What is the lowest current setting this unit can output? Can the unit produce 10mA of current?

Yes, it seems to increase in volts and current in blocks of 10milliamls/10milivolts.

I am wondering about the input susyem while looking closely at the keys. There is some keys with 0.1A , 1A and positive negative signs. What are those

The keys increment/decrement output in steps of 0.1 or 1.

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Tekpower TP3005DC, DC Power Supply 30V 5A,Computer Controlled With Direct Input Set Up,Surge Protection,Higher Precision & Lower Ripple 110V or 220V Input, AC Power Cord Included, Like TP3005D,HY3005D

Product ID: 412629026

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Specifications

Item Weight	4 pounds
Product Dimensions	11.5 x 5.25 x 6.25 inches
Country of Origin	China
Item model number	TP3005DC
Is Discontinued By Manufacturer	No

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