PLC Keyboards-Keypads: Type - 4x4 Matrix Keypad; Number of Keys - 16; Key Travel - 0.38 mm (0.015 in); Dimensions - 3.000" L x 3.000" W x 0.350" H (76.20 x 76.20 x 8.89 mm); Mounting - Front Panel; Power Requirement - 24 VDC, 10 mA; Operating Temperature - -40 degC to 80 degC; Material - ABS Polycarbonate; Color - Black; Manufacturer Series - 84 Series