SMA2 is a touch metal piezo switch without a backlight. The product is developed by Barantech for use in any condition, including even the most demanding environments. This non-illuminated switch has no moving mechanical parts, increasing its working durability. The product is protected from moisture and is shock resistant. SMA2 can be fully customised in accordance with any requirements, making this piezo switch ideal for use in aviation, defence, marine & luxury yachts, and other spheres.