This application is directed to a surveillance camera system including a magnet mount for physically receiving a camera module. The camera module includes a housing having an exterior surface of a first shape. A surface of the magnet mount has a second shape that is substantially concave and complementary to the first shape, and is configured to engage the exterior surface of the housing of the camera module. A magnetic material is disposed inside the magnet mount and configured to magnetically couple to a magnetic material of the camera module. A friction pad is embedded on the surface of the magnet mount, has a substantially concave shape and protrudes beyond the second surface. The friction pad is configured to come into contact with the exterior surface of the housing of the camera module at least via a peripheral edge of the substantially concave friction pad.