ASHA PMB-101, Manual, Page: 16 / 20

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Requirements
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High precision analog or digital voltmeter (5.5Digits)
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Appropriate Power Supply (Available in Package)
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Standard ground connection (Due to the high sensitivity of
the sensor, if there is no proper ground connection, the envi -
ronmental noise will greatly affect the sensor performance.)
It is necessary to mention that this power meter is very precise and sen -
sitive and due to the precision the device output (listed in the table),
in order to use full capabilities of the device, it is recommended to use
voltmeters with the accuracy better than 100μV.