--- product_id: 77628951 title: "CentIoT - Digital Thermostat/Temperature/Thermo Controller Switch Module - Waterproof NTC Sensor (W1209 12V)" brand: "centiot" price: "€ 6.58" currency: EUR in_stock: true reviews_count: 9 category: "Cent Io T" url: https://www.desertcart.at/products/77628951-centiot-digital-thermostat-temperature-thermo-controller-switch-module-waterproof-ntc store_origin: AT region: Austria --- # 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:** € 6.58 **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?** € 6.58 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/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. ## Frequently Bought Together - CentIoT - Digital Thermostat/Temperature/Thermo Controller Switch Module - Waterproof NTC Sensor (W1209 12V) - Electronic Spices 12v Brushless 3Inch DC Cooling Fan for Pc Case,CPU Cooler, 2pcs, Black (80X80) mm - Electronic Spices Small 8025 3 Inch (80x80x25mm) Brushless 12v Dc Exhaust Cooling Fan Single Piece --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/77628951-centiot-digital-thermostat-temperature-thermo-controller-switch-module-waterproof-ntc](https://www.desertcart.at/products/77628951-centiot-digital-thermostat-temperature-thermo-controller-switch-module-waterproof-ntc) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-27*