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

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