--- product_id: 267823632 title: "2pcs W1209 12V DC Digital Temperature Controller Board Micro Digital Thermostat -50-110℃ Electronic Temperature Temp Control Module Switch with 10A One-Channel Relay and Waterproof, Without" brand: "hiletgo" price: "€ 17.42" currency: EUR in_stock: true reviews_count: 7 category: "Hi Letgo" url: https://www.desertcart.hr/products/267823632-2pcs-w1209-12v-dc-digital-temperature-controller-board-micro-digital store_origin: HR region: Croatia --- # 10A high-power relay output Built-in EEPROM memory ±0.1°C precision control 2pcs W1209 12V DC Digital Temperature Controller Board Micro Digital Thermostat -50-110℃ Electronic Temperature Temp Control Module Switch with 10A One-Channel Relay and Waterproof, Without **Brand:** hiletgo **Price:** € 17.42 **Availability:** ✅ In Stock ## Summary > 🌡️ Take control with precision — because your environment deserves the best! ## Quick Answers - **What is this?** 2pcs W1209 12V DC Digital Temperature Controller Board Micro Digital Thermostat -50-110℃ Electronic Temperature Temp Control Module Switch with 10A One-Channel Relay and Waterproof, Without by hiletgo - **How much does it cost?** € 17.42 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/267823632-2pcs-w1209-12v-dc-digital-temperature-controller-board-micro-digital) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Memory Retention:** Never lose your settings thanks to embedded EEPROM memory. - • **Robust 10A Relay Output:** Power up high-load devices confidently without compromise. - • **Rapid Response & Stability:** 0.5s refresh rate ensures instant, reliable temperature adjustments. - • **Pinpoint Temperature Accuracy:** Maintain your environment within 0.1°C for flawless control. - • **User-Friendly Digital Interface:** Intuitive LED display and easy menu navigation for seamless setup. ## Overview The HiLetgo W1209 Digital Temperature Controller is a compact, dual-pack thermostat module designed for precise temperature regulation from -50°C to 110°C. Featuring a high-accuracy 0.1°C control, a durable 10A relay for high-power loads, and smart EEPROM memory to retain settings after power loss, it offers rapid 0.5-second refresh rates and a user-friendly LED interface. Ideal for aquarium, pet, or industrial temperature management, this waterproof sensor-equipped controller ensures stable, consistent performance in demanding environments. ## Description Specifications: Model: W1209 Dimensions: 48.5 * 40mm Temperature Control mode: ON / OFF Temperature Range :-50 - 110 degree centigrade Resolution: When temperature is 0.1 degree, the resolution is -9.9~99.9, other temperature segment is 1 degree. Control Accuracy: 0.1 degree Hysteresis Accuracy: 0.1 degree Refresh Rate: 0.5s High Temperature Protection 0 - 110 degree centigrade Supply Voltage: DC 12V Static Current: Less than 35MA, attract current less than 65MA Output Voltage: DC 12V Output Power: 20A relay Measurement Input: NTC (10K 0.5%) Waterproof Sensor Environmental Requirements: -10 - 60 degree centigrade; Humidity 20% - 85% Instructions for use: Connect the power supply and equipment, the measuring temperature is displayed, press the "SET" button, press " + or - " to set the desired temperature (long press " + or - " to quickly increase or decrease), press "SET" to confirm the setting and return, controller automatically performs the relay ON/OFF. the thermostat output is 10A relay, meet a variety of high-power loads. LED Indicator: LED off indicates the relay off; Lighting, indicates the relay is closed. Digital LED Tubes: "LL" indicates sensor open, "HH" indicates overrange, the relay will be forcibly disconnected; "---" indicates high temperature alarm Long press the "SET" button to enter the main menu settings, press " + or - " to switching between P0-P6, then long press "SET" or 10 seconds without keystrokes to confirm the setting and return. Package Included: 2*W1209 12V DC Digital Temperature Controller Board Review: adjustable temperature - Good Review: Required to improve pin - Need increase the pin size to connect ## Features - 100% complete machine patch, wave soldering, stable performance, good consistency. - Embedded CPU chip (MCU), more intelligent, lower power consumption. - Automatic power set memory (MCU built-in EEPROM memory unit). - Control accuracy of 0.1 degrees Celsius. Have been tested for stability, consistency and reliability. - Tips: - long press set to get menu, starts at P0 - press +/- to get next P-parameter - press set to choose that parameter - press +/- to select the value you want for that parameter - press set to accept it - long press +/- = reset to default - power-out does reset to default - default temp set is 34.5C ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07CH7W3XP | | Brand | HiLetgo | | Brand Name | HiLetgo | | Color | Green | | Colour | Green | | Customer Reviews | 4.4 out of 5 stars 511 Reviews | | Display Type | LED | | Display type | LED | | Item Dimensions L x W x H | 49L x 49W x 49H millimeters | | Manufacturer | HiLetgo | | Material | Plastic | | Material Type | Plastic | | Model | No Case | | Part Number | 3-01-0874 | | Product dimensions | 49L x 49W x 49H millimeters | | Unit Count | 2 Count | | Voltage | 12 Volts | ## Product Details - **Brand:** HiLetgo - **Colour:** Green - **Material:** Plastic - **Product dimensions:** 48L x 40W x 14H millimeters - **Voltage:** 12 Volts ## Images ![2pcs W1209 12V DC Digital Temperature Controller Board Micro Digital Thermostat -50-110℃ Electronic Temperature Temp Control Module Switch with 10A One-Channel Relay and Waterproof, Without - Image 1](https://m.media-amazon.com/images/I/71DLrkx-nML.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ adjustable temperature *by S***M on 8 December 2024* Good ### ⭐⭐ Required to improve pin *by M***R on 23 July 2023* Need increase the pin size to connect ### ⭐⭐⭐⭐⭐ Llegó bien. Funciona perfectamente. Excelente relación calidad/precio. *by A***O on 13 November 2022* Control de temperatura de un Inversor Vcc/Vac. ## Frequently Bought Together - HiLetgo 2pcs W1209 12V DC Digital Temperature Controller Board Micro Digital Thermostat -50-110°C Electronic Temperature Temp Control Module Switch with 10A One-Channel Relay and Waterproof - KEYFANCLUB 2-Pack 120mm Fan DC 12V Computer Fan 120mm x120mm x 25mm 2-Pin High Performance Cooling Fan --- ## 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.hr/products/267823632-2pcs-w1209-12v-dc-digital-temperature-controller-board-micro-digital](https://www.desertcart.hr/products/267823632-2pcs-w1209-12v-dc-digital-temperature-controller-board-micro-digital) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-28*