The Power Analyzer is an essential accessory for your Nomad PDU set up, as it allows you to analyze any and all current, watt and amp from a source such as a solar panel to Nomad which tells you the actual charge rate occurring, gives you a better understanding or your entire set up. It also allows you to test the voltage on the Nomad at any time by plugging into the anderson output, this will tell you the actual voltage at the source. The Power analyzer allows you to conduct diagnosis easier than using a multi meter is you are not electrically inclined. RRP $45.95 Get more from your nomad today.