Smart Thermostat Lite

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Find out everything you need to know about all the cool features.

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HVAC technician shows a homeowner how to use an ecobee thermostat

The smart choice for contractors, exclusive to our Pro customers.

Meet the all-new Smart Thermostat Lite. Built for simplicity with input from contractors, it's easy to install and use, hardwired for reliability, built to last, and designed to save your customers up to 23%^* on their heating and cooling costs. Best of all, it's a Pro customer exclusive.

Hardwired for reliability — batteries not required
1-wire accessory support
Setup designed for pros

The right fit for your next project.

See how Smart Thermostat Lite fits into our thermostat line-up.

Thermostat Features	Smart Thermostat Lite	Smart Thermostat Enhanced	Smart Thermostat Premium
Perfect for	Light commercial & multifamily	Single-family & multifamily	Premium homes & condos
Savings on heating and cooling costs	Up to 23%^*	Up to 26%^*	Up to 26%^*
Premium industrial design features	Glass display	Glass display	Metal body, glass display
Display size	H: 58 mm, W: 43 mm	H: 70 mm, W: 70 mm	H: 70 mm, W: 70 mm
Resolution	240px × 320px	540px × 540px	540px × 540px
24V heating and cooling system compatibility	~95%	~90%	~95%
Wire terminals	Rc, Rh, W1, W2, Y1, Y2, C, OB, G/PEK, ACC	R, W1, W2/OB, Y1, Y2, C, PEK+, G	Rc, Rh, W1, W2, Y1, Y2, C, O/B, PEK+, G, ACC+, ACC-
HVAC accessory support	1-wire acc.	1-wire acc.	1-wire acc, 2-wire acc., or dual accessory support
Ventilator support	HRV, ERV, Standard	HRV, ERV, Standard	HRV, ERV, Standard
Trim Kit included in the box

^† Compatible Apple home hub required to enable Siri on Smart Thermostat Premium. Apple HomePod and HomePod mini are compatible home hubs. All Siri capabilities are available on the thermostat except voice calling.

^‡ Requires ecobee Smart Security Subscription. Please note, Smart Thermostat Lite support for ecobee Smart Security is coming soon.

^§ Requires ecobee Smart Security Subscription and SmartSensor for door and windows (sold separately).

^¶ You can use geofencing on an Android phone via the ecobee app, if you use iOS, then geofencing is handled via Apple HomeKit and requires a HomeKit hub. Learn more.

What you loved about ecobee3 lite, with a sleek new design and accessory support.

Smart Thermostat Lite was built with input from contractors like you, making it the perfect solution for your HVAC needs. It works with most HVAC systems and can now easily support and control 1-wire HVAC accessories.

Need a common wire? Grab our Power Extender Kit — sold separately.

HVAC technician installs ecobee thermostat

Hardwired for reliability.

Keep jobs running smoothly and your customers happy with ecobee Smart Thermostat Lite. It’s hardwired for reliability and built to last with an extended warranty when installed by a pro. Plus, spend more time focusing on your business with reduced customer callbacks thanks to Smart Thermostat Lite.

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hvac technician installs an ecobee thermostat

Quick installation. Easy setup.

Save valuable time and effort with Smart Thermostat Lite's Pro First Run Setup experience. Installation is easy to learn and master, letting you move on to your next job even faster.

View installation videos

Works with leading smart home ecosystems, including Apple Homekit.

Apple HomeKit
Alexa Built-in
Google Assistant
Alarm.com

Features & Specs
:
Delight customers. Avoid callbacks.

Unlike battery-operated smart thermostats, this hardwired device minimizes the hassle of replacing batteries and reduces the risk of product failure. Find out what else is in-store for you and your customers.

Capable, compatible, and convenient

Energy saving with eco+

Effortless control

Notifications and reports

Advanced thermostat capabilities

Built to last

Privacy

Works with SmartSensor

Display

2.8 in. full-color LCD touchscreen
240 x 320 pixel display

Dimensions

Thermostat

Height: 92 mm (3.62 in.)
Width: 92 mm (3.62 in.)
Depth: 23 mm (0.91 in.)

Colors

Black front, white sides and back

Thermostat sensors

Temperature
Humidity

Compatibility

Gas, Oil, Electric, Dual-fuel, Forced air, Conventional (2H/2C), Heat Pump (4H/2C), Humidifier, Dehumidifier, Ventilator, HRV or ERV

Wire Terminals

Rc
G/PEK
Y1
Y2
O/B

Rh
C
W1
W2
ACC

Connectivity & security

Wi-Fi: 802.11 b/g/n/ax @ 2.4GHz
Bluetooth BLE 5.4
WPA2, WPA3 encryption methods
DHCP (dynamic) or static IP addressing
Sub-GHz radio

Works with

Apple HomeKit, Amazon Alexa, Google Assistant, and Alarm.com.

Bandwidth

5 MB/month

Power consumption

Less than 3 VA

Powering methods

Wired 24VAC through terminals C and Rc.
Power Extender Kit (sold separately) available for installation in homes without a C or common wire.

Sustainability

Recycled packaging
Mercury-free
Arsenic-free
PVC-free
ROHS compliant

Temperature range

Desired Temperature: 45° to 120°F (7° to 49°C)
Display: 32° to 120°F (0° to 49°C)
Sensitivity: +/− 1°F (+/− 0.5°C)
Operating: 14° to 122°F (-10° to 50°C)

Humidity range

Display: 20% to 90%
Sensitivity: +/− 5%
Operating: 5% to 95% RH (non-condensing)

Storage

−4° to 113°F (−20° to 45°C)
5% to 95% RH (non condensing)

Warranty

5-year extended warranty

Languages

English

What's in the box

Smart Thermostat Lite
Backplate
Quick-start guide
Wire labels
Screws and drywall plugs

Optional for installation:

Trim plate

Display

Dimensions

Colors

Thermostat sensors

Compatibility

Wire Terminals

Connectivity & security

Works with

Bandwidth

Power consumption

Powering methods

Sustainability

Temperature range

Humidity range

Storage

Warranty

Languages

What's in the box

Gallery
:
The difference is in the details.

Stronger, more durable, more reliable, and more beautifully designed thermostats.

Built to last.

ecobee smart thermostats are built to last with quality materials and are supported by free software upgrades.

Industry-leading warranty.

Our smart thermostats are covered by a 5-year extended warranty when installed by a pro.

Dedicated Pro support.

Setup is easy to learn and master and our dedicated Pro support line provides quick and reliable help.

^* Compared to a hold of 72°F/22°C.

^¹ Based on an internal analysis conducted in April, 2021, select ecobee customers in North America saved up to 23% on their heating and cooling costs. When you add up the average cost of electricity and natural gas used for heating and cooling ($1,091 USD/$1,490.52 CAD) and multiply it by 23% (Smart Thermostat Lite’s savings claim) you get savings of up to $250/$327 (USD/CAD) per year. Annual savings will vary based on your energy use and location.

² Smart Thermostat Lite is not compatible with ecobee Room Sensor^TM, our first-generation remote thermostat sensor.