---
product_id: 522936134
title: "Lite Smart Thermostat, WiFi, Alexa, DIY, Energy Star Certified, ST25"
brand: "sensi"
price: "$134.68"
currency: USD
in_stock: true
category: "Sensi"
url: https://www.desertcart.us/products/522936134-lite-smart-thermostat-wifi-alexa-diy-energy-star-certified-st25
store_origin: US
region: United States of America
---

# Save 23% HVAC energy Control from anywhere DIY install with built-in level Lite Smart Thermostat, WiFi, Alexa, DIY, Energy Star Certified, ST25

**Brand:** sensi
**Price:** $134.68
**Availability:** ✅ In Stock

## Summary

> 🌡️ Upgrade your comfort, save energy, and stay connected—smart living made simple!

## Quick Answers

- **What is this?** Lite Smart Thermostat, WiFi, Alexa, DIY, Energy Star Certified, ST25 by sensi
- **How much does it cost?** $134.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/522936134-lite-smart-thermostat-wifi-alexa-diy-energy-star-certified-st25)

## 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:** Get your smart thermostat up and running in minutes with built-in leveling and clear step-by-step guidance—no pro needed.
- • **Privacy-First Design:** Your data stays yours—no selling or ad targeting, just pure comfort control with peace of mind.
- • **Seamless Smart Control:** Manage your comfort remotely via the top-rated app or voice commands with Alexa, Google Assistant, and SmartThings integration.
- • **Slash Your Energy Bills:** ENERGY STAR-certified tech cuts HVAC energy use by about 23%, making your home smarter and your wallet happier.
- • **Universal HVAC Compatibility:** Works with most home heating and cooling systems, no common wire required for most setups—flexibility meets convenience.

## Overview

The Sensi Lite Smart Thermostat ST25 offers easy DIY installation with a built-in level, works with most HVAC systems without a common wire, and is ENERGY STAR-certified to save about 23% on energy costs. Control your home climate remotely via a top-rated app or voice assistants like Alexa, all while keeping your data private and secure.

## Description

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(2.4GHz WiFi connection)-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.

## 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
- 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 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BXZ6KXGG |
| Additional Features | Data Privacy, Easy DIY Install, Energy Savings, Programmable |
| Backlight | Yes |
| Best Sellers Rank | #4,934 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #12 in Home Programmable Thermostats |
| Brand Name | Sensi |
| Color | Black |
| Connectivity Protocol | Wi-Fi |
| Connectivity Technology | Wi-Fi |
| Control Method | App, Touch, Voice |
| Control Type | App Control |
| Controller Type | Amazon Alexa, Google Assistant, Hand Control, SmartThings |
| Customer Reviews | 4.1 4.1 out of 5 stars (2,172) |
| Display Type | LCD |
| Finish Types | Simple |
| Included Components | (2) AAA Batteries, Installation Guide, Mounting Hardware, Sensi Lite Smart Thermostat, Wire Labels |
| Item Dimensions D x W x H | 0.88"D x 5.07"W x 3.13"H |
| Item Type Name | Smart Programmable Thermostat |
| Item Weight | 4.8 ounces |
| Manufacturer | Copeland |
| Manufacturer Part Number | ST25 |
| Manufacturer Warranty Description | 3 years. |
| Model Name | Sensi Lite |
| Model Number | ST25 |
| Mounting Type | Wall Mount |
| Number of Batteries | 2 AAA batteries required. (included) |
| Power Source | Battery or C-wire |
| Product Style | Simple |
| Shape | Rectangular |
| Smart Home Compatibility | Smart Home Compatible |
| Specific Uses For Product | Air Conditioner, Boiler, Furnace, Heat Pump |
| Specification Met | Energy Star |
| Temperature Control Type | Automatic or Programmable |
| UPC | 786710568732 |
| Unit Count | 1.0 Count |
| Voltage | 24 Volts |

## Product Details

- **Brand:** Sensi
- **Controller Type:** Amazon Alexa, Google Assistant, Hand Control, SmartThings
- **Model Name:** Sensi Lite
- **Product Dimensions:** 0.88"D x 5.07"W x 3.13"H
- **Special Feature:** Data Privacy, Easy DIY Install, Energy Savings, Programmable

## Images

![Lite Smart Thermostat, WiFi, Alexa, DIY, Energy Star Certified, ST25 - Image 1](https://m.media-amazon.com/images/I/61baXEIXz8L.jpg)

## Available Options

This product comes in different **Color** 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 United States of America*
*Store origin: US*
*Last updated: 2026-07-05*