Dongguan Kaien Electronic Science & Technology Co., Ltd. is affiliated to German Kaien Science & Technology/Hong Kong Hengxin (International) Industrial Co., Ltd. Since its foundation in 1988 in mainland China, it has engaged in production of thermo switch for 20 years. During the past 20 years, we have accumulated abundant experiences, kept innovating, and been highly appraised by domestic and foreign customers. Our company has now developed into a leading manufacture of temperature control protector.