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

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.

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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.