Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low View: 12 24 All Add to Wishlist Add to Wishlist Add to cart Add to Wishlist Add to Wishlist Sensor Component, Sensor Module, Starter, SwitchMC-38 Door Magnetic Sensor Switch RM3.00 This is a magnetic switch sensor you can use with Arduino to sense proximity of door.