.In fact, SASWELL is high-tech company located in Shenzhen P.R.China. We are the professional HVAC manufacturer of thermostat and valve in China Market. From the year of 2004, we start the export business. Till now we have exported thermostats and valve to UK, USA, UAE, South Asia, Brazil, Bulgaria, Germany, Spain, Iran York China and Thailand, Trane China and Europe. I believe you have bright selection for the supplier of thermostats! No mater you are a manufacturer, a distributor, or a contractor, we are ready to provide you with our good quality products and professional services. No mater what your need is digital programmable thermostats or non-programmable thermostats, electric zone valves or modulating valves, Saswell is a name trusted by contractors for our product quality and reliability. You can get more information about our company and our products from our website: xxxxx, or you can just contact me by email: xxxxx We are always willing to discuss with you about your need.