321 Sound Level Meter

CENTER 321 is our newly designed sound level meter. With all the functions 320 can provide, we had changed something in new designed back light LCD. We had added fast analog bar with peak hold two second in this tester. An auto range function is added for the tester to choose one proper range for measuring by the tester itself. RS232 interface is also added to provide real time data to the computer.

Features :

1. PC Interface
2. Bargraph Indication
3. Max/Min Function
4. Auto Ranging (30~130dB)
5. Resolution 0.1dB
6. Level Range Display
7. AC/DC Signal Output
8. Auto Power Off
9. IEC 651 TYPE II

Standard Accessories :

1. Battery
2. operation manual
3. carrying case
4. Calibrator (optional)

1. Measurement Range: 30~130dB
2. Level Range: Level Range: Lo=30~80dB ; Med=50~100dB ; Hi=80~130dB
3. Accuracy: ±1.5dB (ref. 94dB@1KHz)
4. Frequency Weighting: A / C
5. Time Weighting: Fast, Slow
6. Dynamic Range: 50dB
7. Frequency Range: 31.5Hz to 8KHz
8. Microphone: Electret condenser microphone
9. Auxiliary Outputs: AC/DC Output
10. Battery: 9V battery
11. Dimensions: 275 x 64 x 30 mm
12. Weight: Approx.280g