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This calibrator features an operational readiness, which is indicated by the low-battery red LED.
This calibrator features an operational readiness, which is indicated by the low-battery red LED.
| Acoustic Output | |
| Microphone | 0.5" (12.7 mm) |
| Frequency | 1000 Hz ±1% |
| Sound Pressure | Selectable at 94 or 114 dB |
| Reference Level | 0 dB = 20µ Pascals |
| Accuracy | ±0.5 dB at reference conditions |
| Distortion | Less than 2% |
| Environmental | |
| Operating Temperature | 32 to 122°F (0 to 50°) |
| Storage Temperature | -40 to 140°F (-40 to 60°C) with the battery removed |
| Temperature Coefficient | Less than ±0.05 dB/°C |
| Operating Relative Humidity | 0 to 90%, non-condensing |
| Reference Conditions | 73.4°F (23°C), 760 mm Hg |
| Relative Humidity | 30 to 60% |
