---
product_id: 298747273
title: "KT4000"
brand: "ketotek"
price: "RM408"
currency: MYR
in_stock: null
reviews_count: 13
category: "Ketotek"
url: https://www.desertcart.com.my/products/298747273-kt4000
store_origin: MY
region: Malaysia
---

# Max 10A dual relay output Waterproof 2m NTC sensor Precision -50℃ to 99℃ control KT4000

**Brand:** ketotek
**Price:** RM408
**Availability:** ❌ Out of Stock

## Summary

> 🌡️ Stay cool or heat up—master your environment effortlessly!

## Quick Answers

- **What is this?** KT4000 by ketotek
- **How much does it cost?** RM408 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/298747273-kt4000)

## 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

- • **Versatile Use Cases:** Ideal for aquariums, greenhouses, 3D printer enclosures, and more—control your world.
- • **Memory & Calibration:** Never lose your settings; calibrate for spot-on temperature accuracy every time.
- • **Reliable Safety First:** Fire-resistant build + buzzer alerts keep your environment secure 24/7.
- • **Plug-and-Play Simplicity:** Set up in seconds with an intuitive 3-button interface—no tech skills needed.
- • **Dual-Stage Precision Control:** Seamlessly switch between heating & cooling for perfect climate balance.

## Overview

The KETOTEK KT4000 is a robust digital thermostat plug featuring dual relay outputs for heating and cooling with a max 10A 220V capacity. It offers high-precision temperature control from -50℃ to 99℃ using a 2-meter waterproof NTC sensor. Designed for easy plug-and-play use, it includes safety features like fire-resistant materials and buzzer alarms, plus memory retention and calibration functions, making it perfect for aquariums, greenhouses, and temperature-sensitive setups.

## Description

KETOTEK Digital Temperature Controller Thermostat Plug Socket with Waterproof Sensor, 2-Stage Thermostatic Plug 220V Heating Cooling Temperature Switch for Aquarium Greenhouse Heater Fan : desertcart.co.uk: DIY & Tools

Review: Great solution for 3d printer enclosure - Really happy with this. Got this to monitor the temperature in a 3d printer enclosure. I have no knowledge of electronics so that was an easy plug and ply alternative and it works great.
Review: Great product - Bought 13 of these and looking to buy some more soon - works well and very convenient!

## Features

- Plug-and-play design, dual relay outputs for heating and cooling. The dual-stage function allows you to control heating devices, cooling devices or both if you need that, providing precise and automated temperature regulation. This temperature controller is suitable for aquarium, fish tank, greenhouse, and other scenarios requiring precise temperature control. Output power: max 10A 220Vac each.
- High-precision temperature control: The KT4000 temperature controller plug supports heating and cooling modes, and can automatically switch according to needs, making it suitable for various environments and usage scenarios. It provides high-precision temperature control, ranging from -50℃ to 99℃, ensuring temperature stability across various applications.
- Intuitive and user-friendly interface. Just using 3 buttons on this KT4000 thermostat plug to complete desired temperature setup and other parameters. It has cooling delay setting, which prevents your device from over cycling the compressor. The easy-to-read display can be sticked by velcro double-sided tapes on a prominent location, making it convenient for you to monitor the real-time temperature.
- Safe and reliable design. The fire-resistant and durable materials ensure long-term stable operation, providing safe and worry-free use. Built-in buzzer alarm function promptly alerts you to abnormal conditions, ensuring safe usage. This KT4000 thermostat plug uses a 2-meter high-precision and waterproof NTC temperature sensor to monitor environmental temperature in real-time, ensuring accurate and precise temperature control.
- More functions. The built-in memory function retains the settings in case of power outages, offering peace of mind and avoiding any potential disruptions to the temperature control system. This thermostat plug supports a temperature calibration function to ensure that the displayed temperature matches the actual temperature. The reset function allows users to swiftly restore factory settings with ease.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07G7415M7 |
| Batteries required | No |
| Best Sellers Rank | 17,807 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 23 in Temperature Controllers |
| Customer Reviews | 4.1 4.1 out of 5 stars (198) |
| Date First Available | 7 Aug. 2018 |
| Included components | [«2-meter waterproof temperature probe, suction cup, 2 velcro double-sided tapes»] |
| Item model number | KT4000 |
| Item weight | 0.72 Kilograms |
| Package Dimensions | 23.5 x 13.2 x 6 cm; 723 g |
| Specific uses | Aquarium, Temperature Sensitive Systems |

## Product Details

- **Brand:** KETOTEK
- **Colour:** Black
- **Connectivity technology:** Wired
- **Controller type:** Hand Control
- **Included components:** [«2-meter waterproof temperature probe, suction cup, 2 velcro double-sided tapes»]
- **Model name:** KT4000
- **Power source:** Corded Electric
- **Special feature:** Waterproof
- **Specific uses for product:** Aquarium, Temperature Sensitive Systems
- **Temperature Control Type:** Digital

## Images

![KT4000 - Image 1](https://m.media-amazon.com/images/I/51Sokd4L0jL.jpg)
![KT4000 - Image 2](https://m.media-amazon.com/images/I/71ekvABN9tL.jpg)
![KT4000 - Image 3](https://m.media-amazon.com/images/I/71Oxrxlr5YL.jpg)
![KT4000 - Image 4](https://m.media-amazon.com/images/I/71dGrzpCH7L.jpg)
![KT4000 - Image 5](https://m.media-amazon.com/images/I/71dNuryDw6L.jpg)

## Available Options

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

## Questions & Answers

**Q: Probably a daft question, but how do you set the current time on this?**
A: Press and hold "SET" for 3s, press "SET" several times until the lock icon flashes, press up or down key to set the hour, press "SET" again to set minute. Press and hold "SET" for 3s to save the settings.

**Q: I've lost my instructions is there anywhere I can download them?**
A: Please contact linjy@cnketotek.com for manual in PDF

**Q: I have a 80w deep heat bulb in but temp range only goes to 32 degrees  why is that?**
A: I assume you are saying the temperature achieved is only 32° , I had similar problem. First is the sensor close to the area the spot of the bulb is heating, if so ,as in my case your bulb is underpowered for the application and needs to be upgraded to a higher wattage. 
If the bulb is dimming at 32° then you either have it set wrong or it is faulty
If I have assumed wrong or misread the question please disregard this answer. I accept no liability for the health of your animal should you take any notice of what I have suggested.

**Q: for some reason the second plug makes my uvb flicker a lot and the first plug what's for heating allows the basking temp to go 5° more than it should?**
A: The flicking could be to do with the heat lamp stealing all the energy so the uvb could be getting less energy than it should. I had this problem before so now I have one light on one extension and another for the other. 
The temp rise is normal and will lower it's self automatically. Same with if it goes 5 degrees lower it will then heat itself back up. 

It took me a while to work it all out but now it does everything itself. I never have to touch it, it's amazing 😊

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great solution for 3d printer enclosure
*by F***. on 20 September 2025*

Really happy with this. Got this to monitor the temperature in a 3d printer enclosure. I have no knowledge of electronics so that was an easy plug and ply alternative and it works great.

### ⭐⭐⭐⭐⭐ Great product
*by A***R on 13 June 2025*

Bought 13 of these and looking to buy some more soon - works well and very convenient!

### ⭐⭐⭐⭐ it’s amazing but sometimes turns off when to hot but don’t worry you can fix in seconds
*by A***E on 28 January 2026*

It’s great perfect for my leopard gecko. it’s amazing easy to use :)

## Frequently Bought Together

- KETOTEK Digital Temperature Controller Thermostat Plug Socket with Waterproof Sensor, 2-Stage Thermostatic Plug 220V Heating Cooling Temperature Switch for Aquarium Greenhouse Heater Fan
- Arcadia Pro T5 UVB Kit 12% Desert

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-03-21*