WS1361 Digital Sound Pressure Tester Noise Level Decibel Meter

Notice :
below 2000 meter in height
operating condition : 0℃~40℃, 10~80%rh
use dry cloth to clean the unit, but never with any solvent.

Specification:
frequency range : 3.5hz~8.5khz
level range : 30~80db, 40~90db, 50~100db, 60~110db, 70~120db, 80~130db, 30~130db
linearity weighting : 50db
frequency weighting : a/c
digital display : 4 digits
resolution : 0.1db
sample rate : 2times/second
bar graph : 50db scale 1db step for monitoring current sound pressure level display sample rate : 20 times/second
over indication : over/under
ac output : 0.707vrms at fs output impedance approx 600ohm
dc output : 10mv/db, output impedance approx 100ohm
time weight : fast/slow
microphone : ½ inch eletret condenser microphone
max : max
power life : about 30 hours(alkaline battery)
self calibration : 4s
operating condition : 0℃~40℃, 10~80%rh
storage condition : -10~50℃, 10~80%rh

Package Contents:
1 x Professional sound level meter
1 x Sponge ball
1 x Usb cable
1 x Software cd
1 x English user manual