10 Best Lockable Thermostat of 2025

Tested and Reviewed: Top 10 Lockable Thermostat deals with expert ratings from 8.1 to a perfect 10

July 2025 Edition

Editor's Choice

9.7

Save 34%

Honeywell Home

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray

34% OffFree Shipping

Editor's bottom line:

“This lockable thermostat is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

COMFORT COMES IN YOUR COLOR. Personalize your Wi-Fi Smart Color Programmable Thermostat to fit your décor.
SAVE ENERGY AND GET REWARDED by checking with your energy provider about available rebates. Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand.
YOUR SCHEDULE. YOUR WAY. Flexible programming options for your schedule or utility companys peak rate pricing.
EASY OPERATION AND INTUITIVE. Bright, easy-to-read touchscreen makes for simple operation.
COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). C-Wire required.
ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.
Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter. Our Air products and services work with you and for you, supporting and creating more comfortable surroundings
Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.
Fan Control Options include On: Fan is always on; Automatic: Fan runs only when the heating or cooling system is on; and Circulate: Fan runs randomly about 35% of the time.
The WiFi Smart Color Thermostat works seamlessly with Amazon Alexa and Google Home, as well as our mobile app, so you can control the temperature from anywhere

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Picked by 178 people today

9.5

Save 11%

ecobee

ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant

11% OffFree Shipping

Main Highlights

Save up to 23% per year on heating and cooling costs. Adjusts to your set schedule to save energy when youre gone and optimize comfort when youre home. Compared to a hold of 72°F
Compatible with 85% of systems, check your systems compatibility with our online ecobee Compatibility Checker on the ecobee support page
Change your temperature by easily tapping your thermostat's color touchscreen or using the top rated ecobee app.
Automatically adjusts to your set schedule to save energy when youre gone and optimize comfort when youre home. Keep track of your energy consumption when you're on the go on the ecobee app.
Easy DIY install. No C Wire, no problem. Get the ecobee Power Extender Kit (PEK) for homes without a C-Wire and keep your walls looking nice with our trim kit both sold separately.
Works with leading smart home ecosystems. Pair with Apple HomeKit, Google Assistant, and Alexa.
Works with most 24 VAC HVAC equipment: Gas, oil, electric, dual fuel, forced air Conventional (2H/1C or 1H/2C) Heat Pump (2H/1C) Boilers. You can check your systems compatibility with the online ecobee Compatibility Checker on the ecobee support page
Add in a SmartSensor which allows you to measure the temperature in rooms that matter most, like the nursery or bedroom. (SmartSensor 2 pack sold separately).
Built in eco+ Smart Features: Indoor humidity detection, schedule assistant, time of use which preheats or precools your home when energy is less expensive to reduce energy use during peak hours.

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9.5

Save 19%

Google

Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Charcoal

19% OffFree Shipping

Main Highlights

ENERGY STAR certified smart thermostat for home that helps you save energy and stay comfortable.Connectivity : Wi-Fi - 802.11b/g/n 2.4 GHz, 802.11a/n 5 GHz Wi-Fi., Wireless interconnect : Bluetooth Low Energy Please refer to the product description section below for all applicable legal disclaimers.Product note: You can also check your systems compatibility before purchasing a Nest thermostat with our online Nest Compatibility Checker on the Google Nest support page
The Nest Thermostat is designed to work without a C wire in most homes, but for some systems, including heating only, cooling only, zone controlled, and heat pump systems, youll need a C wire or other compatible power accessory
Nest Thermostat turns itself down when you leave, so you dont waste energy heating or cooling an empty home. Lock feature: No
Programmable thermostat that lets you create an energy efficient schedule in the Google Home app on your Android or iPhone
Remote control lets family members change the thermostat temperature from anywhere on a phone, laptop, or tablet[1]
Savings Finder looks for more ways your thermostat can help you save, and suggests tweaks to your schedule in the app; check with your energy provider to learn more about rebates and more ways to save on a Nest thermostat
Smart thermostat with HVAC monitoring, which looks out for your heating and cooling systems; sends an alert if something doesnt seem right, along with helpful reminders to make maintenance easier[2]
Control Nest Thermostat with Google Home and other smart home platforms. Compatible with Google Assistant and all Matter-certified voice assistants. Voice control requires a compatible smart device.
Connectivity : Wi-Fi - 802.11b/g/n 2.4 GHz, 802.11a/n 5 GHz Wi-Fi., Wireless interconnect : Bluetooth Low Energy
Please refer to the product description section below for all applicable legal disclaimers

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9.2

Amazon

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

Free Shipping

Main Highlights

Smart upgrade - Amazon Smart Thermostat is an easy way to switch from a traditional thermostat and help reduce energy usage.
Supports temperature sensors - use compatible Echo devices (Echo Dot (4th and 5th gen), Echo Dot with clock (5th gen)), and the Amazon Smart Air Quality Monitor as temperature sensors to address hot or cold spots in your home.
Save money - After purchase, Amazon will send you an email with details about rebates that may be available from energy providers in your area. Explore rebates above.
Save energy - According to EPA estimates, ENERGY STAR certified thermostats save an average of $50 on yearly energy bills.
Automatic Control - Alexa can automatically switch between your preferred home, away, and sleep temperatures.
On-the-go control - Let Alexa set the temperature, or set it yourself from anywhere with the Alexa app.
You can do it - The Alexa app will guide you through the installation process, but customer service is always available.
Reliable - Made with Honeywell Home Thermostat Technology and backed by 130 years of experience.

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9.0

Save 18%

Emerson

Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Easy DIY, Works With Alexa, Energy Star Certified, ST25, Most Systems C-Wire Not Required, Except On Heat/Cool Only and Heat Pump System

18% OffFree Shipping

Main Highlights

EASY DIY INSTALLATION: Do it yourself fast with a built-in level and simple step-by-step instructions. Works with the HVAC equipment found in most homes
COMMON WIRE REQUIREMENTS: Common wire(C-Wire) required for heat pump and heat/cool only systems. C-wire not required on most systems
SAVE ABOUT 23% ON HVAC ENERGY*: ENERGY STAR-certified and packed with features that help you save money, including flexible scheduling, geofencing, remote access and usage reports
PRIVACY PROTECTION*: Sensi wont sell your personal information to third parties or leverage your thermostat activity data for targeting or advertising purposes
CONTROL FROM ANYWHERE: The top-rated mobile app for Android and iOS devices makes it easy to control your comfort from a smartphone or tablet

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8.8

ControlTemp Thermostats

ControlTemp CT72 Basic Tamper Proof Thermostat

Free Shipping

Main Highlights

Tamper Proof Thermostat for landlord and commerical property owners
Renters/Guest can not set heat over 72 degrees
Renters/Guests can not set AC below 72 degrees
Works with most system types including Boiler, Furnance, Single Heat pumps

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8.6

Save 17%

EdgeAnt

Smart Thermostat for House, WiFi Programmable Thermostat Compatible with Alexa and Google Assistant, Remote Control Tuya/Smart Life, C-Wire Required, Energy Saving

17% OffFree Shipping

Main Highlights

, you need to check your systems compatibility with our EdgeAnt support.Check your home's compatibility with the EdgeAnt smart thermostat at: support.edgeant.com/check/
: 2-Wire heat only, electric baseboard heat (120-240V), Line (High) voltage systems, Millivolt systems, Non-standard labels (1,2,3, or A, B, C), Humidifiers, Dehumidifiers
Wide Compatibility: This thermostat is compatible with 90% of home systems, including Conventional (2H/2C) and Heat Pump (4H/2C). It supports natural gas, electric, hot water, gas fireplaces (24V), and oil heat sources. Note that all system types require a common wire (C-Wire).
The EdgeAnt Thermostat is designed to work with most 24V systems: furnaces, air conditioners, boilers, heat pumps with AUX or Emergency Heat. Only for 2.4GHz WiFi; (-)
Energy Saving: Reduce heating and cooling costs by over 25% annually. Track your energy savings through the 'Smart Life' App and contribute to a greener home.
App Control & Voice Control: Adjust the temperature from anywhere using your phone or turn it off when you're away. And compatible with Alexa and Google assistant for hands-free voice control. Keep pets comfortable and prevent frozen pipes. Easily share control with guests and family through the Smart Life app.
Live Smart & Save Energy: With 7-day programmable schedules, this thermostat automatically adjusts your home's temperature to ensure comfort upon arrival while reducing HVAC expenses.
Versatile Functions: Our programmable thermostat includes temperature alerts, filter change reminders, automatic time/date synchronization, and a child lock feature. These functions ensure both comfort and peace of mind for your home.

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8.3

Honeywell Home

Honeywell Home Home RTH6360D1002 Programmable Thermostat, 5-2 Schedule, 1-Pack, White

Free Shipping

Main Highlights

The RTH6360D offers flexible 5-2-Day or 1-Week programming so you can set your own schedule for comfort and energy conservation.
Backlit LCD display shows current room temperature and set point temperature simultaneously.
Smart Response Technology learns how long it takes to achieve the right temperature at the right time and automatically runs your system to get to your desired temperature when you want it.
Features auto changeover between heat and cool and reminder alerts for low batteries and filter changes.
Program is retained in memory in the event of a power outage so you can be confident your comfort stays intact.
The UWP mounting system, included mounting hardware, and quick install guide can have your thermostat up and running quickly.
Real-time clock automatically adjusts for daylight savings time
Compatible with: forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup.
Does NOT work with electric baseboard heat (120-240V).

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8.1

Gedreew

Gedreew Large Thermostat Lock Box Cover with Key, Clear Thermostat Cover with Lock Compatible With Honeywell Home Thermostat On Wall, AC Lock Box Cover with Key Fits Thermostats 5"H x 6" W or Smaller

Free Shipping

Main Highlights

Safeguard Your ThermostatThe thermostat lock box with key prevent unauthorized adjustments, tampering and damage to thermostat settings by children, tenants, or the public. Enjoy reduced energy costs and significant savings for your household
Crystal Clear Durable PC MaterialGedreew thermostat lock box crafted from robust and chemically resistant PC plastic. This thermostat cover with lock offers exceptional durability, UV resistance, and anti-yellowing properties. Enjoy a clear view of your thermostat settings at all times
Perfect Fit for Various ThermostatsThe thermostat lock box designed to accommodate thermostats measuring 7.28"W x 5.75"H x 2.75"D or smaller. Whether it's for your home, apartment, office, school, hotel, restaurant, or industrial space, our ac lock box cover with key finds its place everywhere, ensuring optimal protection and security
Maintaining Temperature PrecisionFeaturing a four-sided ventilation design, this lock box for thermostat on wall prevents interference with temperature detection, ensuring the accurate performance of your thermostat without compromise
Easy InstallationThis thermostat cover with lock can be installed without removing the thermostat; May need to mount thermostat off-center within thermostat lock box for access to battery door on select models

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8.1

Emerson

Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55

Free Shipping

Main Highlights

PRIVACY PROTECTION*: Sensi wont sell your personal information to third parties
EASY DIY INSTALLATION: Use the built-in level and step-by-step app instructions for a quick installation. Works with HVAC equipment found in most homes. Common wire (c-wire) is not required in most applications
SAVE ABOUT 23% ON HVAC ENERGY*: The ENERGY STAR-certified Sensi smart thermostat can help you save energy with features like flexible scheduling, remote access, and usage reports
SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering valuable usage reports, alerts about your equipment, and maintenance reminders like filter replacement
SIMPLE CONFIGURATION: Looks and feels like a thermostat. Has buttons and fits the same space as a traditional thermostat so you dont have to patch and paint your walls

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Our Best Overall Choice

Best Choice

9.7

Honeywell Home

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray

34% OffFree Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

COMFORT COMES IN YOUR COLOR. Personalize your Wi-Fi Smart Color Programmable Thermostat to fit your décor.
SAVE ENERGY AND GET REWARDED by checking with your energy provider about available rebates. Plus, eligible customers can enroll in their local Utility's "DEMAND RESPONSE PROGRAM" which can reward you for allowing the utility to slightly adjust your AC or furnace temperature settings when there is high energy demand.
YOUR SCHEDULE. YOUR WAY. Flexible programming options for your schedule or utility companys peak rate pricing.
EASY OPERATION AND INTUITIVE. Bright, easy-to-read touchscreen makes for simple operation.
COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). C-Wire required.
ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.
Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter. Our Air products and services work with you and for you, supporting and creating more comfortable surroundings
Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.
Fan Control Options include On: Fan is always on; Automatic: Fan runs only when the heating or cooling system is on; and Circulate: Fan runs randomly about 35% of the time.
The WiFi Smart Color Thermostat works seamlessly with Amazon Alexa and Google Home, as well as our mobile app, so you can control the temperature from anywhere

Show Price

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ecobee Smart Thermostat Enhanced - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - Smart Home

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Honeywell Home Smart Color Wi-Fi Programmable Touch Screen Thermostat, Energy Star, Alexa Ready, White - C-Wire Required, Not Compatible with Line Volt Heating, RTH9600WF

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ControlTemp CT400 Advanced Tamper Proof Thermostat, 5.5''Wx3.75''Hx1''D

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Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Energy Star, C-Wire Required

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TRJ Large Thermostat Lock Box with Key, Clear Thermostat Cover with Lock for Thermostat on Wall, Lockable Thermostat Lock Box Cover, AC Lock Box Cover with Key Fit Thermostats 4" H x 6" W or Smaller

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TRJ Thermostat Lock Box with Key, Large Thermostat Cover with Lock for Thermostat on Wall, AC Control Lock Box Cover with Key, Air Conditioner Lockbox Fits Thermostats 4" H x 6" W or Smaller

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Deals are Live

Special Amazon deal ends in:

10 Best Lockable Thermostat of 2025

Tested and Reviewed: Top 10 Lockable Thermostat deals with expert ratings from 8.1 to a perfect 10

Honeywell Home

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray

Editor's bottom line:

Main Highlights

ecobee

ecobee Smart Thermostat Essential - Energy Star Certified programmable Wi-Fi Thermostat - Works with Siri, Alexa, and Google Assistant

Main Highlights

Google

Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Charcoal

Main Highlights

Amazon

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

Main Highlights

Emerson

Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Easy DIY, Works With Alexa, Energy Star Certified, ST25, Most Systems C-Wire Not Required, Except On Heat/Cool Only and Heat Pump System

Main Highlights

ControlTemp Thermostats

ControlTemp CT72 Basic Tamper Proof Thermostat

Main Highlights

EdgeAnt

Smart Thermostat for House, WiFi Programmable Thermostat Compatible with Alexa and Google Assistant, Remote Control Tuya/Smart Life, C-Wire Required, Energy Saving

Main Highlights

Honeywell Home

Honeywell Home Home RTH6360D1002 Programmable Thermostat, 5-2 Schedule, 1-Pack, White

Main Highlights

Gedreew

Gedreew Large Thermostat Lock Box Cover with Key, Clear Thermostat Cover with Lock Compatible With Honeywell Home Thermostat On Wall, AC Lock Box Cover with Key Fits Thermostats 5"H x 6" W or Smaller

Main Highlights

Emerson

Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55

Main Highlights

Our Best Overall Choice

Honeywell Home

Honeywell Home RTH9585WF1004 Wi-Fi Smart Color Thermostat, 7 Day Programmable, Touch Screen, Energy Star, Alexa Ready, Gray

Editor's bottom line:

Main Highlights

Related Deals You Might Like for Lockable Thermostat

ecobee Smart Thermostat Enhanced - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - Smart Home

Honeywell Home Smart Color Wi-Fi Programmable Touch Screen Thermostat, Energy Star, Alexa Ready, White - C-Wire Required, Not Compatible with Line Volt Heating, RTH9600WF

ControlTemp CT400 Advanced Tamper Proof Thermostat, 5.5''Wx3.75''Hx1''D

Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Energy Star, C-Wire Required

Vine Thermostat for Home with Touchscreen Color Display, WiFi Smart Thermostat Compatible with Alexa and Google Assistant, 7day/8period Programmable, Energy Saving, C-Wire Required, Screen Size 2.8"

Honeywell Home RTH7600D 7-Day Programmable Touchscreen Thermostat, White

Honeywell TH4110U2005/U T4 Pro Program Mable Thermostat, White

Honeywell Home RTH221B1039 1-Week Programmable Thermostat

TRJ Large Thermostat Lock Box with Key, Clear Thermostat Cover with Lock for Thermostat on Wall, Lockable Thermostat Lock Box Cover, AC Lock Box Cover with Key Fit Thermostats 4" H x 6" W or Smaller

TRJ Thermostat Lock Box with Key, Large Thermostat Cover with Lock for Thermostat on Wall, AC Control Lock Box Cover with Key, Air Conditioner Lockbox Fits Thermostats 4" H x 6" W or Smaller

Deals are Live