Brief introduction:
This Digital Sound Level Meter is an instrument to measure Sound Pressure Level in decibels (dB). This meter is featured with wide measuring range (30 ~ 130 dB), A frequency weighting, Maximum function and low battery indication. The meter also provides a windscreen to filter-out unwanted signals.
This is a portable, easy to use and handy instrument for sound quality control in office, home, school and construction site. The meter has wide range of applications such as noise pollution studies, research and other industrial use.
Features:
Instantaneous Sound Measure Function
Wide Measuring Range: 30 ~ 130 dB
With weighted sound pressure levels A
With windscreen to filter noise or unwanted signal
Maximum function
Low Battery Indication
Large and clear LCD screen
With Tripod mounting on the back of the unit for field use

Specification:
Measuring Level: 30 ~ 130 dBA
Accuracy: ±1.5 dB (94 db@1kHz)
Frequency response: 31.5Hz ~8.5KHz
Frequency Weighting: A
Digit Display: 4 digits
Resolution: 0.1 dB
Sampling rate: 2 times/second
Microphone: 1/2 inch electrets condenser microphone
Max Hold: MAX
Low battery indication
Power: 1 x 9V battery (NOT included)
Operating Temperature: 0 ~ 40 °C (32 ~ 104 °F)
Operating Humidity: 10 ~ 80 % R.H.
Storage Temperature: -10 ~ 60 °C (14 ~ 140 °F)
Storage Humidity: 10 ~ 70 % R.H.
Dimension: approx. 57 x 26 x 149 mm

Package included:
1 x Sound Level Meter
1 x Sponge Ball or Windscreen
1 x Instruction Manual