MRCOOL Smart Thermostat in Black, 24V - No wifi on Setup Required (MST06)

Name: MRCOOL Smart Thermostat in Black, 24V - No wifi on Setup Required (MST06)
Brand: MRCOOL
SKU: MST06
Price: 117.0 USD
Availability: InStock
Rating: 4.84 (45 reviews)

| Authorized Dealer

SKU: MST06

$117.00 $149.95

Out of Stock Estimated restock: 2-4 Weeks

Only available for purchase with second MRCOOL product.

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30-Day Return Policy⁺

The MRCOOL® Smart Thermostat is designed to fit seamlessly into any home, delivering the perfect balance of comfort, convenience, and energy efficiency. Upgrade your heating and cooling system into a smarter, more responsive solution that gives you complete control right from your phone.

Getting started is simple with the MRCOOL® SmartHVAC app. Guided registration and an intuitive interface makes setup fast and frustration-free, while DIY-friendly installation gets your system running in no time—no professional install required. Fine-tune your home environment with personalized temperature thresholds and smart templates designed for comfort and efficiency. Create schedules that complement your lifestyle using presets like Home, Away, and Sleep, or build a fully customized routine that is personalized just for you.

Monitor real-time heating and cooling usage to better understand your energy consumption and maximize savings. Smart automation reduces unnecessary runtime, helping lower utility costs while maintaining ideal indoor comfort. Enjoy the ease of voice-controlled convenience with the MRCOOL® Smart Thermostat, compatible with Amazon Alexa, Google Assistant, and Siri. Location-based geofencing automatically adjusts your home’s temperature as you come and go, delivering comfort when you need it and savings when you don’t. Track, adjust, and optimize energy usage with precision to create a smarter, more efficient home.

Backed by a 3-year warranty, the MRCOOL® Smart Thermostat delivers reliable performance, advanced technology, and long-term confidence—making efficient, intelligent comfort easier than ever.

Features

Input: 24V AC
Works with: most 24V A/C residential systems
Use with: Alexa, Google, Siri, or MRCOOL Link

Net Dimensions (In)	3.9" D x 0.9" H x 3.9" W
Net Weight (Lbs)	5.6 oz
Voltage (V)	24
Color	Black
Wifi Compatibility	Yes
App Compatibility	Yes
Works With Ios	Yes
Works With Android	Yes
Base Warranty	3 Year Limited
Contains Electronics	Yes
Gross Depth (In)	6.5
Gross Height (In)	2.04
Gross Width (In)	5.4
Gross Weight (Lbs)	14.1 oz

*Shipping Policy

Free Shipping on all orders.
Large Appliances: Ship via Curbside Delivery — the carrier delivers to your property but not inside your home.
Small Items: Ship via standard ground delivery (FedEx or similar), such as small appliances, range hoods, sinks, faucets, and accessories.
See our Shipping Page for full details

⁺Return/Refund Policy

30-Day Return Policy: Return requests must be submitted within 30 days of your delivery date. We cannot process returns after this period.
Return Requirements: Products must be unused, uninstalled, and in their original packaging (including box and pallet) to qualify.
Restocking Fee: A restocking fee may apply and varies by brand. Please see our Return Policy Page for full details.

Browse MRCOOL Products

Excellent price, great service

No muss, no fuss. 1 call about extended warranty which I declined. Otherwise just straight forward drop shipment to curb, on time and as expected. All items in perfect shape, no breaks or rips in boxes.
The items (Mr. Cool 27k 3 head 9k/9k/12k DIY) installed great, easy to follow instructions. 1 wall insert was slightly cracked due to no packing material in the line box, but I it taped up and it inserted fine. Could have used more custom sized lines for fitting but otherwise very happy with product.

Perfect for our needs!

I ordered a 2 zone unit for the bedrooms in our home. It took a few months to arrive (manufacturer issue, nothing to do with HOD, and we were contacted on more than one occasion with an order update which was much appreciated!), but when it did arrive was very easy to install. Both the heat and AC function work perfectly, and our family is very happy!

Decent Company

I ordered a HVAC system and it arrived in a timely manner and with no apparent issues. I thought the system was defective once installed but it was the installers fault who wired it wrong. My only issue would be the fee (30% I believe) to return a defective item within the 30 day return policy. If it is defective the customer shouldn't have to pay a fee to return an item that is not operating as designed. Other than that this is a good company.

Pretty Easy Install and Works Great!

Installed my own central HP system. It was a bit of work but nothing beyond a person with basic mechanical and electrical skills. It took me a while because I had to remove the existing electric forced air furnace from a pretty tight place. Some custom sheet metal work and a bit of custom electrical too. Worked perfectly when powered up and I actually like the thermostat provided, although I wish it was clearer how to set up a temperature set-back schedule. Pre-charged refrigerant piping was something new and I liked that too. The best thing is that my electric utility forked out $4,000 and that paid for the unit!