{"product_id":"high-temp-waterproof-ds18b20-digital-temperature-sensor-3m-long","title":"High Temp Waterproof DS18B20 Digital Temperature Sensor - 3m long","description":"\u003cp\u003eThis is a pre-wired and waterproofed version of the DS18B20 sensor made with a PTFE wire cable. Handy for when you need to measure something far away, or in wet conditions. This sensor is a little more expensive than the other waterproof version we have with a PVC cable because this one can be used up to 125°C - the limit of the sensor itself. That said, it's still not recommended for salt-water or corrosive environments since the stainless steel will eventually rust!\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eBecause the sensor signal is digital, you don't get any signal degradation even over long distances! These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter. They work great with any microcontroller using a single digital pin, and you can even connect multiple ones to the same pin, each one has a unique 64-bit ID burned in at the factory to differentiate them. Usable with 3.0-5.0V systems.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe only downside is they use the Dallas 1-Wire protocol, which is somewhat complex, and requires a bunch of code to parse out the communication. If you want something really simple, and you have an analog input pin, the TMP36 is trivial to get going.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eYou'll need a 4.7k resistor which is required as a pullup from the DATA to VCC line when using the sensor. Here's a CircuitPython\/Python guide for these sensors. We don't have a detailed Arduino tutorial, but you can get started by using the Dallas Temperature Control Arduino library which requires also the OneWire Library.\u003c\/p\u003e\n\u003ch3\u003eRevision History:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAs of May 9, 2022, the three wires within the cable are now 1mm diameter with red, black, and white wires. Previous version came with orange, white, and blue wires.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCable Specs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStainless steel #316 tube 6mm diameter by ~31mm long (size of stainless steel capsule may vary!)\u003c\/li\u003e\n\u003cli\u003eCable is approx 3m long \/ 300cm long\u003c\/li\u003e\n\u003cli\u003eContains DS18B20 temperature sensor\u003c\/li\u003e\n\u003cli\u003eThree wires - Red connects to 3-5V, Black connects to ground, and White is data.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDS18B20 Technical Specs\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUsable temperature range: -55 to 125°C (-67°F to +257°F)\u003c\/li\u003e\n\u003cli\u003e9 to 12-bit selectable resolution\u003c\/li\u003e\n\u003cli\u003eUses 1-Wire interface- requires only one digital pin for communication\u003c\/li\u003e\n\u003cli\u003eUnique 64 bit ID burned into chip\u003c\/li\u003e\n\u003cli\u003eMultiple sensors can share one pin\u003c\/li\u003e\n\u003cli\u003e±0.5°C Accuracy from -10°C to +85°C\u003c\/li\u003e\n\u003cli\u003eTemperature-limit alarm system\u003c\/li\u003e\n\u003cli\u003eQuery time is less than 750ms\u003c\/li\u003e\n\u003cli\u003eUsable with 3.0V to 5.5V power\/data\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDS18B20 Datasheet\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":56199992738114,"sku":"xjv1789700549662","price":19.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1013\/4392\/0450\/files\/high-temp-waterproof-ds18b20-digital-temperature-sensor---3m-long_1.jpg?v=1789700557","url":"https:\/\/bouclebox.shop\/products\/high-temp-waterproof-ds18b20-digital-temperature-sensor-3m-long","provider":"My Store","version":"1.0","type":"link"}