DT-85A Mini Sound Level Meter 40~130dB 31.5~8KHZ Environment Test Meter /Mini Environment Meter

Mini Sound Level Meter DT-85A
Introduction:
This sound level meter is designed to meet
safety engineering, health, industrial safety
measurement requirements, and can control
variety of environments the sound quality. Can be used for factories, schools, offices, home
and other noise measurement.
Features:
appearance design novel, compact.
high performance, Auto-sensing to light up the LCD backlight.
Max / Min hold.
Frequency Range: 31.5Hz and 8 kHz between. Scale range: 30dB to 130dB.
4 digits LCD display has a resolution of 0.1dB.
Only a frequency-weighted sound level that the frequency weighting "A" .
Specifications:
Frequency range: 31.5Hz~8KHz
Measuring level range: 40~130dB
Frequency weighting: A
Microphone: 1/2 inch electret condenser microphone
Display: LCD
Digital display: 4 digits
Resolution: 0.1dB
Display Up data: 0.5 sec.
Time weighting: FAST ( 125 mS )
Accuracy: + 3.5dB @1kHz, 94dB(under reference conditions)
Alarm function:
OVER is show when input is out of range(>130dB)
Auto power off:
Meter automatically shuts down after approx. 15 minutes of inactivity
Power supply:
One 9V battery, 006P / IEC 6F22 / NEDA 1604.
Operation temperature: 0 to 40ºC(32 to 104ºF)
Operation humidity: 10 to 90 % RH
Storage temperature: -10 to 60 ºC ( 14 to 140 ºF)
Storage humidity: 10 to 75 % RH
Dimensions ( H X W X D ): 210 X 55 X 32 mm
Weight: 135g (including battery