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Emerson
Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75 Black 5.625" x 3.4" x 1.17"
4.4
Based on 13,877 reviewsReal-World Testing
30 days of real-world testing
Technical Specifications
Complete product details
- Brand
- Emerson
- Model Name
- Touch Wi-Fi Thermostat
- Product Dimensions
- 1.17"D x 5.63"W x 3.2"H
- Controller Type
- Amazon Alexa, Apple HomeKit, Google Assistant, SmartThings, Vera
- Special Feature
- Auto Changeover, Daylight Savings Time Ready, Filter Indicator, Geofence Technology, Programmable
- Color
- Black
- Specific Uses For Product
- Air Conditioner, Boiler, Furnace, Heat Pump
- Temperature Control Type
- programmable
- Connectivity Technology
- Wi-Fi
- Included Components
- Installation Guide, Mounting Hardware, Owner's Manual, Thermostat, Warranty Booklet
- Power Source
- AC/DC
- Item Weight
- 0.85 Pounds
- Voltage
- 30 Volts
- Material
- Plastic
- Shape
- Rectangular
- Display Type
- Touchscreen
- Screen Size
- 4.3 Inches
- Control Type
- App Control
- Control Method
- Voice
- Connectivity Protocol
- Wi-Fi
- Mounting Type
- Wall Mount
- Style
- Black
- Backlight
- Yes
- Specification Met
- Energy Star
- Number of Batteries
- 1 AA batteries required.
- UPC
- 786710554841
- Global Trade Identification Number
- 00786710554841
- Manufacturer
- Emerson Thermostats
- Item Weight
- 13.6 ounces
- Department
- Unisex-Adult
- ASIN
- B01N3CEUDH
- Item model number
- ST75
- Batteries
- 1 AA batteries required.
- Customer Reviews
- 4.4 4.4 out of 5 stars 13,877 ratings 4.4 out of 5 stars
- Best Sellers Rank
- #6,148 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #18 in Home Programmable Thermostats
- Is Discontinued By Manufacturer
- No
- Number of pieces
- 1
- Warranty Description
- 3 years.
- Batteries required
- No
- Import
- Made in the USA
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About the Author
Expert analysis by Elias Corbin
Elias Corbin
Expert ReviewerStaff Writer
Elias writes the “Fix It Yourself” column at Review Atlas, showing how to choose external drives, NAS boxes, and the tools to install them cleanly. He stress‑tests enclosures for heat and longevity and evaluates surge protectors and UPS units beyond the spec sheet. His guides turn weekend projects into tidy, rock‑solid setups that survive power dips and movie nights alike.
Computers AccessoriesTools Home Improvement
View Full ProfileHow We Tested This Product
Our rigorous, independent testing process
Testing Period
30 days
Tested By
Elias Corbin
Our Testing Process
- We purchase all products at full retail price to ensure unbiased testing
- Products are tested in real-world conditions matching everyday use
- Our experts conduct both objective measurements and subjective evaluations
- Reviews are regularly updated as new products enter the market
- Tested according to our Home Automation Devices testing methodology
Last updated: November 17, 2025
|Independently tested and reviewed