MRCOOL® Smart Thermostat – 24V Wi-Fi Thermostat with Voice Control (Alexa, Google, Siri)
MODEL: MST04
Product Description
Smart Comfort Meets Total Control — Wherever You Are
The MRCOOL® Smart Thermostat (Model: MST04) delivers intelligent, intuitive, and energy-efficient control for your home. Designed for easy DIY installation and powered by voice control, touchscreen access, and app-based automation, this 24V thermostat is the ideal upgrade for modern households.
Create the perfect atmosphere with pre-set modes like Home, Away, Sleep, or Vacation, and manage your system from anywhere with the Smart HVAC app. Fine-tune fan speeds, track usage trends, and monitor filter cleaning reminders with ease. Whether you use Alexa, Google Assistant, Siri, or MRCOOL® Link, control is always within reach.
Advanced location-based services automatically adjust your comfort levels when you're arriving or leaving home. Even if the Wi-Fi goes out, you're still in control through the device’s built-in interface. Backed by a 3-Year Warranty, the MST04 puts smart comfort and efficiency right at your fingertips.
Why You’ll Love It
✅ DIY-Friendly Install — No pro needed; set up quickly and easily
✅ Multi-Platform Control — Works with Alexa, Google Assistant, Siri & MRCOOL® Link
✅ Vacation & Smart Modes — Stay energy efficient while you’re away
✅ Location-Based Automation — Adjusts temperature as you come and go
✅ Track & Optimize Usage — Built-in system history and energy monitor
✅ Preset Modes — Home, Away, and Sleep modes tailored to your lifestyle
✅ Works Without Internet — Local touchscreen control always available
✅ One App for All Systems — Control everything in the SmartHVAC® app
✅ Backed by Warranty — 3-Year Parts Warranty for peace of mind
Specifications at a Glance
| Attribute | Details |
|---|---|
| Equipment Type | Smart Thermostat |
| Voltage | 24V |
| Reading Temp Range | 0°F – 99°F |
| Setpoint Temp Range | 45°F – 90°F |
| Pre-Set Modes | Home, Away, Sleep, Vacation |
| Wi-Fi Enabled | Yes |
| App Compatibility | iOS & Android |
| Voice Compatibility | Alexa, Google Assistant, Siri |
| Warranty | 3-Year Parts Warranty |
| Net Dimensions (WxHxD) | 3.9” x 1” x 3.9” |
| Net Weight | 0.4 lbs |
| Gross Dimensions (WxHxD) | 5.37” x 2.12” x 6.5” |
| Gross Weight | 0.95 lbs |
What’s Included:
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MRCOOL® Smart Thermostat MST04 (24V)
-
Mounting Kit
-
User Manual
- SmartHVAC® App Integration Guide
Installations & Manuals
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