50PCS 4 x 4 Matrix Array 16 Key Membrane Switch Keypad Keyboard Arduino/AVR/PI​C

Switch travel: touch-type: 0.6 ~ 1.5mm. electronic modules. PCB board etc . Dielectric Strength: 250VRms (50 ~ 60Hz 1min). However, it may delay due to industrial strike action, severe weather, custom reasons or peak seasons.

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