Choosing the right wired thermostat for your mini split system can significantly improve your home’s comfort and energy efficiency. This guide reviews top Amazon picks for wired thermostats compatible with mini split, ductless, and other HVAC systems, helping you control temperature precisely.
Below is a summary table of the best thermostats and related wiring products to consider:
| Product | Brand | Compatibility | Key Feature | Amazon Link |
|---|---|---|---|---|
| Breez Max Smart AC Controller | Cielo Breez | Mini-split, Window, Portable ACs | AI-based Universal Compatibility & WiFi Control | View on Amazon |
| MrCool Smart Programmable WiFi Thermostat MST05 | MRCOOL | Ductless Mini Split | Alexa & Google Assistant Integration | View on Amazon |
| Kumo Touch MHK2 RedLINK Wireless Thermostat & Receiver | Mitsubishi Electric | Mini Split Systems | Wireless Remote Controller Kit | View on Amazon |
| Sensibo Air PRO Smart Thermostat | Sensibo | Mini Split, Window, Portable ACs | Air Quality Sensor & Smart Climate Control | View on Amazon |
| Firmerst 14/4 Outdoor-Rated Mini-Split Cable | FIRMERST | Wiring for Mini Split & HVAC Systems | Weatherproof Cable for Outdoor Use | View on Amazon |
Content Navigation
- Breez Max ENERGY STAR Certified Smart AC Controller
- MrCool Smart Programmable WiFi Thermostat MST05 for Mini Split
- Kumo Touch MHK2 RedLINK Wireless Thermostat & Receiver Kit
- Sensibo Air PRO Smart AC Controller and Air Quality Sensor
- Firmerst 14/4 Outdoor-Rated Cable for Mini Split and HVAC
- Buying Guide for Mini Split Wired Thermostats
Breez Max ENERGY STAR Certified Smart AC Controller

The Breez Max by Cielo Breez is an ENERGY STAR certified smart thermostat designed for mini-split, window, and portable AC units that use IR remote controls. It features AI-based technology to auto-detect compatible units, boasting compatibility with over 20,000 models.
- WiFi thermostat with support for Alexa, Google Assistant, and IFTTT integration
- Built-in temperature and humidity sensors, calibratable via app
- Easy DIY setup with universal auto-detection of air conditioner brands
- On-device touch buttons and remote smartphone control
This thermostat bridges traditional IR-controlled air conditioners with modern smart-home convenience, allowing temperature control from anywhere. Users should note it requires a 2.4 GHz WiFi network.
MrCool Smart Programmable WiFi Thermostat MST05 for Mini Split

The MrCool MST05 thermostat is tailored for ductless mini split systems offering smart technology with WiFi connectivity and voice control compatibility.
- Supports Alexa and Google Assistant for hands-free temperature adjustment
- Sleek rectangular design with a touchscreen display plus a programmable remote
- Flexible mounting options: wall mount like a traditional thermostat or docked with a 5V table stand
- Offers 1 heat / 1 cool stage control ideal for typical mini split setups
This thermostat emphasizes modern aesthetics and convenience in control while maintaining precise temperature programming.
Kumo Touch MHK2 RedLINK Wireless Thermostat & Receiver Kit

The Kumo Touch MHK2 from Mitsubishi Electric offers a wireless thermostat and receiver pair designed for mini split systems.
- Enables remote wireless control of compatible Mitsubishi mini split units
- RedLINK technology facilitates consistent and reliable communication between thermostat and HVAC unit
- Compact and easy to install without extensive wiring demands
This kit is ideal for Mitsubishi system owners looking for a streamlined remote control solution that integrates cleanly with their mini split without a complex wired setup.
Sensibo Air PRO Smart AC Controller and Air Quality Sensor

The Sensibo Air PRO is a smart thermostat controller compatible with mini split, window, and portable AC units that use IR remotes. It also features an integrated air quality sensor to monitor indoor air conditions continuously.
- Maintains ideal temperature with smart climate adjustments minimizing hot and cold fluctuations
- Reduces cooling costs by up to 40% by optimizing AC usage
- Works with Google Assistant, Alexa, Siri, and Apple HomeKit for broad smart home compatibility
- Monitors humidity, CO2, and other air quality factors for healthier indoor environments
This thermostat stands out by incorporating air quality monitoring with energy-saving climate control.
Firmerst 14/4 Outdoor-Rated Cable for Mini Split and HVAC

The Firmerst 14/4 cable is a high-quality, outdoor-rated wire designed for reliable wiring of mini split and other HVAC systems, especially for outdoor connections.
- ETL certified for safety and reliability in outdoor environments
- Constructed with 100% pure copper conductors for excellent conductivity and durability
- Weatherproof and UV resistant, ensuring longevity even in harsh climates
- 14 gauge, 4-conductor wire suitable for power and control wiring
This cable is essential for secure, weather-resistant wiring installations in mini split systems where exposed wiring is necessary outdoors.
Buying Guide for Mini Split Wired Thermostats
When selecting a wired thermostat for your mini split system, consider the following key factors to ensure compatibility and optimal performance:
System Compatibility
Wired thermostats must match your HVAC system type. Some thermostats support IR-controlled mini splits while others are designed specifically for ductless heat pumps or conventional HVAC setups. Check system voltage, heat/cool stages, and control type before purchase.
Smart Features & Connectivity
Modern thermostats offer WiFi connectivity, voice assistant integration (Alexa, Google Assistant), and companion apps for remote control. If smart home integration is important, prioritize thermostats with robust connectivity features and broad platform support.
Installation Requirements
Consider whether you want a DIY-friendly thermostat with simple wiring, or if it requires professional installation. Some units plug into existing wiring, others need a C-wire or adapter. Compatibility with your home’s wiring infrastructure is critical.
Control Options
Wired thermostats may include touchscreens, physical buttons, or support additional remotes. Decide based on your ease of use preferences. Programmable thermostats allow scheduling for energy savings and convenience.
Additional Safety and Durability
If wiring is exposed outdoors, choose weatherproof and UV-resistant cables to ensure longevity. Certifications like ETL can vouch for safety standards. Copper conductors enhance conductivity and reduce resistance.
Energy Efficiency Certifications
Look for ENERGY STAR certification or similar ratings to ensure your thermostat helps conserve energy and reduce utility costs.
Summary: Compatibility, connectivity, installation ease, and durability are the pillars to consider for selecting the best mini split wired thermostat that meets your home’s heating and cooling needs efficiently.