---
product_id: 633730820
title: "Digital Temperature Controller Thermostat Outlet Plug 120V with LCD Backlight, Heating Cooling Temperature Controlled Outlet 110V 15A with 3m Sensor"
brand: "ketotek"
price: "190 zł"
currency: PLN
in_stock: true
reviews_count: 10
category: "Ketotek"
url: https://www.desertcart.pl/products/633730820-digital-temperature-controller-thermostat-outlet-plug-120v-with-lcd-backlight
store_origin: PL
region: Poland
---

# 3m high-precision NTC sensor 15A/120V max output power Wide temp range -40℉ to 248℉ Digital Temperature Controller Thermostat Outlet Plug 120V with LCD Backlight, Heating Cooling Temperature Controlled Outlet 110V 15A with 3m Sensor

**Brand:** ketotek
**Price:** 190 zł
**Availability:** ✅ In Stock

## Summary

> 🌟 Take control of your climate like a pro—precision meets convenience!

## Quick Answers

- **What is this?** Digital Temperature Controller Thermostat Outlet Plug 120V with LCD Backlight, Heating Cooling Temperature Controlled Outlet 110V 15A with 3m Sensor by ketotek
- **How much does it cost?** 190 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/633730820-digital-temperature-controller-thermostat-outlet-plug-120v-with-lcd-backlight)

## Best For

- ketotek enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Simplicity:** No wiring needed—just set your temps and let it auto-switch heating/cooling modes.
- • **Versatile 5-Mode Control:** From countdown timers to temperature cycling, tailor your environment with precision.
- • **Crystal-Clear LCD Backlight:** Wide-angle, customizable backlight for effortless monitoring anytime, anywhere.
- • **Universal Application Ready:** Perfect for greenhouses, incubators, homebrews, and more with dual °F/°C support.
- • **Rock-Solid Safety & Reliability:** Fire-resistant build with saved settings even after power outages—trustworthy 24/7.

## Overview

The KETOTEK Digital Temperature Controller is a robust 120V thermostat outlet featuring a wide temperature range (-40℉ to 248℉), a 3-meter high-precision NTC sensor, and a bright LCD backlight. Designed for easy plug-and-play use, it supports five versatile modes for heating and cooling control, making it ideal for applications from incubators to homebrewing. Its fire-resistant construction and power outage memory ensure safe, reliable operation, while dual Fahrenheit/Celsius display and temperature calibration guarantee accuracy.

## Description

Temperature Controller Humidity Controller & More

Review: Works really well, very accurate - I use this with a space heater to control the temperature of my bedroom. I like that the thermometer is attached via a long wire, so I can move the thermometer a distance away from the heater, so it better represents the average temperature of the room. To help buffer the thermometer from brief changes in temperature (e.g. AC kicks on, hot or cold breeze), I wrapped it with a paper towel and tape. Setup was easy and I haven't experienced any glitches. The only thing I can complain about is the blue indicator light that turns on when the temperature is within the operating range. It's very bright. To address this, I put some tape over it, no big deal.
Review: Works well to convert a chest freezer into a refrigerator. - I use this unit to "convert" a vintage (1970's) chest freezer into a refrigerator. The temperature range settings are very easy to adjust, and the included booklet has good instructions to do such. I appreciate that this unit displays the current temperature of the unit (via a temperature probe), as well as the current settings for max/minimum temperature ranges. I have been using this for several months and it hasn't skipped a beat. I have auxiliary analog thermometers in the actual fridge itself, and they indicate the same temperature as the digital readout on the unit itself. It is very user-friendly to set up and adjust. I am quite happy with this thermostat and would likely purchase another one if needed in the future.

## Features

- User-Friendly LCD Display for Clear Visibility – Wide-viewing-angle LCD with backlight ensures easy reading in low light or from any angle. Press any key to activate the backlight; press DOWN to turn off the backlight. Customize backlight duration: 10 min, 1 hr, 4 hrs, 8 hrs, or always on.
- Easy Setup, No Wiring Needed – Just plug in your device, set your desired start/stop temperatures, and let the KT3100BL thermostat outlet plug take over! It automatically switches between heating and cooling modes based on your settings. Wide temperature range: -40℉~248℉ (-40℃~120℃) for versatile heating or cooling applications.
- 5 Modes for Versatile Use - Switch 5 modes instantly with the MODE button: Temperature Control mode, F01 cycler timer mode, F02 Countdown ON mode, F03 Countdown OFF mode, F04 Countdown ON and Countdown OFF mode. Set range: 0~99 hours 59 minutes. Please note: Temperature Control Mode cannot run simultaneously with other modes.
- Safe and reliable design - Made in fire-resistant and durable materials for long-term stable operation, this thermostat plug outlet uses a 3-meter high-precision NTC 10K temperature sensor to monitor temperature in real-time, ensuring accurate and precise temperature control. Your settings are safely saved even during a power outage, no need to set again after power restoration.
- Wide application. This thermostat plug outlet works in both Fahrenheit and Celsius. It supports a temperature calibration function to ensure that the displayed temperature matches the actual temperature. This temperature controller is suitable for greenhouse, reptile, incubator, terrarium, freezer, refrigerator, heater, fridge, homebrew, vivarium, fermentation, heat mat, and other temperature-controlled system. Output: Max 15A/120V.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D3X3JSKN |
| Best Sellers Rank | #23,681 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #21 in Temperature Controllers |
| Brand | KETOTEK |
| Brand Name | KETOTEK |
| Customer Reviews | 4.5 out of 5 stars 848 Reviews |
| Display Type | LCD |
| Included Components | 1*Thermostat Plug Outlet; 1*Manual |
| Manufacturer | KETOTEK |
| Material | Plastic |
| Material Type | Plastic |
| Model | KT3100BL |
| Operating Temperature | 248 Degrees Fahrenheit |
| Part Number | KT3100BL US |
| Smart Home Compatibility | Not Smart Home Compatible |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** KETOTEK
- **Display Type:** LCD
- **Material:** Plastic
- **Operating Temperature:** 248 Degrees Fahrenheit
- **Unit Count:** 1.0 Count

## Images

![Digital Temperature Controller Thermostat Outlet Plug 120V with LCD Backlight, Heating Cooling Temperature Controlled Outlet 110V 15A with 3m Sensor - Image 1](https://m.media-amazon.com/images/I/517Lt1GRJ5L.jpg)
![Digital Temperature Controller Thermostat Outlet Plug 120V with LCD Backlight, Heating Cooling Temperature Controlled Outlet 110V 15A with 3m Sensor - Image 2](https://m.media-amazon.com/images/I/71ZuJEL-m1L.jpg)
![Digital Temperature Controller Thermostat Outlet Plug 120V with LCD Backlight, Heating Cooling Temperature Controlled Outlet 110V 15A with 3m Sensor - Image 3](https://m.media-amazon.com/images/I/717Yk4dWWjL.jpg)
![Digital Temperature Controller Thermostat Outlet Plug 120V with LCD Backlight, Heating Cooling Temperature Controlled Outlet 110V 15A with 3m Sensor - Image 4](https://m.media-amazon.com/images/I/71rcFeqEZmL.jpg)
![Digital Temperature Controller Thermostat Outlet Plug 120V with LCD Backlight, Heating Cooling Temperature Controlled Outlet 110V 15A with 3m Sensor - Image 5](https://m.media-amazon.com/images/I/71BWuCW0XjL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works really well, very accurate
*by D***N on November 6, 2024*

I use this with a space heater to control the temperature of my bedroom. I like that the thermometer is attached via a long wire, so I can move the thermometer a distance away from the heater, so it better represents the average temperature of the room. To help buffer the thermometer from brief changes in temperature (e.g. AC kicks on, hot or cold breeze), I wrapped it with a paper towel and tape. Setup was easy and I haven't experienced any glitches. The only thing I can complain about is the blue indicator light that turns on when the temperature is within the operating range. It's very bright. To address this, I put some tape over it, no big deal.

### ⭐⭐⭐⭐⭐ Works well to convert a chest freezer into a refrigerator.
*by C***Y on December 17, 2024*

I use this unit to "convert" a vintage (1970's) chest freezer into a refrigerator. The temperature range settings are very easy to adjust, and the included booklet has good instructions to do such. I appreciate that this unit displays the current temperature of the unit (via a temperature probe), as well as the current settings for max/minimum temperature ranges. I have been using this for several months and it hasn't skipped a beat. I have auxiliary analog thermometers in the actual fridge itself, and they indicate the same temperature as the digital readout on the unit itself. It is very user-friendly to set up and adjust. I am quite happy with this thermostat and would likely purchase another one if needed in the future.

### ⭐⭐⭐⭐⭐ Oh man these are great.
*by P***L on February 7, 2026*

Saw them on a technology connections video and knew I needed them. I’d been looking for a good controller for my space heater and these work fantastically. I’ve even got one out in the well house that’s been going strong all winter.

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---

*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-29*