Shanghai Qiaomai Electronic Technology Co., Ltd and Jiangshu Kemai Instrumentation Manufacture Co., Ltd are suppliers specializing in R&D and production of central air-conditioning thermostat, heating automatic controller, building automation system and smart home system. The company adheres to the operation principle "technological innovation and quality first; Integrity and occupy market by credit". The company now has a strong R&D team, excellent experimental conditions, domestic advanced production line with an annual output of 1 million sets, high-precision automatic chip mounter, reflow soldering and temperature controller research laboratories and 4 utility patents; The products passed inspection standard GB14536.1 and GB14536.10.

The initial dual-core temperature controller avoids difficulties in wiring and after-sales services arising from motor burnout and has the advantage of easy field installation (saving of labor, material and time). Self-developed wireless data transmission control system and centralized central air-conditioning system greatly facilitate user's control and application.