Decibel Meter Digital LCD 30-130dB Sound Pressure Level Audio Noise Measurement Detector Logger NO5274

Features:

Type:Decibel Meter

Sampling Rate: 2 times / second

Dimensions:256 x 70 x 35mm

Measuring Level: 30 ~ 130 dB(A)

Accuracy: ±1.5 dB

Frequency Response: 31.5 Hz ~ 8.5 kHz

Description:

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 (32 bit and 64 bits)/8/10

Specifications:

LCD display: 4 digits

Resolution: 0.1 dB

LCD size: 2.2 inch(55mm)

Display: 0.5 secretary

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

Frequency Weighting Characteristic: A / C

Analog Bar Graph: 1 dB / 1 bar graph

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.

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