---
product_id: 77628951
title: "CentIoT - Digital Thermostat/Temperature/Thermo Controller Switch Module - Waterproof NTC Sensor (W1209 12V)"
brand: "centiot"
price: "$13.79"
currency: USD
in_stock: true
reviews_count: 9
category: "Cent Io T"
url: https://www.desertcart.ec/products/77628951-centiot-digital-thermostat-temperature-thermo-controller-switch-module-waterproof-ntc
store_origin: EC
region: Ecuador
---

# 20A high-power relay output Waterproof NTC sensor included Temp range -50°C to 110°C CentIoT - Digital Thermostat/Temperature/Thermo Controller Switch Module - Waterproof NTC Sensor (W1209 12V)

**Brand:** centiot
**Price:** $13.79
**Availability:** ✅ In Stock

## Summary

> 🌟 Take control of your climate like a pro — precision meets power in one sleek module!

## Quick Answers

- **What is this?** CentIoT - Digital Thermostat/Temperature/Thermo Controller Switch Module - Waterproof NTC Sensor (W1209 12V) by centiot
- **How much does it cost?** $13.79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/77628951-centiot-digital-thermostat-temperature-thermo-controller-switch-module-waterproof-ntc)

## Best For

- centiot enthusiasts

## Why This Product

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

## Key Features

- • **Wide Operating Range:** From freezing -50°C to scorching 110°C, perfect for diverse industrial or DIY projects.
- • **High-Power Relay Output:** Supports up to 20A load, ideal for controlling heavy-duty devices with ease.
- • **Robust & Waterproof Sensor:** Durable NTC 10K sensor ensures reliable readings even in humid or wet conditions.
- • **Precision Temperature Control:** Maintain your environment with 0.1°C accuracy and 0.1°C hysteresis for flawless stability.
- • **Intuitive LED Display & Alerts:** Glowing display with clear LED indicators keeps you informed at a glance, preventing overheating or sensor faults.

## Overview

The CentIoT W1209 Digital Thermostat is a compact, 12V temperature controller featuring a waterproof NTC sensor, precise 0.1°C control accuracy, and a robust 20A relay output. Designed for professional and DIY applications, it offers a wide temperature range (-50°C to 110°C) and intuitive LED indicators for real-time monitoring and high-temperature protection.

## Description

How to use: connect the power supply and the load, you can supply to the controller, is displayed as a measured temperature, press the set button, the display flashes the temperature, press - to set the desired temperature, after setting press set to confirm return, the controller automatically performs the relay by setting off! Lights, led status descriptions: indicator: off the relay is switched off, always indicate the relay is closed. Led: shows ll is the sensor open, showing ?Hh is out of range, the thermostat will be forced to close the relay, the display --- as high temperature protection.

Review: Awesome product - I wanted just a device to display room temperature on my 12v diy cooler & checked other products of 500+(with probe) and those were normal black n white display. But this chipset has glowing display + metal probe, also accuracy is on mark. Very sarisfied with the product & recommend it if you want to use on a 12v project, else use any 12v adaptor.
Review: Good product but delivary cost is high - The product is good I have used it for Egg Incubator and its working good .

## Features

- Instruction Manual in the images section; Temperature range : -50-110 °, High temperature protection: 0-110°
- Temperature control mode: ON / OFF, Measurement input: NTC (10K 0.5%) Waterproof Sensor
- Resolution:When temperature is 0.1°, the resolution is -9.9~99.9, other temperature segment is 1°
- Control accuracy: 0.1 °, Hysteresis accuracy: 0.1°, Refresh rate: 0.5S
- Supply voltage: DC 12V, Static current: ≤ 35MA, attract current ≤ 65MA, Output voltage: DC 12V, Output power: 20A relay

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B071S59BTZ |
| Are batteries included? | No |
| Auto Focus Included | No |
| Best Sellers Rank | #69,182 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #383 in Temperature Controllers |
| Brand | CentIoT |
| Cooling type | Fan |
| Country of Origin | China |
| Customer Reviews | 4.0 4.0 out of 5 stars (202) |
| Date First Available | 14 May 2017 |
| Generic Name | Components |
| Importer | Contact@centiot.com | www.centiot.com/support |
| Included Components | W1209 |
| Item Dimensions LxWxH | 50 x 40 x 5 Millimeters |
| Item Height | 5 Millimeters |
| Item Weight | 23 g |
| Item Width | 40 Millimeters |
| Item model number | CT-W1209 |
| Manufacturer | Contact@centiot.com | www.centiot.com/support, SE148 |
| Model number | CT-W1209 |
| Number of Memory Sticks | 1 |
| Packer | Minanu Labs Private Limited, F6 Jayanthi Flats, Plot 42 42 43 3rd Street, Indira Nagar, Venba Avenue, Sithalapakkam, Chennai - 60012 |
| Power Source | Corded Electric |
| Product Dimensions | 5 x 4 x 0.5 cm; 23 g |
| Voltage | 12 Volts |

## Images

![CentIoT - Digital Thermostat/Temperature/Thermo Controller Switch Module - Waterproof NTC Sensor (W1209 12V) - Image 1](https://m.media-amazon.com/images/I/51AMjLbYM+L.jpg)

## Available Options

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

## Questions & Answers

**Q: what is tempreture range? Is it minus 50degree  to 110degree??**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome product
*by N***H on 9 April 2019*

I wanted just a device to display room temperature on my 12v diy cooler & checked other products of 500+(with probe) and those were normal black n white display. But this chipset has glowing display + metal probe, also accuracy is on mark. Very sarisfied with the product & recommend it if you want to use on a 12v project, else use any 12v adaptor.

### ⭐⭐⭐⭐ Good product but delivary cost is high
*by A***I on 15 June 2020*

The product is good I have used it for Egg Incubator and its working good .

### ⭐⭐⭐⭐⭐ Quality is good.
*by T***N on 11 July 2021*

I do not have any words 😂😅🙂 to explain. Amazing 😁🤩😂 product,value for 💰. You can trust this seller.

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-19*