---
product_id: 326338033
title: "4 Pieces 12V Electronic Temperature Controller Programmable -50 to 110 Degree Celsius Heating/Cooling Thermostat Control Switch Module Ntc Waterproof Sensor Probe Dual Color LED Display Monitor"
brand: "weewooday"
price: "15.43 OMR"
currency: OMR
in_stock: true
reviews_count: 6
url: https://www.desertcart.com.om/products/326338033-4-pieces-12v-electronic-temperature-controller-programmable-50-to-110
store_origin: OM
region: Oman
---

# Waterproof NTC probe 0.5s refresh rate ±0.1°C precision 4 Pieces 12V Electronic Temperature Controller Programmable -50 to 110 Degree Celsius Heating/Cooling Thermostat Control Switch Module Ntc Waterproof Sensor Probe Dual Color LED Display Monitor

**Brand:** weewooday
**Price:** 15.43 OMR
**Availability:** ✅ In Stock

## Summary

> 🌡️ Stay Cool or Heat Up with Precision — Control Your Climate Like a Pro!

## Quick Answers

- **What is this?** 4 Pieces 12V Electronic Temperature Controller Programmable -50 to 110 Degree Celsius Heating/Cooling Thermostat Control Switch Module Ntc Waterproof Sensor Probe Dual Color LED Display Monitor by weewooday
- **How much does it cost?** 15.43 OMR with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.om](https://www.desertcart.com.om/products/326338033-4-pieces-12v-electronic-temperature-controller-programmable-50-to-110)

## Best For

- weewooday enthusiasts

## Why This Product

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

## Key Features

- • **Precision Perfected:** Maintain exact temps with 0.1°C control accuracy—no guesswork, just perfect climate.
- • **Dual-Color LED Clarity:** Instantly see current vs. set temperature with vibrant red & blue display—stay in control at a glance.
- • **Rapid Response Refresh:** Updates every 0.5 seconds for real-time temperature monitoring—never miss a beat.
- • **Built to Brave the Elements:** Waterproof NTC sensor probe ensures reliable outdoor or indoor use without a hitch.
- • **Versatile Temperature Master:** From aquariums to smart home systems, this controller adapts seamlessly to your environment.

## Overview

This 4-piece 12V programmable temperature controller set offers ultra-precise temperature regulation from -50°C to 110°C with 0.1°C accuracy. Featuring a waterproof NTC sensor probe and dual-color LED display for simultaneous current and set temperature monitoring, it refreshes data every 0.5 seconds. Compact and reliable, it’s perfect for aquariums, smart homes, automotive, and industrial applications.

## Description

Full description not available

## Features

- What will receive: you will get enough amount of direct-current 12V temperature controllers, the measurement temperature is from -50 to 110℃(-58 to 230℉), the control and backlash precision: 0.1 Celsius, the refresh rate: 0.5 s, the module size: 48 x 29 x 32 mm/ 1.89 x 1.14 x 1.26 inch, the probe length: 1.5 inches, the cable probe length: 1 ft
- Dual color LED display: this digital thermostat control module of dual color LED display, which show the measured temperature (red) and set temperature (blue) at the same time, which can be applied for cooling/ heating mode, you can test indoor or outdoor temperature
- Waterproof design: the NTC (10K 0.5%) probe is waterproof, and you can control the temperature at will, can also control heating or cooling according to different needs
- Reliable to use: the electronic temperature control switch module has been tested for consistency and reliability, and its control accuracy is 0.1 degrees Celsius, backlash precision is 0.1 degrees Celsius with high temperature protection
- Wide application: the electronic thermostat can be widely applied in intelligent home and industrial equipment, suitable for household appliances, automatic irrigation, office machines, audio, automobiles, aquarium, fish tank etc.

## Product Details

- **Color:** multicolored
- **Brand:** Weewooday
- **Product Dimensions:** 4.53"L x 2.56"W x 1.77"H
- **Item Weight:** 0.28 Pounds
- **Display Type:** LED

## Images

![4 Pieces 12V Electronic Temperature Controller Programmable -50 to 110 Degree Celsius Heating/Cooling Thermostat Control Switch Module Ntc Waterproof Sensor Probe Dual Color LED Display Monitor - Image 1](https://m.media-amazon.com/images/I/71aLtgkJzpS.jpg)
![4 Pieces 12V Electronic Temperature Controller Programmable -50 to 110 Degree Celsius Heating/Cooling Thermostat Control Switch Module Ntc Waterproof Sensor Probe Dual Color LED Display Monitor - Image 2](https://m.media-amazon.com/images/I/718PBxNf1cS.jpg)
![4 Pieces 12V Electronic Temperature Controller Programmable -50 to 110 Degree Celsius Heating/Cooling Thermostat Control Switch Module Ntc Waterproof Sensor Probe Dual Color LED Display Monitor - Image 3](https://m.media-amazon.com/images/I/71c41gbix5L.jpg)
![4 Pieces 12V Electronic Temperature Controller Programmable -50 to 110 Degree Celsius Heating/Cooling Thermostat Control Switch Module Ntc Waterproof Sensor Probe Dual Color LED Display Monitor - Image 4](https://m.media-amazon.com/images/I/71ElAj8naPL.jpg)
![4 Pieces 12V Electronic Temperature Controller Programmable -50 to 110 Degree Celsius Heating/Cooling Thermostat Control Switch Module Ntc Waterproof Sensor Probe Dual Color LED Display Monitor - Image 5](https://m.media-amazon.com/images/I/71vCMogmNAS.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Questions & Answers

**Q: Mine is operating where if the temp goes above setpoint it turns on. how to wire it so it turns on when the temp falls below a level?**
A: Your controller is set to cooling mode, and you need to change it to heating mode. Check out the image on the review from "Oh cool you can change your display name". They kindly included the programming guide.

**Q: I want to use it just for monitoring ac vent temp, will it stay lit with display viewable any time?  Mount is in  ceiling out of reach.**
A: Yes it stays lit while Powered by an external Power supply.  However, it is really meant for controlling a temperature rather than just displaying the ambient.

**Q: What wire size fits into the connectors?**
A: Use what is called "bell" wire.  18 to 22 ga

**Q: What is the probe's ntc 10k b value?**
A: Yes it is

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    I N F O ... Y O U ... M U S T ...  K N O W ... B E F O R E ...  B U Y I N G
  

*by A***R on Reviewed in the United States on September 16, 2022*

I purchased the same controller from 2 different sources. On one order I received the old design and on the other order I received the new design. The one I bought from (DZS Elect) was the NEW design and  included an operating manual. It worked great for 3 days; but then failed and only showed LLL in the red digital display for the current temperature. I checked the probe and the wiring. The failure was internal in the controller.  The NEW design controller uses surface mount rectifiers on the pc board next to the relay. Do NOT buy the new design from (DZS Elect). I bough the other controller from (Xipshow) and the controller I received was the OLD design (which is much better than the new design). The old design uses redial lead rectifiers in the pc board next to the relay. but it does not come with the operating instructions. You can get that by going on line and looking up KETOTEK Model KTF0091. It's only one page. In almost every case you can use the factory settings for operation and only change from C° to F° if that is your choice. The important point is this ----- Buy from (Xipshow) and get the OLD design. It works great with no problems.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Works very well
  

*by J***O on Reviewed in the United States on February 21, 2024*

This thermostat is very basic but it works very well.  Mine didn't come with wiring directions but now they show the diagram on the product description on AMAZON (but it still isn't very clear).  One thing they don't explain is why there is a jumper between the ground inputs, as depicted on the top portion of the wiring diagram.  What I found is that if you attach a switch (on/off basic switch) between the negative input and negative jumper input (right next to it),  you can use that to keep the fan or heater element from turning on and still have the thermometer on and showing the temperature.  Why would you want this?  In my case, I don't want the fan or heater to turn on while I adjust the thermostat to the temperature I want it to turn on.  I can just look at the red dot on the thermostat to see if it turns on or off while not pushing power to the fan or heating element. This will also keep the fan or heater from turning on accidentally and running your batteries down.I have this installed in three different areas in my coach.1. Electricity bay to keep the inverter and other electronics cool.  It runs an exhaust fan.2. Battery bay to keep the lithium batteries at the appropriate operating temperature.  It runs an exhaust fan and heating element.3. Water bay to keep the water pump from freezing in the winter.  It runs a heating element.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Added to a car audio amp rack
  

*by C***N on Reviewed in the United States on May 21, 2023*

Great little temperature gauges. I installed this into a car audio amp rack. I wired up two 30mm fans to it. One to take in fresh air and cool off the amp, and one to pull the air out of the amp space. I chose this method because my amp is going to enclosed behind 3/4 plexiglass. The wiring was a little confusing at first, but after a second look i discovered that all 12v power wires (battery , and both fans ) go into connection 1 on the back. 12v ground from the battery goes into connection 2 on the back. A bridge wire is used to go from connection 2to connection 3 on the back and then both fans  negative (black wires ) go into connection 4 in the back. This allows the connection to be made and activate the fans when the set temperature is exceeded. I have included a video to show you the operation, i hope this helps anyone who purchases this product.I have noticed that my led lights on my enclosures and amp rack dim when the temperature is exceeded causing the fans to come on. I think this might be an issue on my end because i couldn’t get the 14 gauge wire i was using to connect to the distribution block (on the back of my amp rack) to go into the connections on the back of the temperature gauge so i spliced in some 20 gauge. I think this is causing the dimming.

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*Product available on Desertcart Oman*
*Store origin: OM*
*Last updated: 2026-02-14*