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 Module, StarterHall-effect Magnetic Sensor Module RM1.80 This is a sensor you can use with Arduino to sense changing magnetic fields around magnetic objects, without contacting to the object itself.