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LUTRON SL 4022 Sound Level Meter
| Display | 1 8 mm (0.7") LCD (Liquid Crystal Display), 3 1/2 digits |
| Function | B (A & C frequency weighting), Time weighting (Fast, Slow), Max. hold, Max. hold reset, AC output |
| Measurement Range | 3 ranges ( 30 - 70 dB, 60 - 100 dB, 90 - 130 dB ), |
| Resolution | 0.1 dB |
| Operating Humidity | Less than 80% R.H. |
| Calibrator: | B & K (Bruel & kjaer), multi-fuction acoustic calibrator, model : 4226. |
| Power Supply | DC 9V battery x 2 PCs, 006P, MN1604 ( PP3 ) or equivalent, heavy duty or alkaline type. |
- Frequency weighting and time weighting are meet Max. Hold function for stored the maximum value on display.
- Warning indicator for over and under load.
- Large LCD display, easy to read. LCD display for low power consumption & clear read-out even
- A & C weighting networks are conformity to standards. in bright ambient light condition.
- FAST & SLOW dynamic characteristic modes. Used the durable, long-lasting components, including a strong, AC output for system expansion.
- light weight ABS-plastic housing case.
- Build in adj. VR, available for easy calibration. Compact and heavy duty housing case.
- Condenser microphone for high accuracy & long-term stability. Low battery indicator.
- Build max. hold reset switch.