KA0-5M (without bottom box) waterproof, no screws by default; KA0-5H (with bottom box) waterproof; KA0-5M(不带底盒)防水 铜件银点 默认不带螺丝; KA0-5H (with bottom box) waterproof copper parts silver dots; 1.5KWBS211 metal case is not waterproof silver point; 2.2KWBS216 metal case is not waterproof silver point; 3.7KWBS230 metal case is not waterproof silver point; 7.5KWBS230 metal case is not waterproof silver point; Separate bottom box