---
product_id: 527224907
title: "Emerson Thermostats Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Mobile App,Easy DIY, Compatible with Alexa, Energy Star Certified, ST25, C-Wire Not Required on Most Systems, Black"
brand: "sensi"
price: "€ 124.78"
currency: EUR
in_stock: true
category: "Sensi"
url: https://www.desertcart.pt/products/527224907-emerson-thermostats-sensi-lite-smart-thermostat-data-privacy-programmable-wi
store_origin: PT
region: Portugal
---

# 23% HVAC energy savings Wi-Fi & mobile app control Easy DIY install, no C-wire mostly Emerson Thermostats Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Mobile App,Easy DIY, Compatible with Alexa, Energy Star Certified, ST25, C-Wire Not Required on Most Systems, Black

**Brand:** sensi
**Price:** € 124.78
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay cool, save green, and keep your data clean!

## Quick Answers

- **What is this?** Emerson Thermostats Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Mobile App,Easy DIY, Compatible with Alexa, Energy Star Certified, ST25, C-Wire Not Required on Most Systems, Black by sensi
- **How much does it cost?** € 124.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/527224907-emerson-thermostats-sensi-lite-smart-thermostat-data-privacy-programmable-wi)

## Best For

- sensi enthusiasts

## Why This Product

- Trusted sensi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless DIY Setup:** Built-in level and step-by-step guide make installation a breeze—no electrician needed.
- • **Proactive HVAC Health:** Get usage reports, alerts, and maintenance reminders to keep your system running efficiently.
- • **Slash Your Energy Bills:** Energy Star certified with smart scheduling and geofencing to save you up to 23% on HVAC costs.
- • **Control Comfort Anywhere:** Top-rated mobile app lets you adjust your home’s temperature from your phone, anytime, anywhere.
- • **Privacy-First Smart Control:** Your data stays yours—no selling or ad targeting, just seamless comfort management.

## Overview

The Emerson Sensi Lite Smart Thermostat offers easy DIY installation without a common wire on most systems, Wi-Fi connectivity with a top-rated mobile app for remote control, and Energy Star certification that helps save up to 23% on HVAC energy costs. It prioritizes user privacy by not selling data, supports smart scheduling and geofencing, and provides proactive maintenance alerts to optimize HVAC performance.

## Description

SMART THERMOSTATS HAVE NEVER BEEN SO EASY Give your family’s comfort a smart upgrade. With the Sensi Lite smart thermostat, it’s never been easier. It all starts with a quick and simple installation—no common wire required with most systems*. Our top-rated mobile app lets you manage your home’s HVAC from anywhere, anytime. Plus, your usage activity and personal data stays private. That’s the power of putting Sensi’s over 100 years of HVAC experience on your wall. *For full details, review the Sensi Privacy Policy under the “Products Documentation” section below. Note: if you sign up for a program with a third party, such as a utility or controller, details and terms for that program are between you and the third party, not Emerson, and may include additional data collection. Certain add-on services require additional data to operate as intended. These services are not required and are optional.

## Features

- 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. No common wire (c-wire) required on most systems (only required on heat only and cool only 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 won’t 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
- SMART MAINTENANCE: Sensi can help monitor the performance and efficiency of your HVAC system by delivering usage reports, alerts about your equipment, and maintece reminders like filter replacement

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BXZ6KXGG |
| Additional Features | Auto Changeover, Daylight Savings Time Ready, Filter Indicator, Low Voltage, Programmable |
| Backlight | Yes |
| Best Sellers Rank | #73,252 in Computers ( See Top 100 in Computers ) #4,875 in USB Cables |
| Brand Name | Sensi |
| Color | ['Black'] |
| Connectivity Protocol | Wi-Fi |
| Connectivity Technology | Wi-Fi |
| Control Method | App |
| Control Type | App Control |
| Controller Type | App Control |
| Customer Reviews | 4.1 4.1 out of 5 stars (1,922) |
| Display Type | LCD |
| Finish Types | matte |
| Included Components | (2) AAA Batteries, Installation Guide, Mounting Hardware, Sensi Lite Smart Thermostat, Wire Labels |
| Item Dimensions D x W x H | 2.2D x 12.9W x 8H centimeters |
| Item Type Name | Smart Programmable Thermostat |
| Item Weight | 0.3 Pounds |
| Manufacturer | Emerson |
| Manufacturer Part Number | ST25 |
| Model Name | Sensi Lite |
| Model Number | ST25 |
| Mounting Type | Wall Mount |
| Number of Batteries | 2 AAA batteries required. (included) |
| Number of Items | 1 |
| Power Source | Hardwire or Power Sharing |
| Product Style | Simple |
| Shape | Rectangular |
| Specific Uses For Product | Air Conditioner, Boiler, Furnace, Heat Pump |
| Specification Met | Energy Star |
| Temperature Control Type | Automatic or Programmable |
| UPC | 786710568732 |
| Unit Count | 1 Count |
| Voltage | 24 Volts |

## Product Details

- **Brand:** Sensi
- **Controller type:** App Control
- **Model name:** Sensi Lite
- **Product dimensions:** 2.2D x 12.9W x 8H centimeters
- **Special features:** Auto Changeover, Daylight Savings Time Ready, Filter Indicator, Low Voltage, Programmable

## Images

![Emerson Thermostats Sensi Lite Smart Thermostat, Data Privacy, Programmable, Wi-Fi, Mobile App,Easy DIY, Compatible with Alexa, Energy Star Certified, ST25, C-Wire Not Required on Most Systems, Black - Image 1](https://m.media-amazon.com/images/I/61baXEIXz8L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: How does the auto changeover work? can i set it to keep the temp between 65 and 74 degrees and it turns a/c and heat on as necessary?**
A: Yes I wasn't sure how it would work.  I have my account set to 78.  AC came on when it go too hot.  Hope this helps.

**Q: Hi. My old thermostat has the red wire connect to RH which then jumps to RC. With the Sensi lite, do I just attached the red wire to R? Thank you.**
A: Sensi claims there is an internal jumper which means you only have to connect the red wire which now goes to RH. However, I had to pigtail the red wire and connect to both RH and RC

**Q: Will this thermostat work on a split unit meaning natural gas heat**
A: It works on my natural gas central unit (if you need emergency heat then no this touch lite will not work for you)

**Q: Does this have a child lock?**
A: Yes, it’s called Lock Thermostat Display. It’s located in the system settings.

## Frequently Bought Together

- 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
- CAMGJORT SA5B Wall Plate for Sen si Touch Wi-Fi Thermostat ST75,Black(1 PACK)

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---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-27*