A great solar regulator/battery monitor kit for a small 12Vdc power system. Perfect for small cabin, RV, marine, or home hobby use. The SB2512 can be paired with a maximum of 400W of 12V nominal solar modules. Programming and battery monitoring is done through the included IPN-Pro monitor and shunt. The SB2512iX-HV has never been used. The IPN-Pro has been lightly used and is in "like new" condition. The new cost of this equipment is $370. I'm asking $150.