Your Trusted OEM Thermostat Manufacturer | CE/UL-Certified HVAC Controls

4-Inch Touchscreen Thermostat OEM Service | 7-Day Fast Delivery | HVAC Manufacturer

 SASWELL specializes in customizable HVAC controls with CE/UL/RoHS certifications, offering 7-day OEM prototyping for global brands. Our Color Screen Thermostat integrates 485 protocol for seamless BMiS connectivity, enabling real-time building management system integration across residential, commercial, and industrial applications. With 200+ patented technologies and ISO 9001-certified production, we deliver energy-efficient thermostats supporting multi-zone temperature control, modular firmware upgrades, and IP55-rated durability. Optimize HVAC projects with 24/7 engineering support and 3-year warranty coverage.