Renogy 100w 12v panel and controller

Renogy 100w 12v panel and controller

I use a Renogy 100w 12v panel and controller to charge a battery that charges most of my small electronic devices. The system's controller doesn't have any sort of display, does anyone have a good recommendation for a meter that I can hook to my batteries to give me more stats and data?

submitted by /u/unl1988
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