--- product_id: 289939890 title: "2 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: "€ 30.21" currency: EUR in_stock: true reviews_count: 8 category: "Weewooday" url: https://www.desertcart.at/products/289939890-2-pieces-12v-electronic-temperature-controller-programmable-50-to-110 store_origin: AT region: Austria --- # Waterproof NTC sensor probe Fast 0.5s refresh rate Precise temp control ±0.1°C 2 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:** € 30.21 **Availability:** ✅ In Stock ## Summary > 🌡️ Stay cool or heat smart — control your climate like a pro! ## Quick Answers - **What is this?** 2 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?** € 30.21 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/289939890-2-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 - • **Dual-Color LED Display:** Instantly see set vs. actual temps in vibrant red & blue for seamless heating/cooling monitoring. - • **Waterproof Sensor Probe:** Durable NTC probe with 1ft cable, perfect for indoor/outdoor or aquatic setups without worry. - • **Compact & Reliable Design:** Small footprint (1.89” x 1.14” x 1.26”) with tested consistency ensures dependable performance in any industrial or home application. - • **Ultra-Precise Temperature Control:** Maintain your environment within 0.1°C accuracy—because every degree counts in smart automation. - • **Versatile Heating & Cooling Modes:** Easily programmable for both heating and cooling with customizable differential settings to fit your exact needs. ## Overview This 2-pack 12V electronic temperature controllers offer programmable heating and cooling with a wide range from -50°C to 110°C. Featuring a dual-color LED display for real-time temperature monitoring, a waterproof NTC sensor probe, and ultra-precise control with 0.1°C accuracy and 0.5-second refresh rate, these compact modules are ideal for smart home, industrial, aquarium, and automotive applications. ## Description 2 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: desertcart.com: Industrial & Scientific Review: Hope it last till end of freeze here - Works well and the temperature is right on. The instructions for setting up are, as many have already reported, confusing and very frustrating to say the least. On pointer is there is not a way to set "on and off" temps. You must set H/C, my case H then off temp for Heat ( off at 50F) then set the differential at 15 if you want the heat to come on at 35F, so my battery heat pad come on at 35f and goes off at 50F. setting up for C would be the reverse I assume. Review: Works just as it should , but ... - I've only just received it and did a basic test and as I said in the title , it works fine. However , the controller is the only thing you get. No paper or manual explaining anything is included. Which ok , to be fair that's not surprising though as it is just a temperature controlled relay. Problem is , the controller's relay is set to NO (or at least the one I got was) or cooling if you prefer , so the voltage isn't passed thru until it hits the temp you've set it to , which unfortunately , is the exactly opposite of what I wanted. In the end I had to look up the circuit's model number (ZFX-2062C) to find out how to change the settings , and found another page that had the settings P0-P8 and how to get to them. ** Hold the set button for 5 sec to get to the settings , Then press both the SET and C/F buttons at the same time to be able to change the setting you are currently on , then SET or C/F to actually change the setting. ** P0 is the one you want to change to set the Relay from NO to NC (from cooling to heating). Would be nice if they had the settings info and how to get to them on the desertcart product page. ## 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08W2BYG2L | | Best Sellers Rank | #20,933 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Temperature Controllers | | Brand Name | Weewooday | | Color | multicolored | | Customer Reviews | 4.1 4.1 out of 5 stars (589) | | Display Type | LED | | Item Dimensions L x W x H | 1.89"L x 1.14"W x 1.26"H | | Item Weight | 0.14 Pounds | | Manufacturer | Weewooday | | Material Type | Plastic | | Operating Temperature | 110 Degrees Celsius | | Unit Count | 2.0 Count | | Voltage | 12 Volts | ## Product Details - **Brand:** Weewooday - **Color:** multicolored - **Material:** Plastic - **Product Dimensions:** 1.89"L x 1.14"W x 1.26"H - **Voltage:** 12 Volts ## Images ![2 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/71EeQDhOG8L.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 ### ⭐⭐⭐⭐⭐ Hope it last till end of freeze here *by J***R on March 27, 2026* Works well and the temperature is right on. The instructions for setting up are, as many have already reported, confusing and very frustrating to say the least. On pointer is there is not a way to set "on and off" temps. You must set H/C, my case H then off temp for Heat ( off at 50F) then set the differential at 15 if you want the heat to come on at 35F, so my battery heat pad come on at 35f and goes off at 50F. setting up for C would be the reverse I assume. ### ⭐⭐⭐⭐ Works just as it should , but ... *by C***P on April 13, 2024* I've only just received it and did a basic test and as I said in the title , it works fine. However , the controller is the only thing you get. No paper or manual explaining anything is included. Which ok , to be fair that's not surprising though as it is just a temperature controlled relay. Problem is , the controller's relay is set to NO (or at least the one I got was) or cooling if you prefer , so the voltage isn't passed thru until it hits the temp you've set it to , which unfortunately , is the exactly opposite of what I wanted. In the end I had to look up the circuit's model number (ZFX-2062C) to find out how to change the settings , and found another page that had the settings P0-P8 and how to get to them. ** Hold the set button for 5 sec to get to the settings , Then press both the SET and C/F buttons at the same time to be able to change the setting you are currently on , then SET or C/F to actually change the setting. ** P0 is the one you want to change to set the Relay from NO to NC (from cooling to heating). Would be nice if they had the settings info and how to get to them on the amazon product page. ### ⭐⭐⭐⭐⭐ 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 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. ## Frequently Bought Together - 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 (2 Pieces) - Wathai IP67 Waterproof 80mm x 25mm 12V Cooling DC Fan for RV Fridge Exhaust Ventilation Dual Ball High Speed DIY Cooler 12 v Fans 2 Pack - Wathai 120mm x 25mm 12V Computer Case Cooling Fan 12 Volt 2Pin High High Performance DC Fan 2 Pack --- ## 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/289939890-2-pieces-12v-electronic-temperature-controller-programmable-50-to-110](https://www.desertcart.at/products/289939890-2-pieces-12v-electronic-temperature-controller-programmable-50-to-110) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-04-23*