---
product_id: 54253532
title: "ET-21 Freeze Thermostatically Controlled Outlet On at 38F /Off at 50F ET-21-1 1PCS"
brand: "heatit"
price: "฿1557"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/54253532-et-21-freeze-thermostatically-controlled-outlet-on-at-38f-off
store_origin: TH
region: Thailand
---

# Max 15 Amps Easy Plug & Play Temp Control: 38F-50F ET-21 Freeze Thermostatically Controlled Outlet On at 38F /Off at 50F ET-21-1 1PCS

**Brand:** heatit
**Price:** ฿1557
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay Warm, Save Smart! 🔥

## Quick Answers

- **What is this?** ET-21 Freeze Thermostatically Controlled Outlet On at 38F /Off at 50F ET-21-1 1PCS by heatit
- **How much does it cost?** ฿1557 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/54253532-et-21-freeze-thermostatically-controlled-outlet-on-at-38f-off)

## Best For

- heatit enthusiasts

## Why This Product

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

## Key Features

- • **User-Friendly Design:** Simply plug into any outlet for hassle-free installation.
- • **Versatile Applications:** Compatible with electric heaters, pipe heat tape, and more for diverse heating needs.
- • **Energy & Cost Efficient:** Save on energy bills while keeping your space warm and safe.
- • **Reliable Warranty Support:** Enjoy peace of mind with a 2-year limited warranty and dedicated customer service.
- • **Smart Temperature Regulation:** Automatically powers on below 38°F and off at 50°F, ensuring optimal energy use.

## Overview

The HEATIT ET-21 is a thermostatically controlled outlet that activates below 38°F and deactivates at 50°F, designed for easy plug-and-play installation. Ideal for various heating applications, it ensures energy efficiency while providing reliable performance, backed by a 2-year warranty.

## Description

HEATIT ET-21 Freeze Thermostatically Controlled Outlet On at 38F /Off at 50F

## Features

- Thermostat control outlet with the smart indicator light: The indicator light turns on when it's below 38 and it has energized the outlet.
- Energize below 38℉(3℃) and to turn off automatically at approximately 50℉(10℃). Automatically turns power on and off according to ambient temperature. Save energy and save money.
- Easy installation: just plug this device into electrical outlet. Maximum 15 amps. CSA approved. Only for dry location.
- Can be use for other applications: 120 VAC electric heaters, gas heater, Engine heaters, pipe heat tape, roof heating cable and so on.
- Make a test when you received the product.  Put it into the freezer for 45 minutes.  And then plug in and you will see the red light on the thermostat control. Two year limited warranty- If you are not completely satisfied with HEATIT ET-21, please don't hesitate to contact us in any time, we'll try our best to solve your issues.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HEATIT |
| Color | Yellow |
| Power Source | Corded Electric |
| Voltage | 120 Volts |
| Control Type | Button Control |
| Control Method | App |
| Connectivity Protocol | Wi-Fi |
| Backlight | Yes |
| Manufacturer | Zhukeshi |
| Part Number | 43551-106081 |
| Item Weight | 3.2 ounces |
| Package Dimensions | 6.42 x 3.66 x 1.46 inches |
| Item model number | 43551-106081 |
| Is Discontinued By Manufacturer | No |
| Size | 1 Count (Pack of 1) |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![ET-21 Freeze Thermostatically Controlled Outlet On at 38F /Off at 50F ET-21-1 1PCS - Image 1](https://m.media-amazon.com/images/I/519LSeeSexL.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.co.th/products/54253532-et-21-freeze-thermostatically-controlled-outlet-on-at-38f-off](https://www.desertcart.co.th/products/54253532-et-21-freeze-thermostatically-controlled-outlet-on-at-38f-off)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-06-14*