Yueqing relay Co., Ltd has decades of experience in the field of climatisation of enclosures, it is an comprehensive and specialized manufacturer who integrates with technology and research, development & sales together. Our main products are shown as follows: Thermostat regulator/panel thermostat, semiconductor heater//panel heater, room thermostat used in central air-conditioner and fan coil motorized valve, time switch/relay, temperature controller, switching power supply etc. Excellent production and quality-controlled equipment guarantee brilliant products, which have passed the CE and rosh certificate. Furthermore, they are all protected against any imitation by patents issued by national patent office as well.