Core advantage Completely sealed, waterproof, dustproof and anticorrosive, suitable for outdoor and liquid equipment Passive operation, low power consumption, preferred for battery devices High and low voltage quarantine have excellent performance and are commonly used for high voltage test equipment and insulation monitoring Compact size, SMD, in-line multiple packages Short board The contact capacity is small, and the high-power load can not be directly switched on and off Strong vibration and alternating magnetic field are prone to misoperation. Can not bear large impact current, easy to contact adhesion