1/2/5/10PCS 16 Key Membrane Switch Keypad Keyboard 4×4 Matrix Array For Arduino Switch travel: touch-type: 0.6 ~ 1.5mm. Dielectric Strength: 250VRms (50 ~ 60Hz 1min). hope you could understand. Vibration: 20G, max. Temperature: from 40,90% to 95%, 240 hours. byJuly 3, 2026