--- product_id: 61490410 title: "HALJIA W1209 DC 12V -50 to +110'C Temperature Controller Control Switch Thermostat Thermometer Sensor Module" brand: "haljia" price: "0 zł" currency: PLN in_stock: false reviews_count: 4 url: https://www.desertcart.pl/products/61490410-haljia-w1209-dc-12v-50-to-110c-temperature-controller-control store_origin: PL region: Poland --- # DC 12V Power 0.5S Refresh Rate Temp Range -50 to +110°C HALJIA W1209 DC 12V -50 to +110'C Temperature Controller Control Switch Thermostat Thermometer Sensor Module **Brand:** haljia **Price:** 0 zł **Availability:** ❌ Out of Stock ## Summary > 🌟 Control Your Climate, Conquer Your Space! ## Quick Answers - **What is this?** HALJIA W1209 DC 12V -50 to +110'C Temperature Controller Control Switch Thermostat Thermometer Sensor Module by haljia - **How much does it cost?** 0 zł with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/61490410-haljia-w1209-dc-12v-50-to-110c-temperature-controller-control) ## Best For - haljia enthusiasts ## Why This Product - Trusted haljia brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Control:** Achieve pinpoint accuracy with 0.1°C control and hysteresis. - • **Waterproof Sensor:** Durable NTC sensor ensures accurate readings in any environment. - • **Robust Output Power:** Handle up to 10A relay output for reliable performance. - • **User-Friendly Display:** Easily monitor conditions with a clear 0.28-inch digital tube. - • **Versatile Temperature Range:** Perfect for diverse applications with a range from -50°C to +110°C. ## Overview The HALJIAW1209 is a high-performance temperature controller designed for precision and versatility. Operating on a DC 12V supply, it features a waterproof NTC sensor with a wide temperature range of -50°C to +110°C, ensuring accurate monitoring and control. With a refresh rate of 0.5 seconds and a user-friendly 0.28-inch digital display, this thermostat is perfect for both professional and personal applications. ## Description Specification: Supply voltage: DC 12V Static current: less than 5MA, attract current: less than 65MA Output voltage: DC 12V Output power: 10A relay Measurement input: NTC (10K 0.5%) Waterproof Sensor Environmental requirements: -10~60'C, Humidity 20%~85% Dimensions: 48 * 40mm Cable length: About 30 cm Temperature control mode: ON / OFF Temperature range: -50~+110'C Control accuracy: 0.1'C Hysteresis accuracy: 0.1'C Refresh rate: 0.5S High temperature protection: 0~110'C Resolution: When temperature is 0.1'C, the resolution is -9.9~99.9, other temperature segment is 1'C Display Type: 0.28-inch digital tube 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. Package Included: 1 x -50-110'C W1209 Digital thermostat Temperature Control Switch 12V + sensor. ## Features - Supply voltage: DC 12V, Output voltage: DC 12V, Output power: 10A relay - Measurement input: NTC (10K 0.5%) Waterproof Sensor, Temperature control mode: ON / OFF, Temperature range: -50~+110'C - Control accuracy: 0.1'C, Hysteresis accuracy: 0.1'C, Refresh rate: 0.5S, High temperature protection: 0~110'C - Resolution: When temperature is 0.1'C, the resolution is -9.9~99.9, other temperature segment is 1'C - Display Type: 0.28-inch digital tube ## Product Details - **Colour:** green - **Brand:** HALJIA - **Voltage:** 12 Volts - **Item weight:** 0.03 Kilograms - **Display type:** 0.28-inch digital tube ## Images ![HALJIA W1209 DC 12V -50 to +110'C Temperature Controller Control Switch Thermostat Thermometer Sensor Module - Image 1](https://m.media-amazon.com/images/I/71KY+qoLdeL.jpg) ![HALJIA W1209 DC 12V -50 to +110'C Temperature Controller Control Switch Thermostat Thermometer Sensor Module - Image 2](https://m.media-amazon.com/images/I/71V4+Ok8HGL.jpg) ![HALJIA W1209 DC 12V -50 to +110'C Temperature Controller Control Switch Thermostat Thermometer Sensor Module - Image 3](https://m.media-amazon.com/images/I/51letHHODaL.jpg) ![HALJIA W1209 DC 12V -50 to +110'C Temperature Controller Control Switch Thermostat Thermometer Sensor Module - Image 4](https://m.media-amazon.com/images/I/61NqFQVnl0L.jpg) ![HALJIA W1209 DC 12V -50 to +110'C Temperature Controller Control Switch Thermostat Thermometer Sensor Module - Image 5](https://m.media-amazon.com/images/I/51YApftb4dL.jpg) ## Questions & Answers **Q: Will 5V work?** A: I would not think so. It's designed as a 12vdc module so the led display, relay among other components would not operate. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Did the job *by A***R on 4 March 2021* Used as a control for incubator, did the job. ### ⭐⭐⭐⭐⭐ perfect *by S***M on 20 September 2020* great ### ⭐ over complicated and does not work *by W***1 on 23 August 2019* followed all instructions i can't even set the temperature to begin with so this unit is total rubbish, i then got the next model up with the twin display works an absolute dream if this unit worked it would be good value. Chucked straight in the bin --- ## 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.pl/products/61490410-haljia-w1209-dc-12v-50-to-110c-temperature-controller-control](https://www.desertcart.pl/products/61490410-haljia-w1209-dc-12v-50-to-110c-temperature-controller-control) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-21*