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sealed rechargable batteries
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built in battery charger |
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audio amplifier w/ weatherproof speaker
& headphone output |
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battery voltage/current meters
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adjustable hydrophone voltage
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-
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adjustable hydrophone amplifier gain
(6dB steps from -12dB to 30dB)
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sealed operating panel |
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heavy duty watertight enclosure
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power and signal outputs for digital
audio tape (DAT) recorder or portable
data acquisition (DAQ) system
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