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Arming Switch Plug for ArmSafe. Will also fit Radical RC flush mount for Deans Ultra. Spare ArmSafe® Arming Plugs. Always make sure that ALL is safe before plugging in the Arming Plug. An Arming Plug is required to energize a RC Model by plugging it into the ArmSafe® Base. The Arming Plugs are very compact and aerodynamic, when plugged in they only measure about 0.28" x 0.5" x 0.5". Weight is only 3.7 grams.
The ArmSafe® System was created to improve the safety of electric RC models by giving the user better control of WHEN they energize and de-energize their models. This control can help reduce the risk of propeller strikes due to inadvertent motor starts. ArmSafe® is an effective solution for reducing, not eliminating, the risk of injury around high powered electric models. When ArmSafe® is CORRECTLY USED, the user has better control of WHEN they energize and de-energize their RC model. Uses Deans® Ultra Plug® Pat# 5,533,915. It was developed to have all the features RC modelers want:
 "ArmSafe Arming Plug")