MRCOOL® MST05 — Smart Wi-Fi Mini-Stat 24V Thermostat for Mini-Splits

HVAC thermostat — MRCOOL® MST05 — Smart Wi-Fi Mini-Stat 24V Thermostat for Mini-Splits

The HVAC thermostat (manufacturer part MST05) is a genuine OEM thermostat available at Cedars HVAC, your trusted source for heating, cooling, and refrigeration parts. We stock this thermostat for fast nationwide shipping from our Miami warehouse, so contractors, facility managers, and homeowners can get the exact replacement they need without delay.

Product details

MRCOOL® MST05 Smart Wi-Fi Mini-Stat — Intelligent Control for Your Mini-Split

Take full control of your MRCOOL mini-split system with the MST05 Smart Wi-Fi Mini-Stat. This 24V smart thermostat connects to your home Wi-Fi network and lets you control your system from anywhere using the MRCOOL app on your smartphone or tablet.

Key Features

• Wi-Fi Connectivity — control your system from anywhere, anytime
• 24V Compatible — works with MRCOOL DIY, EZ PRO, Olympus, and other ductless systems
• Smart Scheduling — set programmable schedules to reduce energy consumption
• Easy Installation — straightforward wall mount setup, no special tools required
• MRCOOL App Integration — intuitive interface for temperature, mode, and fan speed control
• Voice Control Ready — compatible with Amazon Alexa and Google Assistant

Perfect Add-On for Your Mini-Split

The MST05 is the ideal upgrade for any MRCOOL mini-split installation. Pair it with your new DIY 5th Gen or EZ PRO system for the ultimate smart home HVAC experience. Questions? Call (305) 850-6693.

Why buy from Cedars HVAC

• Genuine OEM HVAC parts — not aftermarket substitutes
• Contractor-friendly pricing on every thermostat
• Fast nationwide shipping from Miami, FL
• Real HVAC expertise — call us at (305) 850-6693 if you need help confirming compatibility
• Financing available at checkout

About this part

This HVAC thermostat is part of our A/C Systems catalog. Contact us if you need help identifying compatible models or sourcing volume quantities. For installation guidance, always refer to the manufacturer documentation and consult a licensed HVAC technician where required.

Shipping and returns

Most HVAC thermostat orders ship the same or next business day from Cedars HVAC in Miami, Florida. Standard ground shipping covers the continental United States, and expedited options are available at checkout. Returns are accepted within 30 days on unopened, uninstalled parts — see our return policy for full details. International shipping is available on request; contact our team for a quote.

Frequently asked questions

Is this part new and in stock? Yes, we list only in-stock items. The HVAC thermostat ships from our Miami warehouse the same or next business day.

Will this thermostat fit my equipment? Compatibility depends on the model and revision of your existing equipment. If you need help confirming fitment for the HVAC thermostat, call us at (305) 850-6693 with your unit model number and we will confirm before you order.

Can I get a contractor or wholesale discount? Yes. Cedars HVAC offers volume pricing for licensed HVAC contractors, property managers, and resellers. Request contractor pricing or call us to set up an account.

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