Z1 STI Install Kit

This option designed for the Z1 HP full face helmet is a special fit for the Skytronic FX Audible Altimeter and Freefall Computer. The option allows skydivers to fully operate the Skytronic FX without removing it from the helmet. This gives easy access to all the functions of the instruments, like the extended jump information, programming, altitude check, and so on. The Skytronic FX is firmly held in place by the specially designed holder, and can be removed if necessary (to replace batteries, for example) without using any tool.