| Standards | IEC 651.2, ANSI 1.4.2 |
| Paraments Measured | Lp-Sound Level, Leq-Equivalent Continuous A Sound Level, Lmax-Maximum Sound Level, LN-Percent of All Reading Over Alarm Value Set |
| Resolution | 0.1dB |
| Accuracy | 1dB |
| Frequency Weighting | ‘A’/’C’/’F’*(Flat) |
| Time Weighting | Fast (125ms)/Slow (1 Second) |
| Microphone | 1/2 Inch Electret Condenser Type |
| Memory | 30 Group with Measuring Conditions |
| Calibration Signal Built in | 94dB at 1k Hz(sinusoidal) |
| Frequency Range | 20Hz to 12Hz ,500 Hz |
| Alarm Value Set | 30dB to 130 dB |
| Alarm Output | LED Optional Relay Contact (NC) |
| Indicator | Low Battery Indicator |
| Power Supply | 4 x1.5V AAA Size (UM-4) Battery |
| External DC Power Supply | 6 V, DC,100mA |
| Dimensions | 9.29 in x 2.48 in x 1.02 in (236 mm x 63 mm x 26 mm) |
| Weight | 0.37 lbs. (170 g) |
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