--- product_id: 64622128 title: "Baxi 5114725 Duo-Tec Megalow Platinum Thermister NTC Temperature Sensor" brand: "witpoce" price: "S$12" currency: SGD in_stock: true reviews_count: 8 category: "Witpoce" url: https://www.desertcart.sg/products/64622128-baxi-5114725-duo-tec-megalow-platinum-thermister-ntc-temperature-sensor store_origin: SG region: Singapore --- # Measures 40-80°C range Surface mount for easy install Accurate ±1.5% temp sensing Baxi 5114725 Duo-Tec Megalow Platinum Thermister NTC Temperature Sensor **Brand:** witpoce **Price:** S$12 **Availability:** ✅ In Stock ## Summary > 🌡️ Upgrade your boiler’s brain — precision sensing for flawless warmth! ## Quick Answers - **What is this?** Baxi 5114725 Duo-Tec Megalow Platinum Thermister NTC Temperature Sensor by witpoce - **How much does it cost?** S$12 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/64622128-baxi-5114725-duo-tec-megalow-platinum-thermister-ntc-temperature-sensor) ## Best For - witpoce enthusiasts ## Why This Product - Trusted witpoce brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Wide Operating Range:** Reliable readings from 40°C to 80°C for versatile heating applications. - • **OEM Quality Assurance:** Genuine Baxi part ensures perfect compatibility and durability. - • **Effortless Installation:** Surface mount design lets you upgrade your system in minutes—no plumber needed. - • **Cost-Effective Boiler Fix:** Save on costly repairs with a quick, affordable sensor replacement. - • **Precision Temperature Control:** Maintain optimal boiler performance with ±1.5% accuracy. ## Overview The Baxi 5114725 Duo-Tec Megalow Platinum Thermister is a high-precision OEM temperature sensor designed for a wide range of Baxi boilers. Featuring ±1.5% measurement accuracy and a 40-80°C sensing range, this surface-mount sensor ensures reliable temperature monitoring and efficient heating system performance. Backed by a 1-year warranty, it offers an easy, cost-effective solution to maintain or restore your boiler’s optimal operation. ## Description This Thermister / Temperature Sensor is brand new, it is not used or reconditioned in any way. When buying from us you can be assured your comes with a 1 Year Warranty.This product Is an OEM After Market Part and all other companies selling this part on desertcart around this price will also be selling an OEM part. It appears most of these companies are not sharing this information with you their potential customer.This Thermister Is Suitable For The Following Boilers:Baxi Duo-Tec 24HeBaxi Duo-Tec 28HeBaxi Duo-Tec 33HeBaxi Duo-Tec 40HeBaxi Megaflo 24 He SystemBaxi Megaflo 28 He SystemBaxi Platinum 24 HeBaxi Platinum 28 HeBaxi Platinum 33 HeBaxi Platinum 40 He CombiBaxi Platinum System 24HeBaxi Megaflo 32HE Review: Works Perfectly - We have a fairly old combi boiler which has been mostly faultless over the years. Recently whilst showering, the water would start off hot and intermittently lose temperature, going freezing cold. After some research, the temperature stat on the hot water side seems to be the main cause so ordered this, particularly as it’s a cheap and easy thing to try. Fitting took a whole 10 mins and was very easy. The process I followed was… 1. Switch of boiler at mains. 2. Switch off mains water and run both hold and cold taps till the water stops. 3. Remove boiler panel. 4. Locate stat on 3 way valve and remove plug. 5. Use 13mm spanner to remove faulty stat. There is a metal washer which may be still attached to the valve so also remove. 6. Insert new stat making sure not to over tighten. I also used a very small amount of PTFE tape to ensure no leaks. 7. Re-attach plastic plug and replace boiler cover. 8. Ensure all taps are switched back to off. 9. Switch mains water and boiler back on. 10. Bleed air out of taps and run hot water. Hopefully your hot water comes back on and you are fault free. I am a certified electrician so was comfortable doing this repair. Please DO NOT attempt if you don’t fee competent to do so. I am in no way responsible if you follow my instructions and damage your boiler. It is a very quick and cheap fix and saved us from calling out a plumber. If it didn’t work and had the potential to be a larger problem, then we’d obviously call out a professional. Happy that it’s worked and saved us a lot of money. Review: Great price and worked well On Baxi Megaflow for supply temp probe - Worked well, fitted easily on Baxi Megaflow 28 HE (not Combi). Easy to fit, no need to shutoff water the supply temp probe has a well in the pipe so there is no water in there. ## Features - Please Ensure You Read - See More Product Details - To View All Boilers - This Thermister Fits ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01KY1MAIY | | Best Sellers Rank | 87,472 in DIY & Tools ( See Top 100 in DIY & Tools ) 688 in Central Heating System Accessories | | Brand | WITPOCE | | Country Of Origin | China | | Customer Reviews | 4.4 out of 5 stars 173 Reviews | | Lower Temperature Rating | 40 Degrees Celsius | | Lower temperature rating | 40 Degrees Celsius | | Manufacturer | Baxi | | Manufacturer Part Number | 5114725 | | Measurement Accuracy | ±1.5% | | Measurement accuracy | ±1.5% | | Measuring Range | 40 - 80 °C | | Measuring range | 40 - 80 °C | | Model Number | 5114725 | | Mounting Type | Surface Mount | | Mounting type | Surface Mount | | Number of Items | 1 | | Output Type | resistance | | Specific Uses For Product | heating systems, boilers | | Style | Modern | | Style Name | Modern | | Unit Count | 1.0 count | | Upper Temperature Rating | 80 Degrees Celsius | ## Product Details - **Brand:** WITPOCE - **Style:** Modern - **Lower temperature rating:** 40 Degrees Celsius - **Measurement accuracy:** ±1.5% - **Measuring range:** 40 - 80 °C ## Images ![Baxi 5114725 Duo-Tec Megalow Platinum Thermister NTC Temperature Sensor - Image 1](https://m.media-amazon.com/images/I/61e2lDgjH0L.jpg) ![Baxi 5114725 Duo-Tec Megalow Platinum Thermister NTC Temperature Sensor - Image 2](https://m.media-amazon.com/images/I/61Gg0Wo006L.jpg) ![Baxi 5114725 Duo-Tec Megalow Platinum Thermister NTC Temperature Sensor - Image 3](https://m.media-amazon.com/images/I/61i9RmBJfVL.jpg) ![Baxi 5114725 Duo-Tec Megalow Platinum Thermister NTC Temperature Sensor - Image 4](https://m.media-amazon.com/images/I/51Bysu6ItYL.jpg) ## Questions & Answers **Q: I have a Baxi Duotec 24 Combi ERP ..will this fit ? Does the boiler require draining to fit it ? Can it be done DIY** A: I have a friend (gas safe ) who fit this thermistor for me . It was a 10 minute task and boiler did not need draining as the thermistor fits in a pocket . As for whether it could be done as a diy job I would say probably yes for someone with good E/I knowledge. May friend did advise the task to be under taken by gas safe engineer to comply with all regs etc. **Q: Thread size?** A: HI The thread size is 1/8" **Q: Thread size?** A: Think it was 1/4 bsp **Q: Does this product need a washer/gasket? If so, which one?** A: Hi, If you buy a Genuine one you will need a washer as Baxi supply them as separate items. The Baxi Part Number for the washer is 248069, It used to be a fibre washer but they now sell a copper washer. If you buy a compatible one it will come with either a fibre washer or an O'Ring. It does need a seal, but it can be a fibre / copper washer or an O'Ring, though engineers I know tend to use PTFE tape to make the seal Steven ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works Perfectly *by B***I on 7 October 2023* We have a fairly old combi boiler which has been mostly faultless over the years. Recently whilst showering, the water would start off hot and intermittently lose temperature, going freezing cold. After some research, the temperature stat on the hot water side seems to be the main cause so ordered this, particularly as it’s a cheap and easy thing to try. Fitting took a whole 10 mins and was very easy. The process I followed was… 1. Switch of boiler at mains. 2. Switch off mains water and run both hold and cold taps till the water stops. 3. Remove boiler panel. 4. Locate stat on 3 way valve and remove plug. 5. Use 13mm spanner to remove faulty stat. There is a metal washer which may be still attached to the valve so also remove. 6. Insert new stat making sure not to over tighten. I also used a very small amount of PTFE tape to ensure no leaks. 7. Re-attach plastic plug and replace boiler cover. 8. Ensure all taps are switched back to off. 9. Switch mains water and boiler back on. 10. Bleed air out of taps and run hot water. Hopefully your hot water comes back on and you are fault free. I am a certified electrician so was comfortable doing this repair. Please DO NOT attempt if you don’t fee competent to do so. I am in no way responsible if you follow my instructions and damage your boiler. It is a very quick and cheap fix and saved us from calling out a plumber. If it didn’t work and had the potential to be a larger problem, then we’d obviously call out a professional. Happy that it’s worked and saved us a lot of money. ### ⭐⭐⭐⭐⭐ Great price and worked well On Baxi Megaflow for supply temp probe *by R***. on 16 February 2024* Worked well, fitted easily on Baxi Megaflow 28 HE (not Combi). Easy to fit, no need to shutoff water the supply temp probe has a well in the pipe so there is no water in there. ### ⭐⭐⭐⭐⭐ Good *by A***R on 31 May 2025* Solved the fault. Still all good . Good quality product ## Frequently Bought Together - Baxi 5114725 Duo-Tec Megalow Platinum Thermister NTC Temperature Sensor - HTS Boiler Cartridge Compatible with Baxi Duotec/Platinum 24 28 33 40 HE Diverter Valve Cartridge 7656807 (Supersedes 720003100) - HTS - Baxi Potterton Main Boiler Diverter Valve Cartridge + Actuator Motor 7656807 720003100 7216534 248733 --- ## 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.sg/products/64622128-baxi-5114725-duo-tec-megalow-platinum-thermister-ntc-temperature-sensor](https://www.desertcart.sg/products/64622128-baxi-5114725-duo-tec-megalow-platinum-thermister-ntc-temperature-sensor) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-11-05*