Sound Level Meter As-156a /B

We are engaged in manufacturing, exporting and supplying excellent quality Sound Level Meter AS-156A /B to our valuable clients.

Product Features:-
* DC output :1 0 m V / d B.
* Auto range selection and digital display with no guessing errors.
* Can memorize 30 groups of measurement results and measuring conditions.
* Permits choice a Aa , a Ca , a Fa weighting and a Fasta / a Slowa response times.
* Offers 4 measurement parameters: Lp (sound level); Leq (Equivalent Continuous A Sound Level ); Lmax ( Maximum Sound
Level) and LN (Percent of all readings over alarm value set ).
* Use USB data output with connection PC.
* Provide Bluetooth data outputchoice.

Product Parameters
Resolution0.1dB
AccuracyAS-156A: A 2dB
AS-156B: A 1dB
Measurable ParametersLp (sound level)
Leq (Equivalent Continuous A Sound Level)
Lmax (Maximum Sound Level)
LN (Percent of all readings over alarm value set)
Measuring RangeLp: 30~130dB
Leq: 35~130dB
LN: 0~100%
Frequency Weightinga Aa / a Ca / a Fa (Flat)
Time Weightinga Fasta ( 125ms ) / a Slowa ( 1 second )
Microphone1/2 inch electret condenser type
MemoryStore 30 group measurement conditions and data
Built In Calibration Signal94dB at 1kHz (sinusoidal)
Alarm Value Set30~130 dB
Frequency RangeAS-156A:: 20~8,000Hz
AS-156B: 20~12,500 Hz
Alarm OutputLED and optional relay contact (NC)
Size140x70x30 mm
Power Supply4x1.5vAAA Um-4 Battery
Weight130 g (Not including batteries)