Tongdy Control Technology has designed and manufactured high quality IAQ products HVAC controllers for 15years. Our includes transmitters/ /controllers of carbon dioxide monoxide with temperature humidity detection; also other indicators Modbus interface such as Ozone VOC's well ...
Telephone:86-10-58731276,58731
Address:3-3-5F, IN-DO Mansion, No.Jia 48 ZhiChun Road Haidian District, Beijing. China