matrix keyboard 1 x 4, membrane 4switch

1 x 4 matrix keyboard, 4-button membrane compatible with Arduino 

Technical Details: 

Contact resistance: 500 Ω

Insulation Resistance: 100 MΩ

Operating Force: 150-200N 

Recovery time of the initial position of the push buttons: 1 (ms) 

Life Expectancy: 100 million pulses 

Switch travel: Touch type: 0.6 ~ 1.5 mm 

Operating temperature: -40 to +80 ° C 

Storage temperature: -40 to +80 ° C 

Includes adhesive backing 

No. of Pins: 5 free