---
product_id: 216143790
title: "KETOTEK Digital Thermostat Plug Socket Temperature Controller 220V with Sensor Probe, Thermostatic Plug Heating Cooling for Greenhouse Freezer Refrigerator Fermentation"
brand: "ketotek"
price: "428 kr"
currency: DKK
in_stock: true
reviews_count: 8
url: https://www.desertcart.dk/products/216143790-ketotek-digital-thermostat-plug-socket-temperature-controller-220v-with-sensor
store_origin: DK
region: Denmark
---

# Up to 99h 59m programmable timer Max 13A/230V output power ±1℃ temperature control accuracy KETOTEK Digital Thermostat Plug Socket Temperature Controller 220V with Sensor Probe, Thermostatic Plug Heating Cooling for Greenhouse Freezer Refrigerator Fermentation

**Brand:** ketotek
**Price:** 428 kr
**Availability:** ✅ In Stock

## Summary

> 🌡️ Take control of your climate, effortlessly and precisely!

## Quick Answers

- **What is this?** KETOTEK Digital Thermostat Plug Socket Temperature Controller 220V with Sensor Probe, Thermostatic Plug Heating Cooling for Greenhouse Freezer Refrigerator Fermentation by ketotek
- **How much does it cost?** 428 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/216143790-ketotek-digital-thermostat-plug-socket-temperature-controller-220v-with-sensor)

## 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 Precision:** Effortlessly automate heating/cooling with simple setup and ±1℃ accuracy.
- • **Rapid Response Sensor:** 3-meter NTC 10K probe ensures fast, reliable temperature readings to prevent drift.
- • **Dual Mode Smart Control:** Seamlessly switches between heating and cooling based on your custom temperature range.
- • **Built to Last & Remember:** Fire-resistant design with memory retention keeps your settings safe through outages.
- • **Versatile Timer Functions:** Choose from 4 cycle and countdown modes for ultimate scheduling flexibility.

## Overview

The KETOTEK KT3100 Digital Thermostat Plug offers professional-grade temperature control with ±1℃ accuracy, supporting both heating and cooling devices up to 13A/230V. Featuring a 3-meter sensor probe, multiple timer modes, and memory retention, it’s ideal for greenhouses, fermentation, refrigeration, and more—delivering reliable, automated climate management in a durable, plug-and-play design.

## Description

KETOTEK Digital Thermostat Plug Socket Temperature Controller 220V with Sensor Probe, Thermostatic Plug Heating Cooling for Greenhouse Freezer Refrigerator Fermentation

## Features

- 【Plug-and-play design, easy to use.】 Simply plug in your heating/cooling device, set your desired start and stop temperatures, and let the KETOTEK thermostat plug do the rest. This thermostat plug automatically switches between heating and cooling modes based on your settings and control the device to work. Power supply: 100~250V AC; Output:Max 13A/230V.
- 【Temperature control function with ±1℃ control accuracy.】 Wide temperature range: -40℃ to 120℃ (-40℉ to 248℉) with control accuracy of ±1℃/±2℉. Just set Start Temperature and Stop Temperature, then enjoy automated temperature control without complex wiring. For heating mode, set Start Temperature  Stop Temperature.
- 【Timing function】 This thermostat plug outlet also has F01~F04 modes for cycle timing and countdown: F01 Cycle Timer mode; F02 CD ON mode, F03 CD OFF mode, F04 CD ON and CD OFF mode. You can choose F01 mode to auto-cycle the device ON/OFF at set intervals, or choose F02~F04 modes to set countdown for device ON/OFF. Set range: 0~99 hours 59 minutes. Please note that temperature control function and timing function cannot be used at the same time.
- 【Versatile function】 This temperature controller outlet plug is equipped with a 3-meter NTC 10K temperature sensor for rapid response, preventing temperature drift. It works in both Fahrenheit and Celsius. The built-in memory function retains the settings in case of power outage. This thermostat plug supports temperature calibration for ultra-precise adjustments. And it has a reset function, ensuring a fresh start whenever needed.
- 【Wide Range of Application】 Made in fire-resistant and durable materials for long-term stable operation, this temperature controller plug is suitable for various applications requiring precise temperature control and management, such as greenhouse, reptile, incubator, terrarium, freezer, refrigerator, heater, fermentation, heat mat, and other temperature-controlled system.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | KETOTEK |
| Model Number | KT3100 |
| Colour | White-kt3100 |
| Package Dimensions | 14.8 x 8.5 x 6.6 cm; 200 g |
| Power / Wattage | 6.877E+4 |
| Voltage | 230 Volts |
| Special Features | Temperature Calibration, Data Storage, Multiple Operation Modes |
| Item Weight | 200 g |

## Product Details

- **Brand:** KETOTEK
- **Model name:** Digital Thermostat
- **Product dimensions:** 3.9D x 5.8W x 12H centimetres
- **Controller type:** Hand Control
- **Special feature:** Temperature Calibration, Data Storage, Multiple Operation Modes
- **Colour:** White-kt3100
- **Specific uses for product:** Temperature
- **Temperature Control Type:** Heating, Cooling
- **Connectivity technology:** Wired
- **Included components:** 3m NTC 10K temperature sensor probe, Large LCD display

## Images

![KETOTEK Digital Thermostat Plug Socket Temperature Controller 220V with Sensor Probe, Thermostatic Plug Heating Cooling for Greenhouse Freezer Refrigerator Fermentation - Image 1](https://m.media-amazon.com/images/I/51nDZaDzW+L.jpg)

## Available Options

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

## Questions & Answers

**Q: Does the temp sensor need to be in the ground or can it detect air temp too?**
A: This detects Air temperature only. I don’t think it was designed to go in the ground.

**Q: Does this item have a battery back up. So should we get a power cut, when the power is back on, will it still remember the programmes entered.**
A: All parameters set can be saved after power off, so you don't need to program again after powering on.

**Q: To be clear, can this be used for operating a fan for cooling only**
A: It can be used to turn on and off any equipment that is plugged into it via the thermostat that is on the end of the lead.  So for example if you set it to  switch on a cooling fan until a reduced temperature is met, then it will do that.  I used to to turn on a heater until a higher temp was reached.  It is possible to do both things

**Q: Set temperature start / stop.  but the fan blower of the heater doesn't stop when the heater reached the stop set temperture.**
A: Mine was faulty too, I sent it back and baught a different one

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great temperature controller but confusing other functions
*by J***D on 16 October 2024*

I use this device to control a heated bench in my greenhouse, it works well, is accurate and is (putting aside the poor instructions) reasonably easy to set up.It is a multi function device and also has the ability to operate as a timer and a controller for a cooling device as well.Do not however get mislead by the statement on the web page that it will automatically switch from heating to cooling.As there is only one socket on the device you can only control a heater or a cooler/fan not both. If you want to control both you need a device like the Rainbird which has two power sockets, one for heating and one for cooling.With this limitation it is a good device and much cheaper than the Rainbird controller. Bye the way the Rainbird is a good device, mine lasted over 6 years before it failed and I bought this KETOTEK to replace it.

### ⭐⭐⭐⭐⭐ Great at its job
*by E***D on 11 February 2024*

I have had this in use for over a year now.It is great at turning the power on and off according to the temperature paramatres you assign.I have set it up, running through a seperate timer socket. The timer socket controls which times of the day it comes on, and during those times the temperature control socket then functions and tells my radiators when to come on and go off.As for how it works, its quite simple (at least the way I am using it). I set a minimum temperature and a maximum temperature I wish the room to reach. When the temperature hits the maximum, it switches off power to the socket and when it hits the minimum temperature it turns the power back on. This is controlled by the temperature probe.This is the only weakness of the device, as the cable is thin and I could see it breaking if you move it around a lot or place it so the wire is kinked. You would be best to consider where in your room would be the best place to monitor the temperature, place the probe and then avoid moving it. This has worked well for me, and as I said it has been in use for over a year now. I occasionally change the temperature settings, but other than that it and the timer plug have just been left to do their jobs with no issues.All in all it has proved to be a good purchase, and at least in my own case has been very reliable.

### ⭐⭐⭐⭐ Thermostat
*by R***S on 8 May 2025*

Does exactly what it should . I found it easy to set up . Used it on 2 occasions for keeping workshop at regular temp while resin cured

## Frequently Bought Together

- KETOTEK Digital Thermostat Plug Socket Temperature Controller 220V with Sensor Probe, Thermostatic Plug Heating Cooling for Greenhouse Freezer Refrigerator Fermentation
- LightHouse ECOH-135 915mm 135W Eco Heat Greenhouse Heater, Green,black

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-20*