HVAC Monitors + Controls

HVAC monitors and controls from Tongdy provide the precision you need to maintain safe, comfortable and energy-efficient environments. Our instruments measure critical parameters like temperature, humidity, particulates, gases and air quality, while control solutions help regulate system performance for maximum efficiency. Built for reliability and ease of use, they are ideal for HVAC technicians, facility managers, and building engineers who need dependable data to optimize system performance and meet compliance standards.

Tongdy Sensing Technology
Tongdy is a leader in indoor air quality monitoring and control. Tongdy is based in Beijing, China and has over 16 years of experience, 25 product series, and global projects in 38+ countries. Tongdy delivers reliable, innovative solutions that help create healthier, more sustainable indoor environments.

Extensive Product Portfolio Over 25 product series and 300+ models designed for diverse applications.
Global Reach Deployed in 500+ projects across more than 38 countries.
Strong R&D Capabilities 3,500m² R&D headquarters with professional gas rooms and advanced testing facilities for product reliability and accuracy.
Commitment to Innovation Focused on obtaining accurate air quality data, enabling deeper understanding and effective improvement of indoor environments.