Storm Interface Vandal-proof keypad 4-element keyboard (F1-F4)

4-, 12- and 16- element keypad available in each series. Mounting on flat surface, can be mounted from above or from below. Smooth-functioning keys with pressure point. Interchangeable, unlettered key caps (except series 4000). High-grade, gold-plated switch contacts and plug. Each keyboard series is electrically as well as dimensions-wise compatible with the other series. Switching travel 1.4 mm (nominal). Actuation force 180 g (nominal). Plug type 2.54 mm grid, gold-plated pin block with interlocking.