The RigRunner 4010S is the only power strip that has FET controlled automatic or manual on-off switching. It has one "always on" Master outlet and nine automatically or manually controlled switched outlets. Plug your main radio into the Master outlet, turn your radio ON or OFF to automatically control the other nine 40A (max) switched outlets. The switching is done with a 100A solid state automatic FET switch with temperature and over current protection. There are no switches to arc or burnout. The FET switch, in its ON condition, has less than .005 ohms resistance.
The 4010S has the unambiguous precision overvoltage and under voltage indicators. An audio alert is selectable for over and/or under voltage or it may be disabled.