I already have a couple of the Fromeco Badger switches on hand...I just need one more to have a matched set for my jet...Besides, the failsafe switch that Smartly sells won't work outside of using Smartfly's Power Expanders or other similar units...Here's why:

The failsafe switch that Smartfly uses is wired so that is plugs directly into the power expander and uses the power expander's smart circuitry to turn on the Power Expander...To make a long story short, I believe that the Smartly failsafe pin and flag swich is designed so that when the pin is inserted into the swich the switch contact is made...When it is made it sends a signal (a short if you will) to the Power Expander to turn itself off...When the pin is removed, the contact is open, sending the signal for the unit to turn on...In other words, when the pin is installed you are shorting out the circuit..When the pin is removed the circuit is allowed to be completed and the unit turns itself on...It is my understanding that the current from the battery packs do not pass through the pin and flag switch and it cannot handle the current that you would need to the radio system...The pin and flag just enables the circuitry within the switch to either allow the current to pass or not to pass through the Power Expander's circuitry...The Fromeco Badger switch works the same way...The Fromeco switch just has all of the components within one switch package rather than Smartfly's way of having the circuity within the Power Expander and making you buy a separate pin/flag switch separately...

Kevin