safety Engineers, Health, Industrial Safety, Office and Sound Quality control in various environment, it’s perfect for measuring noise levels in factories, offices, theaters and audio systems to give you accurate readings in a greater range Notice: 1: If your have any question contect the product to computer ,please mail us 2:Don't Support TF card Operation Features: Plotted graph and recorded data are printable High accuracy up to ±1.5 dB With 2 equivalent weighted sound pressure levels A and C FAST / SLOW time weighting selection Automatic power off when idle for 10 minutes Tested compatible with Microsoft Windows XP / Vista / 7 / 8/ 10(32 bit and 64 bits) Spec : LCD display: 4 digits Measuring Level: 30 ~ 130 dB(A) Accuracy: ±1.5 dB Frequency Response: 31.5 Hz ~ 8.5 kHz Resolution: 0.1 dB Sound Level: Level 1: 30 ~ 80 dB Level 2: 50 ~ 100 dB Level 3: 60 ~ 110 dB Level 4: 80 ~ 130 dB Level 5: 30 ~ 130 dB Dynamic Range: 50 dB / 100 dB Analog Bar Graph: 1 dB / 1 bar graph Sampling Rate: 2 times / second PWM Signal Output: duty cycle = 0.01 x dB value x 100% / 3.3 Dynamic Characteristic (Time weighting): FAST(high speed) / SLOW(low speed) Calendar Accuracy: ±30 seconds / day Microphone: 0.5 inch polarization capacitance microphone Power Supply: 4 x 1.5V AA battery (not include)or USB Cable Power Life: about 20 hours continuous use (alkaline battery) Operating Temperature: 0 ~ 40 °C (32 ~ 104 °F) Operating Humidity: ≤80 % R.H. Note: The Package NOT include SD or TF Card