Arduino 4x4 Matrix Keypad Membrane

This 16-button keypad provides a useful human interface component for microcontroller projects. The convenient adhesive backing provides a simple way to mount this keypad in a variety of applications. Maximum Rating: 24V DC, 30 mA Interface: 8-pin access to 4×4 matrix Operating temperature: 32 to 122 °F (0 to 50 °C) Dimensions (of keypad only): 2.7 × 3.0 inches (6.9 × 7.6 cm)