--- product_id: 17191216 title: "DC 12V Fahrenheit Digital Temperature Controller 10A" brand: "bayite" price: "€ 42.63" currency: EUR in_stock: true reviews_count: 10 category: "Bayite" url: https://www.desertcart.be/products/17191216-dc-12v-fahrenheit-digital-temperature-controller-10a store_origin: BE region: Belgium --- # Compressor delay protection 10A max relay output Wide -4 to 230°F range DC 12V Fahrenheit Digital Temperature Controller 10A **Brand:** bayite **Price:** € 42.63 **Availability:** ✅ In Stock ## Summary > 🌡️ Take control of your environment—because your gear deserves precision. ## Quick Answers - **What is this?** DC 12V Fahrenheit Digital Temperature Controller 10A by bayite - **How much does it cost?** € 42.63 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/17191216-dc-12v-fahrenheit-digital-temperature-controller-10a) ## Best For - bayite enthusiasts ## Why This Product - Trusted bayite brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Safety Alarms:** High/low temp alerts and compressor delay protect your gear and peace of mind. - • **Dual Mode Flexibility:** Seamlessly switch between heating and refrigeration modes to suit any device. - • **Plug & Play Simplicity:** Easy setup with a 3m waterproof NTC 10K sensor—no tech headaches, just results. - • **Robust 10A Relay Output:** Handles up to 1100W load, powering your equipment without breaking a sweat. - • **Precision Temperature Control:** Set your ideal climate with ±1°F accuracy for perfect cooling or heating. ## Overview The bayite DC 12V Fahrenheit Digital Temperature Controller is a compact, reliable device designed for precise temperature regulation from -4°F to 230°F. Featuring a 10A relay output capable of handling up to 1100W, it supports both heating and cooling modes with built-in safety alarms and compressor delay protection. Equipped with a 3-meter waterproof NTC 10K sensor, it offers easy installation and user-friendly programming, making it ideal for applications like coolers, aquariums, and custom temperature-sensitive setups. ## Description bayite DC 12V Fahrenheit Digital Temperature Controller 10A | 1 Relay, with NTC 10K Sensor: desertcart.com: Industrial & Scientific Review: Works for radiator fans. - This thing is exactly what I was hoping it was. I installed it as a cooling fan thermostat for my pickup. Of course, the internal relay shouldn't be loaded with an 80 watt fan, so I needed an additional relay to set everything up correctly. It reads down to tenths of a degree. The lead for the temperature probe that came with it was plenty long enough to run from inside the cab on the driver's side to the opposite side of the radiator. I wired it up as a ground side switch to reduce wire counts on long runs. I've probably used 5 "automotive" adjustable electric thermostats in as many years, one of each brand I could find. This setup has so far outlasted 3 of them. Doesn't seem to be as sensitive to voltage fluctuations, has a digital readout, and cost less than $20. Of course, this isn't meant to run an automotive cooling fan, and doesn't have an input for the A/C fan like the others do, and requires more complex wiring. Anyways, can be set to run a heater (on when cold, off when hot), a cooler (on when hot, off when cold) adjustable delta T, adjustable trigger temperature (whole degrees), and a warning for too hot/cold (flashing display, no sound). Also, it retains settings when disconnected from power. Update: 6-15-18 Still going strong, and I’ve had absolutely 0 problems. Works much better than everything else I’ve tried, and I only have it zip tied to the bottom side of the dash. Plenty enough vibration resistance. Review: Easy to wire, easy (sort of) to program - This is exactly as described and worked perfectly the very first time I wired it up. Use case: I had a car audio amplifier under my rear hatch floorboard powering a subwoofer, I think it had far too many overheating cut-outs until it gave up. I replaced that with a larger amp to now power TWO subwoofers, one remained under the floor and the other is in the open area in the back. I installed a 12vdc brushless fan to blow on the underside of the amp, and when I first got everything running, I noticed the fan is a LOT louder than I had hoped, so I bought this temperature switch. I wired it up so that the power to the fan instead went to the temp switch, then the unit's switched leads supplied the (+) 12vdc to the fan. I changed the settings for this video to show what happens when setting "d" is at 2°F and the target temperature is 73°F ... The amp's temp slowly crept up to [Target]+[d] and the fan kicked on and I watched the temp drop to 72.8°F before the fan kicked off. I then let it cycle through one more time to 75°F, fan kicked on, temp continued to creep up to 75.2°F before starting to fall back down, to 72.8°F and fan turned off. That was proof enough that this thing does exactly what I intend, and I now have it set to kick on at 100°F and run until the temp probe reaches 94.9°F (target = 95° and d = 5). The only complaint I have is that the programming is a little convoluted. I did not explore any settings beyond Target, d, and mode = C (for cooling, opposite of H which is designed to switch on a heater to get temps up when the probe gets too cold). I will update this if the unit fails within the first year of use. ## Features - Simplified Design---Easy to set. Support °F display. NTC 10K Sensor Probe. - One Relay Output---Switch between heating mode and refrigeration mode according to the device you plug into the controller. Maximum output load: 1100W(110V) - Safe Protection---High and low temperature alarms are available when the temperature overshoots your desired temperature. Compressor delay protection time setting and Temperature calibration - Warranty---1 year warranty. - Package contents: A DC 12V temperature controller , comes with a 3m(9.8ft) waterproof probe sensor (Measure range is -4 ~ 230°F), and a user manual. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B011VGAPOC | | Best Sellers Rank | #43,146 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #46 in Temperature Controllers | | Brand | bayite | | Brand Name | bayite | | Color | black,red | | Customer Reviews | 4.5 out of 5 stars 449 Reviews | | Display Type | Digital | | Item Dimensions L x W x H | 3.4"L x 3"W x 1.4"H | | Item Weight | 4.96 ounces | | Model | CECOMINOD034943 | | Number of Items | 1 | | Operating Temperature | 230 °F | | Part Number | BAYITE-TCF-3A035 | | Product Dimensions | 3.4"L x 3"W x 1.4"H | | Unit Count | 1 Count | | Voltage | 12 volts | ## Product Details - **Brand:** bayite - **Color:** black,red - **Material:** Plastic - **Product Dimensions:** 3.4"L x 3"W x 1.4"H - **Voltage:** 12 volts ## Images ![DC 12V Fahrenheit Digital Temperature Controller 10A - Image 1](https://m.media-amazon.com/images/I/51VsoXIyTnL.jpg) ## Questions & Answers **Q: Can the sensor be submerged in a water tank to read water temperature?** A: I sealed the sensor at the end of the wire inside a 4-inch length of heat-shrink tubing and sealed the ends with silicone. I use mine to turn a heating element on/off during the winter to keep a small livestock water tank from freezing. **Q: can the sensor wires be lengthened** A: Simple answers: It uses an 10K NTC sensor that can be lengthened up to 100 feet with 18 gauge (AWG) SHIELDED wire. Up to 10 feet non-shielded. **Q: Can you turn it on and off?** A: Yes. You can turn it on and off. Press the button "Rst" to turn it on/off. **Q: How do I switch between cold and hot mode** A: Just change the HC value. HC=H for Heating Mode. HC=C for Cooling Mode 1.Press SET for 3 secs, HC appears on screen, release SET button 2.Press SET once to enter HC parameter 3.Press UP/DOWN button to select C or H, Press SET once again and back to HC(main menu) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works for radiator fans. *by R***4 on June 4, 2016* This thing is exactly what I was hoping it was. I installed it as a cooling fan thermostat for my pickup. Of course, the internal relay shouldn't be loaded with an 80 watt fan, so I needed an additional relay to set everything up correctly. It reads down to tenths of a degree. The lead for the temperature probe that came with it was plenty long enough to run from inside the cab on the driver's side to the opposite side of the radiator. I wired it up as a ground side switch to reduce wire counts on long runs. I've probably used 5 "automotive" adjustable electric thermostats in as many years, one of each brand I could find. This setup has so far outlasted 3 of them. Doesn't seem to be as sensitive to voltage fluctuations, has a digital readout, and cost less than $20. Of course, this isn't meant to run an automotive cooling fan, and doesn't have an input for the A/C fan like the others do, and requires more complex wiring. Anyways, can be set to run a heater (on when cold, off when hot), a cooler (on when hot, off when cold) adjustable delta T, adjustable trigger temperature (whole degrees), and a warning for too hot/cold (flashing display, no sound). Also, it retains settings when disconnected from power. Update: 6-15-18 Still going strong, and I’ve had absolutely 0 problems. Works much better than everything else I’ve tried, and I only have it zip tied to the bottom side of the dash. Plenty enough vibration resistance. ### ⭐⭐⭐⭐⭐ Easy to wire, easy (sort of) to program *by F***E on October 25, 2023* This is exactly as described and worked perfectly the very first time I wired it up. Use case: I had a car audio amplifier under my rear hatch floorboard powering a subwoofer, I think it had far too many overheating cut-outs until it gave up. I replaced that with a larger amp to now power TWO subwoofers, one remained under the floor and the other is in the open area in the back. I installed a 12vdc brushless fan to blow on the underside of the amp, and when I first got everything running, I noticed the fan is a LOT louder than I had hoped, so I bought this temperature switch. I wired it up so that the power to the fan instead went to the temp switch, then the unit's switched leads supplied the (+) 12vdc to the fan. I changed the settings for this video to show what happens when setting "d" is at 2°F and the target temperature is 73°F ... The amp's temp slowly crept up to [Target]+[d] and the fan kicked on and I watched the temp drop to 72.8°F before the fan kicked off. I then let it cycle through one more time to 75°F, fan kicked on, temp continued to creep up to 75.2°F before starting to fall back down, to 72.8°F and fan turned off. That was proof enough that this thing does exactly what I intend, and I now have it set to kick on at 100°F and run until the temp probe reaches 94.9°F (target = 95° and d = 5). The only complaint I have is that the programming is a little convoluted. I did not explore any settings beyond Target, d, and mode = C (for cooling, opposite of H which is designed to switch on a heater to get temps up when the probe gets too cold). I will update this if the unit fails within the first year of use. ### ⭐⭐⭐⭐ Impressive Thermostat Operation - Looks Good Too - Bargain Value *by J***O on March 28, 2018* I installed this bayite thermostat in a solar project I’m building to control a cooling fan behind my solar controller. Knowing this controller board will reside in my shed where it can get hot I knew I wanted a fan to blow cooler air on the Prostar 30 that is the heart of my system. I programmed my thermostat to switch my fan on at 78 degrees with the temperature rising, and turn it off when the temp drops below 78. This unit appears to be well built, and easy to program. Two improvements I would recommend to the manufacturer; (1) make the depth shallower even if that means making it wider. As it is now it’s about 3 inches deep which made it more difficult to use on my board. (2) make the bezel lip around the face of the thermostat a little wider. The tolerance in measurements between the face and the body of the unit are so small it makes it more difficult to cutout an opening for mounting. Even with these minor issues I would buy it again unless I could find the same item with less of a depth requirement. Recommend. ## Frequently Bought Together - bayite DC 12V Fahrenheit Digital Temperature Controller 10A 1 Relay with NTC 10K Sensor - irhapsody 4-PIN 40/30AMP 12V DC Waterproof Relay with Harness - Heavy Duty 12 AWG Tinned Copper Wires, 1 Pack SPST Automotive Relay - Blue Sea Systems DualBus 100A Common BusBars --- ## 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.be/products/17191216-dc-12v-fahrenheit-digital-temperature-controller-10a](https://www.desertcart.be/products/17191216-dc-12v-fahrenheit-digital-temperature-controller-10a) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-08-31*