{"product_id":"ds18b20-waterproof-temperature-sensor-probe-stainless-steel-1m-1wire-arduino","title":"DS18B20 Waterproof Temperature Sensor Probe — Stainless Steel, 1-Wire, 1M Cable, Arduino","description":"\u003ch2\u003eDS18B20 Waterproof Temperature Sensor Probe — Stainless Steel, 1-Wire, 1M Cable\u003c\/h2\u003e\u003cp\u003eThis DS18B20 waterproof temperature sensor probe features a stainless steel housing with epoxy-sealed tip, making it suitable for liquid immersion, outdoor, and high-humidity environments. The DS18B20 digital sensor communicates over the 1-Wire protocol, delivering ±0.5°C accurate temperature readings from -55°C to +125°C with 9 to 12-bit configurable resolution. The 1-meter cable allows flexible installation in aquariums, soil, pipes, and HVAC ducts.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor IC\u003c\/td\u003e\n\u003ctd\u003eDS18B20 (Maxim\/Analog Devices)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003e1-Wire (single data line)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-55°C to +125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.5°C (-10°C to +85°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e9–12 bit (configurable, default 12-bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Time\u003c\/td\u003e\n\u003ctd\u003e750ms max (12-bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.0–5.5V (or parasitic power from data line)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e1 meter (3-wire: VCC, GND, DATA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing\u003c\/td\u003e\n\u003ctd\u003eStainless steel, epoxy-sealed tip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Color Code\u003c\/td\u003e\n\u003ctd\u003eRed=VCC, Black=GND, Yellow\/White=DATA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose DS18B20 Waterproof Probe?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof stainless steel housing\u003c\/strong\u003e — safe for direct liquid immersion in water, aquariums, and coolant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e±0.5°C factory calibration\u003c\/strong\u003e — no external calibration or ADC needed, digital output is ready to use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-Wire protocol\u003c\/strong\u003e — multiple DS18B20 sensors on a single data wire, each with unique 64-bit ROM address\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-55°C to +125°C range\u003c\/strong\u003e — covers freezer (−20°C), boiling water (100°C), and industrial process temperatures\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParasitic power mode\u003c\/strong\u003e — can operate on just 2 wires (DATA + GND) without separate VCC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino\u003c\/strong\u003e: OneWire + DallasTemperature libraries; connect DATA to any digital pin with 4.7kΩ pull-up to VCC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESP32 \/ ESP8266\u003c\/strong\u003e: Same libraries, 3.3V compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaspberry Pi\u003c\/strong\u003e: Built-in 1-Wire kernel driver (w1-gpio); read via \/sys\/bus\/w1\/devices\/\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicroPython\u003c\/strong\u003e: onewire + ds18x20 modules (built-in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome Assistant \/ ESPHome\u003c\/strong\u003e: dallas sensor platform for smart home temperature monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I connect DS18B20 to Arduino?\u003c\/strong\u003e\u003cbr\u003eA: Connect Red (VCC) to 5V, Black (GND) to GND, Yellow\/White (DATA) to a digital pin (e.g., D2). Add a 4.7kΩ pull-up resistor between DATA and VCC. Install the OneWire and DallasTemperature libraries in Arduino IDE. Use \u003ccode\u003esensors.getTempCByIndex(0)\u003c\/code\u003e to read temperature in Celsius.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can I connect multiple DS18B20 probes to one Arduino pin?\u003c\/strong\u003e\u003cbr\u003eA: Yes — this is a key advantage of 1-Wire. Connect all probes’ DATA lines together to one Arduino pin with a single 4.7kΩ pull-up. Each DS18B20 has a unique 64-bit address; use \u003ccode\u003esensors.getAddress()\u003c\/code\u003e to identify each sensor and read them individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is this probe safe for aquarium use?\u003c\/strong\u003e\u003cbr\u003eA: Yes, for freshwater aquariums. The stainless steel housing and epoxy-sealed tip are waterproof and non-toxic for freshwater fish. For saltwater (marine) aquariums, long-term immersion in salt water may cause corrosion — use a probe with a fully sealed silicone or PTFE cable for marine applications.\u003c\/p\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1× DS18B20 Waterproof Temperature Sensor Probe (stainless steel, 1M cable)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"1M","offer_id":46991460172011,"sku":"14:350852#1M","price":5.68,"currency_code":"USD","in_stock":true},{"title":"2M","offer_id":46991460204779,"sku":"14:10#2M","price":8.08,"currency_code":"USD","in_stock":true},{"title":"3M","offer_id":46991460237547,"sku":"14:29#3M","price":12.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/ds18b20-waterproof-temperature-sensor-probe-stainless-steel-1m-wire.webp?v=1761794886","url":"https:\/\/keszoox.com\/products\/ds18b20-waterproof-temperature-sensor-probe-stainless-steel-1m-1wire-arduino","provider":"Keszoox","version":"1.0","type":"link"}