Room Thermostats
Thermostats for maximum comfort and energy efficiency
The Siemens line of room thermostats offer a range of products for simple to more complex buildings designed to optimize building efficiency and achieve more energy savings. Effortless building operations is made easy with basic climate control to advanced BACnet integration into building automation systems turning complete room control into a reality. Our thermostats are engineered for effortless installation, easy operation and reliability which leads to fewer call backs.
View this brochure for complete information on our thermostats. Download now
Powerful solutions for a broad range of thermostat applications

NEW: Siemens HVAC Interactive Digital Catalog 10.0
Find the right HVAC device to make your perfect place a reality. Discover the essential product details you need to make the right product selection by downloading the Siemens HVAC catalog today.
RDS120 Smart Thermostat Understands Your Needs
Siemens original Smart Thermostat was developed to provide professional control and operation of heating and cooling applications. Its clean design fits every interior. It is always in touch with its surroundings thanks to the six powerful and accurate sensors: temperature, humidity, light, proximity, presence and organic particle detection. Because all the sensors are integral to the Smart Thermostat, there is no additional wiring or programming. These sensors allow the Smart Thermostat to be fully autonomous.

NEW: Building Technologies Blog Center
Read forward thinking perspectives from subject-matter experts on HVAC related topics we know you care about. Articles ranging from HVAC products, to energy efficiency, indoor air quality and more.
Smart Thermostats Provide Elegant Room-Level Control
Operation Is Easy With or Without the Application
The Smart Thermostat can be operated either directly on the thermostat touchscreen or with the highly-intuitive Smart Thermostat app. The app enables full control and monitoring of your Smart Thermostat from anywhere, any time with a mobile device. Key functionalities of the app include scheduling, setting “home” and “away” modes, humidity control, indoor air quality monitoring, and the Green Leaf indicator for energy-efficient operation. This makes control of the Smart Thermostat fast and easy.
How-to Videos
We trust in the quality of our products.
Siemens offers a 5-year warranty on valves, actuators, damper actuators, sensors, thermostats and meters.

Easily select the right thermostat for your application using HIT
- Selection – Filters and calculators help you properly size and select the right products for your application
- Replacement – The replacement guide helps you quickly find current Siemens products for other brands and discontinued parts
- Projects – Quickly create project schedules and gather submittal documents for faster bidding to help you win more business
- Ordering – Built-in shopping cart connects to Siemens iMall for faster ordering