{"product_id":"ds18b20-waterproof-temperature-sensor-probe-3m","title":"DS18B20 Waterproof Temperature Probe - 3m","description":"\u003cstyle\u003e\n  .nzn-desc {\n    width: 100%;\n    max-width: 1400px;\n    margin: 0 auto;\n    font-family: inherit;\n    color: #101114;\n  }\n\n  .nzn-desc,\n  .nzn-desc * {\n    box-sizing: border-box;\n  }\n\n  .nzn-desc .nzn-tabs {\n    width: 100%;\n    max-width: 100%;\n    display: flex;\n    gap: 30px;\n    border-bottom: 1px solid #e7e7e7;\n    overflow-x: auto;\n    overflow-y: hidden;\n    scrollbar-width: none;\n    min-height: 55px;\n    align-items: flex-end;\n    -webkit-overflow-scrolling: touch;\n  }\n\n  .nzn-desc .nzn-tabs::-webkit-scrollbar {\n    display: none;\n  }\n\n  .nzn-desc .nzn-tab {\n    flex: 0 0 auto;\n    background: none;\n    border: 0;\n    padding: 16px 0;\n    font: inherit;\n    font-size: 14px;\n    font-weight: 800;\n    white-space: nowrap;\n    border-bottom: 3px solid transparent;\n    color: #101114;\n    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align-items: flex-start;\n      gap: 10px;\n      font-size: 14px;\n      text-align: left;\n    }\n\n    .nzn-desc .nzn-checks li::before {\n      margin-top: 2px;\n    }\n\n    .nzn-desc .nzn-uses {\n      grid-template-columns: 1fr;\n    }\n\n    .nzn-desc .nzn-specs div {\n      grid-template-columns: 1fr;\n      gap: 4px;\n      padding: 13px 10px;\n    }\n\n    .nzn-desc .nzn-section-title {\n      text-align: left;\n      padding-top: 0;\n      margin-bottom: 22px;\n    }\n\n    .nzn-desc .nzn-started {\n      padding: 20px 16px;\n    }\n\n    .nzn-desc .nzn-included-card {\n      grid-template-columns: 1fr;\n      text-align: left;\n      justify-items: start;\n    }\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"nzn-desc\"\u003e\n  \u003cdiv class=\"nzn-tabs\"\u003e\n    \u003cbutton class=\"nzn-tab is-active\" type=\"button\" data-tab=\"overview\"\u003eOverview\u003c\/button\u003e\n    \u003cbutton class=\"nzn-tab\" type=\"button\" data-tab=\"specifications\"\u003eSpecifications\u003c\/button\u003e\n    \u003cbutton class=\"nzn-tab\" type=\"button\" data-tab=\"getting-started\"\u003eGetting Started\u003c\/button\u003e\n    \u003cbutton class=\"nzn-tab\" type=\"button\" data-tab=\"included\"\u003eWhat's Included\u003c\/button\u003e\n    \u003cbutton class=\"nzn-tab\" type=\"button\" data-tab=\"uses\"\u003eCommon Uses\u003c\/button\u003e\n    \u003cbutton class=\"nzn-tab\" type=\"button\" data-tab=\"faqs\"\u003eFAQs\u003c\/button\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"nzn-card\"\u003e\n    \u003cdiv class=\"nzn-panel is-active\" data-panel=\"overview\"\u003e\n      \u003cdiv class=\"nzn-panel-content\"\u003e\n        \u003cdiv class=\"nzn-overview\"\u003e\n          \u003cdiv class=\"nzn-overview-copy\"\u003e\n            \u003cp\u003eThe DS18B20 is a waterproof digital temperature probe with a 3 metre cable and bare wire ends. It uses the Dallas 1-Wire protocol for accurate temperature readings over a single data line, making it ideal for Arduino, ESP32, Raspberry Pi, Home Assistant, and outdoor sensing projects.\u003c\/p\u003e\n\n            \u003cul class=\"nzn-checks\"\u003e\n              \u003cli\u003eWaterproof stainless steel temperature probe\u003c\/li\u003e\n              \u003cli\u003e3 metre cable for longer sensor placement\u003c\/li\u003e\n              \u003cli\u003eDigital 1-Wire output using a single data pin\u003c\/li\u003e\n              \u003cli\u003eWorks with 3.3V and 5V microcontrollers\u003c\/li\u003e\n              \u003cli\u003eGreat for liquid, outdoor, soil, freezer, and brewing projects\u003c\/li\u003e\n            \u003c\/ul\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"nzn-started\"\u003e\n            \u003ch3\u003eQuick Start\u003c\/h3\u003e\n\n            \u003cdiv class=\"nzn-step\"\u003e\n              \u003cspan\u003e1\u003c\/span\u003e\n              \u003cdiv\u003e\n                \u003cstrong\u003eConnect power\u003c\/strong\u003e\n                \u003cp\u003eConnect red to 3.3V or 5V, and black to GND.\u003c\/p\u003e\n              \u003c\/div\u003e\n            \u003c\/div\u003e\n\n            \u003cdiv class=\"nzn-step\"\u003e\n              \u003cspan\u003e2\u003c\/span\u003e\n              \u003cdiv\u003e\n                \u003cstrong\u003eConnect data\u003c\/strong\u003e\n                \u003cp\u003eConnect yellow to any digital I\/O pin on your microcontroller.\u003c\/p\u003e\n              \u003c\/div\u003e\n            \u003c\/div\u003e\n\n            \u003cdiv class=\"nzn-step\"\u003e\n              \u003cspan\u003e3\u003c\/span\u003e\n              \u003cdiv\u003e\n                \u003cstrong\u003eAdd pull-up resistor\u003c\/strong\u003e\n                \u003cp\u003eUse a 4.7kΩ resistor between VCC and DATA for reliable 1-Wire operation.\u003c\/p\u003e\n              \u003c\/div\u003e\n            \u003c\/div\u003e\n\n            \u003cdiv class=\"nzn-step\"\u003e\n              \u003cspan\u003e4\u003c\/span\u003e\n              \u003cdiv\u003e\n                \u003cstrong\u003eInstall library\u003c\/strong\u003e\n                \u003cp\u003eFor Arduino, install the OneWire and DallasTemperature libraries.\u003c\/p\u003e\n              \u003c\/div\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"nzn-note\"\u003e\n        \u003cstrong\u003ePlease note:\u003c\/strong\u003e A 4.7kΩ pull-up resistor is required between VCC and DATA. Resistor is not included.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"nzn-panel\" data-panel=\"specifications\"\u003e\n      \u003cdiv class=\"nzn-panel-content\"\u003e\n        \u003ch3 class=\"nzn-section-title\"\u003eSpecifications\u003c\/h3\u003e\n\n        \u003cdiv class=\"nzn-specs\"\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eSensor Chip\u003c\/span\u003e\u003cstrong\u003eDS18B20\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eProtocol\u003c\/span\u003e\u003cstrong\u003eDallas \/ Maxim 1-Wire\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eSupply Voltage\u003c\/span\u003e\u003cstrong\u003e3.0V – 5.5V DC\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eTemperature Range\u003c\/span\u003e\u003cstrong\u003e-50°C to +125°C\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eAccuracy\u003c\/span\u003e\u003cstrong\u003e±0.5°C from -10°C to +85°C\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eResolution\u003c\/span\u003e\u003cstrong\u003e9–12 bit adjustable\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eOutput\u003c\/span\u003e\u003cstrong\u003eDigital 1-Wire\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eCable Length\u003c\/span\u003e\u003cstrong\u003e3 metres\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eWire End\u003c\/span\u003e\u003cstrong\u003eBare \/ unterminated\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eProbe Housing\u003c\/span\u003e\u003cstrong\u003eStainless steel\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eProbe Size\u003c\/span\u003e\u003cstrong\u003eApprox. 6mm × 50mm\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eWaterproofing\u003c\/span\u003e\u003cstrong\u003eFully sealed, suitable for immersion\u003c\/strong\u003e\n\u003c\/div\u003e\n          \u003cdiv\u003e\n\u003cspan\u003eWires\u003c\/span\u003e\u003cstrong\u003eRed VCC, Yellow DATA, Black GND\u003c\/strong\u003e\n\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"nzn-note\"\u003e\n        \u003cstrong\u003ePlease note:\u003c\/strong\u003e This probe has bare wire ends, so soldering, screw terminals, or another suitable connector method is required.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"nzn-panel\" data-panel=\"getting-started\"\u003e\n      \u003cdiv class=\"nzn-panel-content\"\u003e\n        \u003cdiv class=\"nzn-started\"\u003e\n          \u003ch3\u003eGetting Started\u003c\/h3\u003e\n\n          \u003cdiv class=\"nzn-step\"\u003e\n            \u003cspan\u003e1\u003c\/span\u003e\n            \u003cdiv\u003e\n              \u003cstrong\u003eWire VCC\u003c\/strong\u003e\n              \u003cp\u003e\u003cspan class=\"wire-dot\" style=\"background:#c0392b;\"\u003e\u003c\/span\u003eRed wire → 3.3V or 5V.\u003c\/p\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"nzn-step\"\u003e\n            \u003cspan\u003e2\u003c\/span\u003e\n            \u003cdiv\u003e\n              \u003cstrong\u003eWire DATA\u003c\/strong\u003e\n              \u003cp\u003e\u003cspan class=\"wire-dot\" style=\"background:#f1c40f;border:1px solid #ccc;\"\u003e\u003c\/span\u003eYellow wire → any digital I\/O pin.\u003c\/p\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"nzn-step\"\u003e\n            \u003cspan\u003e3\u003c\/span\u003e\n            \u003cdiv\u003e\n              \u003cstrong\u003eWire GND\u003c\/strong\u003e\n              \u003cp\u003e\u003cspan class=\"wire-dot\" style=\"background:#222;\"\u003e\u003c\/span\u003eBlack wire → GND.\u003c\/p\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"nzn-step\"\u003e\n            \u003cspan\u003e4\u003c\/span\u003e\n            \u003cdiv\u003e\n              \u003cstrong\u003eAdd 4.7kΩ pull-up resistor\u003c\/strong\u003e\n              \u003cp\u003eConnect one 4.7kΩ resistor between VCC and DATA.\u003c\/p\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"nzn-step\"\u003e\n            \u003cspan\u003e5\u003c\/span\u003e\n            \u003cdiv\u003e\n              \u003cstrong\u003eInstall libraries\u003c\/strong\u003e\n              \u003cp\u003eFor Arduino IDE, install OneWire by Paul Stoffregen and DallasTemperature by Miles Burton.\u003c\/p\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"nzn-note\"\u003e\n        \u003cstrong\u003eWiring:\u003c\/strong\u003e Red → VCC, Yellow → DATA, Black → GND. One 4.7kΩ pull-up resistor is required between VCC and DATA.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"nzn-panel\" data-panel=\"included\"\u003e\n      \u003cdiv class=\"nzn-panel-content\"\u003e\n        \u003ch3 class=\"nzn-section-title\"\u003eWhat's Included\u003c\/h3\u003e\n\n        \u003cdiv class=\"nzn-included-card\"\u003e\n          \u003cdiv class=\"nzn-included-qty\"\u003e1×\u003c\/div\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eDS18B20 waterproof temperature probe\u003c\/strong\u003e\n            \u003cp\u003e3 metre cable with stainless steel probe housing and bare wire ends.\u003c\/p\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"nzn-note\"\u003e\n        \u003cstrong\u003ePlease note:\u003c\/strong\u003e 4.7kΩ pull-up resistor is not included.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"nzn-panel\" data-panel=\"uses\"\u003e\n      \u003cdiv class=\"nzn-panel-content\"\u003e\n        \u003ch3 class=\"nzn-section-title\"\u003eCommon Uses\u003c\/h3\u003e\n\n        \u003cdiv class=\"nzn-uses\"\u003e\n          \u003cdiv class=\"nzn-use\"\u003ePond, tank, and aquaponics temperature monitoring\u003c\/div\u003e\n          \u003cdiv class=\"nzn-use\"\u003eGreenhouse, garden bed, and soil temperature sensing\u003c\/div\u003e\n          \u003cdiv class=\"nzn-use\"\u003eChest freezer and cold storage monitoring\u003c\/div\u003e\n          \u003cdiv class=\"nzn-use\"\u003eHome brewing and fermentation temperature tracking\u003c\/div\u003e\n          \u003cdiv class=\"nzn-use\"\u003eUnderfloor heating and HVAC temperature sensing\u003c\/div\u003e\n          \u003cdiv class=\"nzn-use\"\u003eArduino, Raspberry Pi, ESP32, and Home Assistant projects\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"nzn-note\"\u003e\n        \u003cstrong\u003ePlease note:\u003c\/strong\u003e The 3m cable makes this probe useful when the sensor needs to be placed away from the controller.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"nzn-panel\" data-panel=\"faqs\"\u003e\n      \u003cdiv class=\"nzn-panel-content\"\u003e\n        \u003ch3 class=\"nzn-section-title\"\u003eCommon Questions\u003c\/h3\u003e\n\n        \u003cdiv class=\"nzn-faq\"\u003e\n          \u003cdiv class=\"nzn-faq-item\"\u003e\n            \u003cstrong\u003eWill the signal degrade over 3 metres?\u003c\/strong\u003e\n            \u003cp\u003eNo, the DS18B20 uses a digital 1-Wire signal. For reliable operation, use the standard 4.7kΩ pull-up resistor between VCC and DATA.\u003c\/p\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"nzn-faq-item\"\u003e\n            \u003cstrong\u003eCan I connect multiple sensors to one data pin?\u003c\/strong\u003e\n            \u003cp\u003eYes, multiple DS18B20 sensors can share one data line. Each sensor has a unique address. Use one 4.7kΩ pull-up resistor on the data line.\u003c\/p\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"nzn-faq-item\"\u003e\n            \u003cstrong\u003eIs the probe waterproof?\u003c\/strong\u003e\n            \u003cp\u003eYes, the stainless steel probe is sealed and suitable for immersion. The bare wire end and controller connection should be kept protected from moisture.\u003c\/p\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv class=\"nzn-faq-item\"\u003e\n            \u003cstrong\u003eIs the 4.7kΩ resistor included?\u003c\/strong\u003e\n            \u003cp\u003eNo, the resistor is not included. A 4.7kΩ pull-up resistor is required for normal 1-Wire operation.\u003c\/p\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"nzn-note\"\u003e\n        \u003cstrong\u003ePlease note:\u003c\/strong\u003e The probe end is waterproof, but the bare wire\/controller end still needs proper protection in wet environments.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript\u003e\n  document.addEventListener('click', function(event) {\n    const tab = event.target.closest('.nzn-desc .nzn-tab');\n    if (!tab) return;\n\n    const wrapper = tab.closest('.nzn-desc');\n    if (!wrapper) return;\n\n    const target = tab.getAttribute('data-tab');\n\n    wrapper.querySelectorAll('.nzn-tab').forEach(function(item) {\n      item.classList.remove('is-active');\n    });\n\n    wrapper.querySelectorAll('.nzn-panel').forEach(function(panel) {\n      panel.classList.remove('is-active');\n    });\n\n    tab.classList.add('is-active');\n\n    const panel = wrapper.querySelector('[data-panel=\"' + target + '\"]');\n    if (panel) panel.classList.add('is-active');\n  });\n\u003c\/script\u003e","brand":"NZN Electronics","offers":[{"title":"Default","offer_id":42738660311136,"sku":"NZE-DS18B20-3M","price":5.99,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/6127\/0112\/files\/DS18B20_3m_Hero.png?v=1777968755","url":"https:\/\/www.nznelectronics.co.nz\/products\/ds18b20-waterproof-temperature-sensor-probe-3m","provider":"NZN Electronics","version":"1.0","type":"link"}