Founded in 1999, Tongdy Control Technology Co., Ltd. is a manufacturer of digital thermostats and hygrostat of HVAC and indoor air quality monitors & controllers. The products we can supply includes programmable and non-programmable digital thermostats for HVAC systems; digital humidity controllers with temperature option; Modbus and Bacnet commercial thermostats; CO2 transmitter/monitor/ controller; CO transmitter/monitor/alarm; Ozone detector/controller; other IAQ monitors and controllers. Especially we can supply customized products to meet specific requirements from clients with our professional and rich design experience in a short time.

As a high level control technology company, we are committed to R&D and have developed high level and high quality control products. All products have perfect performance and good stability, reliability with lower prices, as well as our all products have been resold in worldwide.