Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | DS18B20 |
| Measurement Range | -55°C to +125°C |
| Accuracy | ±0.5°C (from -10°C to +85°C) |
| Interface Protocol | 1-Wire Digital |
| Cable Length | 1 Meter |
| Probe Material | Stainless Steel 304 |
| Waterproof Rating | IP68 |
| Supply Voltage | 3.0V to 5.5V |
| Resolution | 9 to 12-bit configurable |
| Application | Aquariums, Hydroponics, HVAC |
Anonymous
Mar 26, 2026
Rating: 5/5
Great for learning projects
As a student working on an IoT project, this sensor was easy to integrate. The 1-wire protocol saves GPIO pins, and there are plenty of libraries available online to get started quickly.
Anonymous
Mar 24, 2026
Rating: 5/5
Reliable for fermentation monitoring
I use this to track temperatures during beer fermentation. The stainless steel probe is easy to sanitize, and the digital signal prevents interference from my other equipment. Highly recommended for home brewers.
Anonymous
Mar 22, 2026
Rating: 4/5
Good value, accurate readings
Bought this to monitor my reef tank temperature. It connects easily to my ESP32 board. The only reason for 4 stars instead of 5 is that the cable is a bit stiff, but performance-wise, it is excellent.
Anonymous
Mar 20, 2026
Rating: 5/5
Exactly as described
Fast shipping and the product matches the description perfectly. The sealing on the probe looks very professional. I am using it to trigger a fan when my server room gets too hot.
Anonymous
Mar 09, 2026
Rating: 5/5
Perfect for my hydroponic setup
This sensor works flawlessly with my Arduino controller. The waterproofing is genuine, and I've had it submerged in my nutrient tank for three weeks without any issues. Readings are consistent and match my calibrated thermometer.
Anonymous
Mar 07, 2026
Rating: 4/5
Holds up well outdoors
Installed this in a small outdoor pond. It has survived rain and direct sunlight without degradation. The temperature data helps me know when to adjust the heater. Solid build quality.
Q: Does it come with a pull-up resistor?
A: The sensor module itself does not include an external pull-up resistor. For proper operation on the 1-Wire bus, you typically need to add a 4.7kΩ resistor between the VCC and Data lines in your circuit.
Q: Is the stainless steel probe food safe?
A: The probe is made of 304 Stainless Steel, which is commonly used in food and beverage applications. However, for direct contact with consumables, please ensure your specific local regulations and hygiene standards are met.
Q: What is the maximum depth this sensor can withstand?
A: With an IP68 rating, this sensor is designed for continuous immersion. While specific pressure limits depend on installation, it is generally safe for typical aquarium, pond, and tank applications up to several meters deep.
Q: Is this sensor compatible with Raspberry Pi?
A: Yes, the DS18B20 is fully compatible with Raspberry Pi. You will need to enable the 1-Wire interface in the Raspberry Pi configuration settings and connect the data pin to a GPIO pin with a pull-up resistor.
Q: Can I extend the cable length?
A: Yes, you can extend the cable, but for long distances (over 10-20 meters), signal integrity may degrade. We recommend using shielded twisted-pair cable and ensuring a strong pull-up resistor if extending significantly.
Heidelberg Printing Press Automatic Blanket Wash Cloth - Non-Woven Cleaning Fabric, 500m Roll
$3,185.00
Bucket Pack Natural Wood Colored Pencils Water-Soluble for Kids Coloring and Doodling
$6.65
Chunfei Grocery Store Yunm'an GR02 Gravel Bike - Thru-Axle Disc Brake, Lightweight Touring with Multiple Rack Mounts
$6,444.00
Variable Frequency Drive Power Board ZPOW-591 for ACS880
$2,200.00
Professional Sketching Eraser Kit - Blending Stumps, Sponges, and Paper Tortillons for Highlight & Shadow Correction
$3.90
Weighted Water Bag with Handle, Thickened PV Mesh Gravity Ballast for Banner Stand Fixation (8KG)
$35.10
Ultra-Fine Purification Lint-Free Cloth Cleaning Cloth Lens Wipe High Quality 0730 Water-Absorbing Dust Removal UV Nozzle 100 Sheets
$96.00
Wen Zhengming Small Regular Script Calligraphy Cards: Li Sao Jing, Thousand Character Classic, Qin Fu, Cao Tang Shi Zhi, Qing Jing Jing, Record of the Drunken Pavilion, Red Cliff Ode
$59.00
Zhizhi Manshu Zhao Mengfu Small Regular Script Collection of Ancient Classics (Vol. 1) - Calligraphy Copybook, Brush Writing Cards, Foldable Practice Cards
$49.00
Language of Drums Motion Path Set - Essential Creativity and Rhythm Teaching Material for Drum Kits and Jazz Drums
$59.14
onlycook Sink Drain Basket, Faucet-Mounted Food Residue Separator and Washing Strainer - 1 Pack
$14.10
Heavy-Duty Wiper Arms and Blades for Trucks and Agricultural Vehicles - Universal Replacement Wiper Rubber Strips
$5.50
Bus Adapter FEPL-02 for ABB Variable Frequency Drive
$1,230.00
Baby National Trend Rattle Toy – Chewable Silicone, Easy-Grip Handle, Soft Sound for Early Learning
$19.90
Palace Museum Creative Stationery: Light & Shadow Graffiti Coloring Book - Exquisite DIY Children's Gift, Ancient Style Watercolor Set for Boys and Girls, Early Learning Art Toy
$29.70
Dongyi Study Room Antique Brass Water Pot, Brush Washer Basin, and Small Spoon Set for Calligraphy (3-Piece)
$33.10
![[Deposit Only] Slightly Round Mid-Heel Shoes – Matte Lambskin Puff Lolita Bow Pumps](https://www.gosteppe.com/cache/small/product/269338/legacy-main-1108a4ac9d29ca837505d228.webp)
[Deposit Only] Slightly Round Mid-Heel Shoes – Matte Lambskin Puff Lolita Bow Pumps
$38.00
Chunfei Grocery Store Yunan GR02 Gravel Bike with Thru-Axle Disc Brakes, Lightweight Touring Setup with Multiple Rack Mounts
$8,934.00
5A Natural Madagascar Rose Quartz Loose Beads, Pink Crystal Rhodonite Single Beads for DIY Jewelry Making Accessories
$0.70
Mini Portable Sketchbook - Blank Pocket Notebook for Doodling, Sketching, Watercolor, Acrylic, and Marker Art - Square Hand-Drawn Journal
$5.53
Kitchen Sink Drain Mat with Raised Slope - Splash-Proof Countertop Organizer for Faucet Areas
$9.00
Front Wheel Bearing for Hyundai Mistra - Mingtuo Brand - Also Fits Hyundai Sonata and Kia Opirus - Front and Rear Auto Bearings
$275.00
White Crystal Loose Beads Donghai Agate Gemstone Gold Rutilated Quartz Obsidian Bracelet Strand Aquamarine Amethyst Single Bead
$8.42
Kids Art DIY Stamp Kit - Round Sponge Daubers, Mushroom Head Stamps, and Paint for Graffiti
$2.44
YP8 YP-80000 Book Block Pressing Machine Supply Robust Structure Reliable Application
$23,790.00
Feileniao Four Seasons Flowers Line Drawing Atlas - Chinese Ink Painting Guide for Brush Beginners
$39.90
365 Days! Drummer Training Plan - Beginner Self-Study Guide for Drum Kits and Jazz Drums with Tutorial Audio
$55.00
New Rechargeable Electric Incense Making Machine – Compact Home Device for Extruding Coil, Sandalwood, and Stick Incense, Manual Incense Crafting Equipment
$268.00
Tire Stone Removal Hook, Multi-Function Tool with Built-in Screwdriver for Window Breaking and Self-Defense
$7.51
Pearl Sand Wax, Ice Flower Wax, Floating Aromatherapy Candle Colored Suspended Particles for Atmosphere Decor and DIY Crafts
$5.78
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
