It's a relay capable of carrying 600 Amps controlled by 12V dc, can disconnect batterys from each other or whatever your purpose
New Link, retails for $178.50 now
http://www.tecknowledgey.com/catalog/product_info.php?cPath=57_64&products_id=541
Sorry for the late response. but yes they are both still for sale.
$620 each picked up / $680 each Shipped / $1300 Shipped for both
PayPal Payment, Shipped UPS Ground.
Shipping in original DD Boxes.
Will pack it with extra paper to fill in the empty spaces.
I havn't touched them since I...