Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low View: 32 64 All Add to cart Add to Wishlist Add to Wishlist SensorsMH Hall-effect Magnetic Sensor Module RM2.20 This is a sensor you can use with Arduino to sense changing magnetic fields around magnetic objects, without contacting to the object itself. Add to Wishlist Add to Wishlist