MRCOOL® MST07-S Remote Room Sensor for MST07 Smart Thermostat (Ducted Systems Only)｜ Other Products

Product Description 
Eliminate Hot & Cold Spots with Smarter Room Monitoring
The MRCOOL® MST07-S Remote Room Sensor is designed to improve comfort throughout your home by giving your HVAC system a better understanding of temperatures in the rooms you actually use.
Built specifically for the MRCOOL® MST07 Smart Thermostat, this optional accessory helps eliminate uneven temperatures by monitoring:

Occupancy
Temperature
Humidity

 
Smarter Comfort in the Rooms That Matter Most
Traditional thermostats only monitor one location, which can lead to uncomfortable hot and cold spots throughout the home.
By adding remote sensors, the MST07 thermostat can prioritize comfort in specific rooms for more balanced temperatures and improved efficiency.
 
Expandable Whole-Home Monitoring
You can connect up to 10 sensors to a single MST07 thermostat, creating a complete multi-room comfort system.
Perfect for:

Bedrooms
Living rooms
Bonus rooms
Offices
Sunrooms

 
Easy DIY Setup
Like the thermostat itself, setup is quick and simple through the MRCOOL® Connect App.
 
SENSOR FEATURES

Occupancy Detection
Temperature Monitoring
Humidity Monitoring
Supports Whole-Home Comfort Control
Works with MST07 Thermostat
DIY-Friendly Setup
Compact Wall-Mount Design

 
TECHNICAL SPECIFICATIONS
Model: MST07-S Series: MRCOOL Smart Thermostat Accessory Type: Remote Room Sensor Compatible With: MST07 Thermostat Mount Type: Wall Mount Color: White Battery Powered: Yes
Monitors

Occupancy
Temperature
Humidity

Warranty: 1 Year
 
Frequently Asked Questions On MST07-S
What does the MST07-S room sensor do?
The MST07-S remote room sensor monitors temperature, humidity, and occupancy in specific areas of your home to help improve overall comfort and reduce hot and cold spots.
 
What thermostat is this sensor compatible with?
The MST07-S is specifically designed to work with the MRCOOL® MST07 Smart Thermostat.
 
How many room sensors can be connected to one thermostat?
The MRCOOL® MST07 Smart Thermostat supports up to 10 remote room sensors for expanded whole-home monitoring and comfort control.
 
Does this sensor help save energy?
Yes. By giving your HVAC system more accurate room data, the sensor helps reduce unnecessary runtime and improves overall system efficiency.
 
Can I install the MST07-S myself?
Yes. The sensor is designed for quick DIY-friendly setup using the MRCOOL® Connect App.
 
What does the sensor monitor?
The MST07-S monitors:

Temperature
Humidity
Occupancy

This helps the thermostat make smarter comfort adjustments throughout the home.
 
Is the MST07-S battery powered?
Yes. The room sensor operates using batteries for flexible placement and easy installation.
 
Where should I place the room sensor?
For best performance, place the sensor in commonly used rooms such as bedrooms, living rooms, offices, or areas that experience uneven temperatures.
 
Can this help eliminate hot and cold spots?
Yes. The MST07-S helps the thermostat better balance temperatures across the home by monitoring conditions in multiple rooms.
 
Does the sensor connect to WiFi directly?
No. The MST07-S communicates through the MRCOOL® MST07 Smart Thermostat, which handles WiFi connectivity and app control.
 
Pair this sensor with the MRCOOL® MST07 Smart Thermostat for complete multi-room comfort control: Below  
https://mrcooldirect.com/products/mrcool-smart-thermostat-mst07?_pos=2&_psq=mst&_ss=e&_v=1.0
 
 
Why Buy From MRCOOL DIRECT?
When investing in a new HVAC system, where you buy matters just as much as what you buy. At  MRCOOL DIRECT, we focus on helping homeowners and contractors get the right system with real support before and after the sale.
Unlike many online sellers that simply list products, our team works directly with customers every day to help simplify system selection, installation questions, and product compatibility.
 
Authorized MRCOOL Dealer
MRCOOL DIRECT is an authorized MRCOOL dealer offering genuine MRCOOL products backed by manufacturer warranty support.
 
Fast Shipping on MRCOOL Systems & Accessories
We offer fast nationwide shipping on MRCOOL mini splits, heat pumps, ducted systems, thermostats, accessories, and refrigeration products.
 
Real Product Knowledge & Support
Whether you’re purchasing a DIY mini split, Universal system, ducted heat pump, or smart thermostat, we help customers understand:

System sizing
Compatibility
Installation options
Accessories & line sets
Smart thermostat integration

 
Built for DIY & Professional Installations
MRCOOL products are designed to simplify installation while still delivering professional-grade performance. Many systems support:

No-Vac® Quick Connect® line sets
DIY-friendly installation options
Smart controls & WiFi connectivity
High-efficiency inverter technology

MRCOOL has become one of the most recognized names in modern HVAC innovation.
 
Trusted by Homeowners Nationwide
Customers choose  MRCOOL DIRECT for:

Competitive pricing
Reliable shipping
Strong product availability
Responsive customer support
Access to the newest MRCOOL products

The company also maintains a BBB Accredited Business profile.
 
Shop Smarter with MRCOOL DIRECT
Whether you’re upgrading a single room or replacing an entire HVAC system,  MRCOOL DIRECT helps make the process easier with high-efficiency systems, knowledgeable support, and trusted MRCOOL products.
Brand:MRCOOL®Category:24 VOLT THERMOSTATSKU:MST07-STags:hvac room sensor, mrcool room sensor, mrcool thermostat sensor, mst07-s, remote room sensor, Smart sensor, smart thermostat accessory, thermostat sensor