--- product_id: 556468330 title: "6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring" brand: "xmk" price: "€ 99.61" currency: EUR in_stock: true url: https://www.desertcart.es/products/556468330-6600-166-temperature-sensor-for-sundance-spas-and-jacuzzi-hot store_origin: ES region: Spain --- # 12ft Wire Length Easy Plug & Play Precision Temp Monitoring 6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring **Brand:** xmk **Price:** € 99.61 **Availability:** ✅ In Stock ## Summary > Transform Your Spa Experience! 🌊 ## Quick Answers - **What is this?** 6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring by xmk - **How much does it cost?** € 99.61 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/556468330-6600-166-temperature-sensor-for-sundance-spas-and-jacuzzi-hot) ## Best For - xmk enthusiasts ## Why This Product - Trusted xmk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **🔒 Durable Design:** Includes a robust O-ring for a secure fit and long-lasting use. - • **📏 Generous Wiring:** 12-foot wire length ensures flexibility in installation. - • **⚡ Reliable Performance:** Eliminates watchdog errors for a seamless hot tub experience. - • **🌍 Universal Compatibility:** Designed for a wide range of Sundance Spas and Jacuzzi models. - • **🔧 Hassle-Free Installation:** Easily replace your old sensor with a simple wire feed technique. ## Overview The XMK 6600-166 Temperature Sensor is a high-quality replacement part designed for various Sundance Spas and Jacuzzi hot tub models. With its curled finger connectors and included O-ring, this sensor ensures accurate temperature readings and easy installation, making it a must-have for spa enthusiasts looking to maintain optimal water conditions. ## Description XMK 6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring ## Features - Compatibility: 6600-166 spa temperature sensor with curled finger connectors compatible with Sundance Spas and Jacuzzi Hot Tub, include 6540-228 spa sensor O-Ring. - Temperature Sensor for Jacuzzi Hot Tub Models: All J300-J365 tubs use the 6600-066 curled finger sensor, 2007+ J-270, J-280, J-355, J-365 and J-375 Models 2005+ J-210, J-220 and J-230, J-200 LED Models 2005-2007 J-325 Models 2004+ J-335, J-345 Models 2003-2005 Del Sol Models 2002-2003 J-320, J-330, J-340 Models 2002+ J-300. - Temperature Sensor for Sundance Spas Models: 2012+ 680 Peyton, 2011+ Select Series 2008+ 680 Denali, Tacoma; 780 Dover 2008-2012 680 Burlington model with or without a Circ Pump 2007+ Hamilton, Chelsee, Certa and Camden 2007 Metro, Solo, and 680 Models 2006 Caprio, Metro, Solo, and 680 Models 2006 Palermo, Bahia and Cayman 2005 850E Models 2005 780, Sweetwater and Del Sol Models (with curled finger connections). - Temp Sensor for Sundance Spas Models: 1998-2004 Sweetwater Series and Portofino Series: Caprio, Metro and Solo.All Lx-10 and LX-15 Systems used by Sundance All 1998-2007 701, 724 Systems (with curled Finger Connectors) Winchester, Kensington Spas Replaces 6600-070, 6600-071 6600-104. Used on All: Bahia, Burlington, Caprio, Cayman, Camden, Certa, Chelsee, Denali, Dover, Hamilton, Hartford, Hawthorne, Metro, Palermo, Solo, Tacoma. - Solve Water Temp Problem: The hot tub temperature sensor helps fix watchdog error display of " - - - - " on your spa hot tub. - Easy Installation: Cut off old temp sensor in the hot tub and tape old wire to new spa temp sensor wire to feed through back to control board. - Hot tub temp sensor comes with 12 foot wires which long enough to go from the sensor location to the control box. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | XMK | | Country of Origin | USA | | Item model number | 6600-166 | | Product Dimensions | 15.49 x 10.16 x 4.06 cm; 150 g | | ASIN | B0C4PFZFXJ | ## Images ![6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring - Image 1](https://m.media-amazon.com/images/I/61TT1OOgbUL.jpg) ![6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring - Image 2](https://m.media-amazon.com/images/I/61-yVJ7+rWL.jpg) ![6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring - Image 3](https://m.media-amazon.com/images/I/61TGeqc4zuL.jpg) ![6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring - Image 4](https://m.media-amazon.com/images/I/61ydUAXfFKL.jpg) ![6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring - Image 5](https://m.media-amazon.com/images/I/61S-3OtoknL.jpg) ## Frequently Bought Together - XMK 6600-166 Temperature Sensor for Sundance Spas and Jacuzzi Hot Tubs, with Curled Finger Connectors and 6540-228 O-Ring - XMK Flow Switch Replacement for Q-12DS-C2, Flow Switch for Sundance Spas, Jacuzzi Hot Tub and Sweetwater Spas, Replace Part# 2560-040 - XMK Temperature Sensor for Sundance Spa and Jacuzzi Hot Tub, Heat Temp Sensor for Jacuzzi and Sundance Spas Hot Tub Replace Part# 6600-167, 12' with Box End Connector and 6540-228 O-Ring --- ## 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.es/products/556468330-6600-166-temperature-sensor-for-sundance-spas-and-jacuzzi-hot](https://www.desertcart.es/products/556468330-6600-166-temperature-sensor-for-sundance-spas-and-jacuzzi-hot) --- *Product available on Desertcart Spain* *Store origin: ES* *Last updated: 2026-05-23*