Description: The membrane keypad has keys 0-9, which play notes C4, D4, E4, F4, G4, A4, B4, C5, E5, and D5. The * and # keys are used to change the duration from 2/10 of a second and 8/10 of a second.

Membrane Switch Module - Digital Out: Membrane Switch Module is used for user input into the system. The user can enter their security code and use the A, C, and D to arm, change the password or ...