Emerson Sensi Touch Smart Thermostat

(Evaluated by UC Berkeley) An advanced thermostat controls residential and small commercial Heating, Ventilation, and Air Conditioning (HVAC) equipment while communicating with other systems, and uses computational capability to provide advanced functionality, such as including additional sensors, the ability to group multiple thermostats, energy reports, and/or notifications.

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Technology Basics Application Guidance Energy & Cost Impacts

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Emerson Sensi Touch Smart Thermostat

The Emerson Sensi Touch Smart thermostat has a mobile app to control multiple thermostats. The thermostat connects to WiFi and support geofencing.

Hub Highlights:

Remote occupancy through geofencing

Last Edited on: 05/26/2023

Model Number	ST75
Primary Setting	Both Commercial and Residential
User Interface Options	Mobile app (Sensi)
Multiple Thermostat Control	Multiple thermostat manager (for fee)
Access Restriction	Keypad Lockout, Setpoint Temperature Limits
Notifications/Reports	Usage reports, alerts about equipment, and maintenance reminder (filter, UV bulb, humidifier pad)
Available Sensors	Onboard relative humidity sensor
Demand Response Capable	Can participate in Utility Demand Response programs; Open Automated Demand Response (OpenADR) capable

Last Edited on: 07/2023

Model	ST75
Sample Size	1
Thermal sensor accuracy (@68F)	0.0±0.3 °F
Thermal sensor accuracy (@75F)	0.3±0.5 °F
Impact of surrounding surface temperature on Thermal sensor accuracy	Fair
Standby power	1.13 W

Last Edited on: 10/03/24

Data Collection

The technology evaluation team performed a heuristic evaluation of basic thermostat modes of operation (turning on, changing setpoint, reading display) for each of the tested products. In heuristic evaluations assess user interfaces according to guidelines for the design of user-friendly systems.

Sample Size

Estimated Usability

Good: likely good usability in most tasks; Fair: likely fair usability in most tasks.

Good