AS844+ Digital Sound Level Meter 30~130db Audio Noise Volume Measuring Instrument dB Decibel Monitoring Tester w/ Data Store 15000pcs

Brand name

Smart Sensor

Color

Yellow and black

Model number

AS844+

Calibration sound source

94dB@1KHz

Measurement range

30-130dBA/35-130dBC

Accuracy

+/-1.5dB

Resolution

0.1dB

Dynamic range

50dB/100dB

Overload indication

OVER/UNDER

Frequency weighting characteristic

A and C

Digital display

31/2 digits

Analogy bar graph

1dB/1 bar graph

Sampling rate

20times/second

AC signal out

1 Vrms/full bar grph

Dynamic characteristic

FAST/SLOW

Data storage quantity

15000

The maximum value holding

MAX

Auto power off

(after o operation for 10 minutes)

Microphone

1/2inch polarization capacitance

Operation volyage

3.7V Lithium battery/USDB 5V

Battery life

12hr(continue use)

Temperature measure range

0-45°C

Temperature accuracy

+/-2°C

Humidity measure range

10-99%RH

Humidity accuracy

+/-5%RH

Item size

225*66*31cm

Item weight

153g

Package size

260*215*60cm

Package weight

760g

LCD display

Color screen