Cheap Mastech MS6700 Digital Sound Level Meter Meters 30-130 dB

Specifications

Cheap Mastech MS6700 Digital Sound Level Meter Meters 30-130 dB 

Features:

The meter has been designed according to the IEC651 Type 2, ANSI S1.4 Type 2.
Measurement range is from 30dB to 130dB and automatic ranging.
With two equivalent weighted sound pressure levels, A and C.
Corresponsive rate select: FAST/SLOW
Maximum value locked.
Clock and calendar function.
AC and DC analog signals output, which can be linked to frequency analyzer or X-Y axis recorder.
Background light for working in the night.

Specifications:

Accuracy: ±1.5dB
Response frequency: 31.5Hz—8kHz
Dynamic range: 50dB
Frequency weighting: A/C
Time weighting: FAST 125ms, SLOW 1sec
Microphone: Electret Condenser microphone
Digital display: 4 digitals
Resolution: 0.1dB
Sampling rate: 2 times/s
Analog bar display: Each analog bar is as 1dB, sampling rate 20 times/s
Measurement ranges: six ranges: 30-80dB/40-90dB/50-100dB/60-110dB/70-120dB/80-130dB
Auto-range: Micro-computer can choose the best measurement  ranges
AC signal output: 0.707 Vrms at FS (Auto-range mode isn't included), Output impedance: approx.600ohm
DC signal output: 10mV/dB, Output impedance approx.100ohm
Power supply: 4*LR03 AM4 1.5V AAA alkaline cells (not included)
AC adapter: Voltage 9V DC
Voltage ripple: <100mVpp
Supply Current: >100mADC
Socket pin: Ground
Casing: positive
External Diameter: 3.5mm
Operating temperature: 0 to +40 Centigrade
Operating humidity: 10 to 80%RH
Storage temperature: -10 to +60 Centigrade
Storage humidtiy: 10 to 70%RH
Dimension: 245*80*35mm (L*W*H)
SKU: X1IN10301

1 * MS6700 Sound Level Meter
1 * Earphone plug
1 * Operation manual
1 * Windscreen