The ZMSM series from C&K is a mini size snap-acting switch, perfect for use in communication devices, testing equipment and security or alarm systems. Designers turn to the ZMSM series because of its reliable snap-acting mechanism, long electrical and mechanical life, various PCB terminals and actuators and its compliance with regulations such as RoHS and IP67 (IP67 for standalone switch except the metal terminal part; Full IP67 protection when potted with wire version).