RJ12 UTP Cable - 10MA cable to connect the BMV shunt to the BMV head unit. An RJ12 cable ships standard with a BMV battery monitor, but if this cable is too long or too short it can be replaced by one of these cables, lengths available from 0.3 up to 30 meters.Please contact your dealer for any returns, repairs or support issues related to this product. - cis2:mm5mnJlm -Quick Guide (pdf)