3*4 4*4 Matrix Switch Keyboard Keypad Array Module ABS Plastic Keys 4x4 3x4 12 16 Key Button Membrane Switch DIY Kit for

High-concerned chemical：None isCustomized：Yes Dissipation Power：n/a Supply Voltage：. Type：Module Brand Name：SZFYDOSH Origin：Mainland China Condition：New Operating Temperature：.

High-concerned chemical: None isCustomized: Yes Dissipation Power: n/a Supply Voltage: . Type: Module Brand Name: SZFYDOSH Origin: Mainland China Condition: New Operating Temperature: .