A Company You Can Trust: Located in Kaohsiung City in Taiwan, OptiCon Tech (OCT) is arelated company of ATC, as a professional manufacturer of roomdigital thermostat. We have over 15 years of experience in HVACtemperature control and have a good reputation in this field. Ourproducts have won praise from customersworldwide. Quality and Safety: We have implemented a strict and complete quality control system,which ensures that each product can meet quality requirements ofcustomers. Besides, all of our products have been strictlyinspected before shipment. Your Success, Our Glory: Our aim is to help customers realize their goals. We are makinggreat efforts to achieve this win-win situation and sincerelywelcome you to join us.