Digital Commom Button Module -Arduino Compatible Product ID: 41838 RoHS: Our price: US$3.58

Magnetism Switch -Arduino Compatible Product ID: 41836 RoHS: Our price: US$3.58

Sealed Membrane 4*4 button pad with sticker Product ID: 41714 RoHS: Our price: US$3.00

Sealed Membrane 4*3 button pad with sticker Product ID: 41437 RoHS: Our price: US$3.00

5V Relay Omron G5LA -Arduino Compatible Product ID: 41391 RoHS: Our price: US$4.58