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824 : Sound Meter
Model : 828
Parameters : Sound
Range : 40 - 130 dB
Accuracy : 2 dB
Display : LCD
Power : 9V Battery

Description :

This Digital Sound Level Meter is an instrument to measure Sound Pressure Level in decibels (dB). This meter is featured with wide measuring range (40 ~ 130 dB), Bar-Graph Indication, A/C frequency weighting, Fast / Slow response and Maximum Hold function. The meter also provides a windscreen to filter-out unwanted signals. Moreover, the meter can connect to PC for Data Logging with optional USB cable. 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 :

100% BRAND NEW!
Weight 210g
Size (Approx) 23.5 x 7.0 x 3.0cm
Wide measuring range 40~130dB (decibels)
Two equivalent weighted sound pressure levels, A and C
Fast and Slow dynamic characteristics modes
Max locked function has the maximum value, after the stent-in-one unique, easy to use
AC Analog Signed Output for frequency analyzer level recorder or X-Y axis, FFT analyzer, graphic recorder, etc. to do statistical analysis of data logger
Auto power off function
Low battery indicator
Overload prompts
Portable, easy to use and handy
Instantaneous sound measure function
Tripod Mounting option
Passed the high standards of IEC651 TYPE 2 & ANSI S1.4 TYPE 2 for sound level meters

Specifications :

Sound Level : 40 ~ 130 dB With Level Selecting Button Switches
level 1 : 40 ~ 70dB
level 2 : 60 ~ 90dB
level 3 : 80 ~ 110dB
level 4 : 100 ~ 130dB
level 5 : 40 ~ 130dB
Accuracy : ±2dB (under reference condition)
Measuring Level : 40~130dBA, 40~130dBC
Frequency Range : 31.5 Hz ~ 8.5 kHz
Linearity/Dynamic Range : 30dB
Frequency weighting : A and C features
Digital LCD : 45 x 35mm with 4 digits, Resolution: 0.1dB, Display: 0.5   secretary
Sampling Rate : 2 times/second
Dynamic Characteristic (Time weighting) : FAST (high speed) / SLOW (low speed)
1 bar graph represents 1dB in the Analog Bar Graph
Bar Graph : 50dB scale at 1dB step for monitoring current sound
  pressure level display period of 50mS
Level Ranges : 40 ~ 70dB, 60 ~ 90dB, 80 ~ 110dB, 100 ~ 130dB, 40 ~ 130dB
Load indication : Use the symbol OVER (indicating over range) and UNDER   (indicating less than lower limit of the range)
AC output : 0.707 Vrms at FS output impendance aprrox. 600L
Microphone : 1/2 inch electret condenser microphone
Maximum Hold
Working Environment : Temperature: 0~40°C (32~104°F), Humidity: 10~70% RH
Storage Environment : Temperature: -10~50°C (14~122°F) , Humidity: 10~80% RH
Power Supply : 6F22 9V alkaline cells/battery or DC 9V 100mA (not included)
 
sound level meter,
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