iKey SL-86-911-FSR-USB Industrial Backlit Keyboard with Emergency Key
KEY SWITCH MATERIAL: Industrial silicone rubber LIFE: Greater Than 10 million Cycles TRAVEL: 0.055 in. VIBRATION POWER SPECTRAL DENSITY: 0.04g/Hz FREQUENCY RANGE: 20Hz - 2 kHz DURATION OF TEST PER AXIS: 3 hours.