Xpert RC electric on/off switch
XpertRC now have this electric on/off switch available. Working with 6V and 7.4V input the device eliminates the need to use an unreliable mechanical switch as it offers simple 1-button operation, plus it incorporates an adjustable low-battery warning for LiPo and NiMH receiver battery packs. The case features three mounting lugs that match with the personal transponder mount many radio trays offer and it can additionally mounted using a 2-hole mounting pattern in the case itself.
Source: Xpert RC [xpert-rc.com]