A resistive strain gauge sensor with a 350 ohm nominal resistance which varies when a force is applied. By measuring the change in the sensors resistance a measurement of the force applied to it can be obtained. Note that strain gauges exhibit small changes in resistance and so this sensor should be used in a Wheatstone bridge...
A small illuminated capacitive toggle switch. This touch sensitive switch will toggle between its on and off state each time its front panel is touched (note that the switch can be modified to operate as a momentary switch - see note below). When in the on state the switch will illuminate via an LED backlight changing the switch from the opaque white to one of 4 colours (red, yellow, green or...