This was to be used in my Lectric Leopard. Planned on installing it, other things got in the way. No longer made. Includes serial port (apparently some didn't).
For noobs, the E-meter was the go-to EV battery monitor for decades, and likely would still be if it was still made. The company changed hands a few times and it eventually became the Xantrex Link 10, but it's the same unit. It was adapted from alternative-energy use and the conversion and installation was a bit delicate - many E-meters died in the process. Lee Hart makes a fully-assembled companion board for $80 shipped that makes it painless. Also available as a bare board for $10 or a DIY kit for $50. See: Lee's E-meter / Link 10 companion board
Price: $200 Shipping weight: 1 lb.
Payment by Paypal or cash in person. I'm in the Philly Metro area. Shipping is extra.