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Frequency Selection: 20 Hz to 1500 Hz in 1 Hz step.
Frequency Accuracy: ±0.5% of setting.
Level Selector: 0.1 to 1.0 PSI in 0.1 PSI increments.
Level Accuracy: ±5% of setting.
Oscillator Int/Ext: “Ext” position allows an external source to be used as the oscillator instead of the internal one.
Oscillator On/Off Switch: It shuts off the oscillator drive to the transducer.
Sensitivity Selector Switch: Allows accommodating “Unknown” microphones with sensitivities from 100 to 1100 mV-pC/PSI.
X1–X10 Switch: Works with “Sensitivity” switch to extend sensitivity from 1000 to 11000 mV-pC/PSI.
pC–mV–mV Curr Switch: Allows selection of three different microphone types.
Unknown–Known Switch: Selects which input microphone is being monitored.
Percent–PSI Switch: Selects the units for the meter.
Power: 115 to 230 VAC.
Mechanical Dimensions: 12" D × 12" W × 7.5" H (30.5 cm × 30.5 cm × 19.0 cm).
Sound Transducer Dimensions: 4.5" D × 5.5" H.
Weight: 40 lbs.
