Sound Level Meter

• Trademark: ShowRange
• Origin: Shanghai
• Model NO.: CENTER 320, 321, 322, 329, 326

Product Description

CENTER 320 Sound Level Meter
Specifications:
Level Range: Lo=30~80dB; Med=50~100dB; Hi=80~130dB
Accuracy: ± 1.5dB (ref 94dB@1kHz)
Frequency Weighting: A / C
Time Weighting: Fast, Slow
Dynamic Range: 50dB
Frequency Range: 31.5Hz to 8kHz
Microphone: Electret condenser microphone
Auxiliary Outputs: AC/DC Output
Battery: 9V battery
Dimensions: 275x64x30 mm
Weight: Approx. 280g

CENTER 321 Sound Level Meter (PC Interface)
Specifications:
Level Range: Lo=30~80dB; Med=50~100dB; Hi=80~130dB
Accuracy: ± 1.5dB (ref 94dB@1kHz)
Frequency Weighting: A / C
Time Weighting: Fast, Slow
Dynamic Range: 50dB
Frequency Range: 31.5Hz to 8kHz
Microphone: Electret condenser microphone
Auxiliary Outputs: AC/DC Output
Battery: 9V battery
Dimensions: 275x64x30 mm
Weight: Approx. 280g

CENTER 322 Sound Level Meter (Datalogger/PC Interface)
Specifications:
Level Range: Lo=30~80dB; Med=50~100dB; Hi=80~130dB
Accuracy: ± 1.5dB (ref 94dB@1kHz)
Frequency Weighting: A / C
Time Weighting: Fast, Slow
Dynamic Range: 50dB
Frequency Range: 31.5Hz to 8kHz
Microphone: Electret condenser microphone
Auxiliary Outputs: AC/DC Output
Battery: 9V battery
Dimensions: 275x64x30 mm
Weight: Approx. 280g

CENTER 329 Compact Size Sound Level Meter (Low Cost)
Specifications:
Level Range: 40dB~130dB
Accuracy: ± 2dB(ref 94dB@1kHz)
Resolution: 0.5dB
Frequency Weighting: A, C
Time Weighting: Fast, Slow
Dynamic Range: 30dB
Frequency Range: 125Hz to 8kHz
Microphone: Electret condenser microphone
Power Supply: 9V Battery
Dimension: 232× 54× 34 mm
Weight: Approx. 200g

CENTER 326 Sound Level Calibrator (1kHz)
Specifications:
Output Sound Pressure Levels:
114dB and 94dB re 20uPa under reference Conditions
Output Frequency: 1000Hz± 2%
Total Harmonic Distortion: <4%
Reference Condition:
Temperature 23° C(73° F)
Static press 103hpa
Relative humidity 50%
Accuracy of sound pressure level:
Understated reference environment conditions ± 0.5dB
Battery test:
Operate: Green LED indicator
Low battery: Red LED indicator
Battery: 9V battery
Dimensions: 113x63x44 mm
Weight: Approx. 170g