SL – 4001
 
 Digital Sound Level Meter
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- Large LCD display, easy to read.
- Frequency weighting networks are designed to meet the IEC 61672 CLASS 2.
- A & C weighting networks are conformity to standards.
- Time weighting(FAST & SLOW) dynamic characteristic modes.
- AC/DC output for system expansion.
- Build in adj. VR is available for easy calibration.
- Condenser microphone for high accuracy & long-term stability.
- Max. Hold function for stored the maximum value on display.
- Warning indicator for over and under load.
 
 
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| General Characteristics | |
| Display | 18 mm LCD | 
| Measurement Range | 30 - 130 dB | 
| Resolution | 0.1 dB | 
| Frequency | 31.5 to 8,000 Hz | 
| Microphon Type | Electric condenser microphone | 
| Microphon Size | Standard size (0.5 inch) | 
| Calibrator | Multi-Function Acoustic Calibrator 4226 | 

