{"product_id":"brass-thermistor-10k3435-probe-temperature-sensor-boiler-water-heater","title":"Brass Thermistor 10K3435 Probe – Boiler Water Heater Sensor","description":"\u003ch2\u003eBrass Thermistor 10K3435 Temperature Sensor Probe\u003c\/h2\u003e\n\u003cp\u003eKeep your wall-mounted boiler or water heater running at peak efficiency with this precision-made \u003cstrong\u003eBrass Thermistor 10K3435 Probe\u003c\/strong\u003e. Designed as a direct replacement temperature sensor, it delivers accurate, reliable readings to ensure your heating system maintains optimal water temperature at all times. The durable brass construction offers excellent thermal conductivity and long-lasting corrosion resistance, making it a dependable choice for residential and light-commercial heating systems.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-quality solid brass for superior heat transfer and durability\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThermistor Type:\u003c\/strong\u003e 10K 3435 NTC (Negative Temperature Coefficient) for precise temperature measurement\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 66 mm \/ 2.59 in — compact form factor fits standard boiler and water heater ports\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Gold (brass finish)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity Options:\u003c\/strong\u003e Available in packs of 1, 2, or 3 — stock up for maintenance or spare parts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible with:\u003c\/strong\u003e Wall-mounted boilers, tankless water heaters, and central heating systems that use a 10K NTC sensor\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand New \u0026amp; High Quality:\u003c\/strong\u003e Each probe is manufactured to tight tolerances for consistent, accurate performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse; width:100%;\"\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eBrass\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eNTC Thermistor 10K 3435\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e66 mm \/ 2.59 in\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eColor \/ Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eGold (Brass)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003ePack Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e1 \/ 2 \/ 3 Pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px; border:1px solid #ddd;\"\u003eMade in Mainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat's in the Box?\u003c\/h3\u003e\n\u003cp\u003e1, 2, or 3 × Brass Thermistor 10K3435 Temperature Sensor Probe (quantity based on selected option)\u003c\/p\u003e\n\n\u003ch3\u003ePlease Note\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePhotos may not reflect exact size — please refer to the listed dimensions for accuracy.\u003c\/li\u003e\n  \u003cli\u003eAllow ±5–10 mm variance due to manual measurement.\u003c\/li\u003e\n  \u003cli\u003eScreen color settings may cause slight variation in the appearance of the product's finish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-400cm-sealing-tape-faucet-sealing-tape-oil-free-leak-proof-water-pipe-gas-pipeline-sealing-tape\"\u003e1PC 400cm Sealing Tape – Oil-Free Leak Proof Water Pipe \u0026amp; Gas Pipeline Sealing Tape\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-multi-use-faucet-bubbler-wrenches-6-sizes-sink-wrenches-detach-tool-for-kitchen-bathroom-faucet-parts-repair-spanner\"\u003e1PC Multi-Use Faucet Bubbler Wrenches – 6 Sizes Sink Wrench Detach Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-10g-high-grade-silicon-grease-lubricant-o-lubrication-good-odorless-smoothness-for-o-rings-tube-silicone-grease-lubricant\"\u003e1PC 10g High Grade Silicone Grease Lubricant for O-Rings \u0026amp; Tubes\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/eye-face-protection\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on eye and face protection\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What heating systems is this brass thermistor 10K3435 probe compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This 10K NTC thermistor probe is designed for wall-mounted boilers, tankless water heaters, and central heating systems that require a 10K 3435 NTC temperature sensor. Always verify your system's sensor specifications before purchasing to ensure compatibility.\u003c\/p\u003e\n\u003ch4\u003eQ: What does the 10K3435 specification mean for this temperature sensor?\u003c\/h4\u003e\n\u003cp\u003eA: The \"10K\" refers to the thermistor's resistance value of 10,000 ohms (10 kΩ) at 25°C, and \"3435\" is the B-value (beta coefficient) that describes how resistance changes with temperature. Together, these values define the sensor's temperature-response curve, making it a precise and predictable replacement for OEM boiler sensors with the same rating.\u003c\/p\u003e\n\u003ch4\u003eQ: Why is brass used for the probe housing?\u003c\/h4\u003e\n\u003cp\u003eA: Brass is chosen for its excellent thermal conductivity, which allows the sensor to respond quickly to water temperature changes, as well as its strong resistance to corrosion in wet heating environments. This makes it a durable, long-life choice for boiler and water heater applications.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I purchase multiple probes in one order?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This listing is available in packs of 1, 2, or 3 probes. Buying a multi-pack is a great way to have spare sensors on hand for future maintenance or replacements.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What heating systems is this brass thermistor 10K3435 probe compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This 10K NTC thermistor probe is designed for wall-mounted boilers, tankless water heaters, and central heating systems that require a 10K 3435 NTC temperature sensor. 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