1 2 3 4 Key Button Membrane Switch for Arduino

1 2 3 4 Key Button Membrane Switch Matrix Array Keyboard Keypad Control Panel Pad DIY Kit For Arduino

1 key button switch $10

2 key button switch $13

3 key button switch $15

4 key button switch $18

Specification:

Button key Life: >50,000 orders

Electric circuit material: 0.125mm fully transparent

Connector: 2.54mm Adapter

Circuit resistance: <50Ω