{"product_id":"ds18b20-waterproof-temperature-sensor-probe-55c-to-125c","title":"DS18B20 Waterproof Temperature Sensor Probe -55°C to +125°C","description":"\u003ch1\u003eDS18B20 Waterproof Temperature Sensor Probe -55°C to +125°C\u003c\/h1\u003e\n\n\u003cp\u003eThe DS18B20 is a digital temperature sensor encased in a waterproof stainless steel probe. It communicates over a 1-Wire bus, requiring only one data line (plus ground) for communication, and provides 9-bit to 12-bit Celsius temperature measurements. With an operating range of -55°C to +125°C and ±0.5°C accuracy from -10°C to +85°C, it’s perfect for environmental monitoring, aquariums, soil temperature, and industrial applications.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\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-bit to 12-bit (programmable)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e3.0V to 5.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003e1-Wire (Maxim Integrated)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCable Length\u003c\/td\u003e\n\u003ctd\u003e1 meter (3.2 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-aquarium-temperature-monitor-kit-v2\"\u003eAquarium or terrarium temperature monitor\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003eSoil temperature probe for smart gardening\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-home-brewing-temperature-monitor-kit-with-arduino-mega-plus-servo\"\u003eHome brewing fermentation temperature controller\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/kit-indoor-weather-station\"\u003eMulti-sensor weather station with Arduino or ESP32\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis sensor works with any microcontroller that supports the 1-Wire protocol, including Arduino (Uno, Nano, Mega), ESP8266, ESP32, Raspberry Pi, and STM32. It operates from 3.0V to 5.5V and can be used in parasitic power mode. Common pairings include Arduino with the OneWire library, or Raspberry Pi with DS18B20 kernel module support.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect VCC (red) to 3.3V or 5V, GND (black) to ground, and DQ (yellow) to a digital pin. A 4.7kΩ pull-up resistor from DQ to VCC is required. For cables longer than 5 meters, use a stronger pull-up (2.2kΩ) and consider shielded cable to minimize noise.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with Arduino?\u003c\/summary\u003e\u003cp\u003eYes, the DS18B20 works with Arduino using the OneWire and DallasTemperature libraries. Connect DQ to any digital pin with a 4.7kΩ pull-up resistor.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I extend the probe cable?\u003c\/summary\u003e\u003cp\u003eYes, you can extend the cable up to 100m with proper pull-up and power supply. For long runs, use twisted pair or shielded cable to maintain signal integrity.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow many sensors can I connect to one pin?\u003c\/summary\u003e\u003cp\u003eThe 1-Wire bus supports multiple sensors on a single pin. Each DS18B20 has a unique 64-bit serial code, so you can connect dozens by reading their addresses.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53444959732077,"sku":"CDN-0357","price":75.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_e0dbdea0-cd42-472e-960a-4025db78536b.jpg?v=1781512492","url":"https:\/\/compoden.com\/products\/ds18b20-waterproof-temperature-sensor-probe-55c-to-125c","provider":"Compoden","version":"1.0","type":"link"}