240v Thermostat Wifi suppliers Our History In 2009 We established the first our own production line. In 2011, Hysen opened an online website to promote our products and let more customers know us. In 2012, Our products passed CE certification, and we registered the first China brand CN-HYSEN. In 2013 Our products are trusted by more customers in overseas markets such as Asia and South Africa. In 2014, We became to the thermostat industry top 10. In 2015, Another brand Hysen was registered. From 2016 to now, We are becoming a better smart home manufacturer. Our Factory Xiamen Hysen Control Technology Co., Ltd. is a well established m