Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | DS18B20 |
| Probe Material | Stainless Steel 304 |
| Waterproof Rating | IP68 |
| Temperature Range | -55°C to +125°C |
| Accuracy | ±0.5°C (from -10°C to +85°C) |
| Interface Protocol | 1-Wire Digital |
| Supply Voltage | 3.0V to 5.5V DC |
| Cable Length Options | 1m, 2m, 3m |
| Wire Configuration | 3-Core Shielded Cable |
| Application | Aquariums, HVAC, Soil Monitoring, Industrial Tanks |
Anonymous
Mar 31, 2026
Rating: 5/5
Reliable for server room monitoring
Deployed five of these across our server racks. They have been running 24/7 without any dropouts. The 1-wire protocol makes wiring multiple sensors very simple.
Anonymous
Mar 28, 2026
Rating: 4/5
Great sensor, cable could be softer
Works flawlessly with my ESP32 project. The only minor downside is that the cable is a bit stiff, making it slightly hard to route in tight spaces, but the durability makes up for it.
Anonymous
Mar 28, 2026
Rating: 5/5
Robust build quality
I bought the 3-meter version to reach my outdoor compost bin. The construction feels very solid, and the connection at the probe head looks like it will last for years.
Anonymous
Mar 28, 2026
Rating: 4/5
Good value for money
For the price, you can't beat the accuracy. It's not industrial grade laboratory equipment, but for hobbyist and general monitoring purposes, it is spot on.
Anonymous
Mar 24, 2026
Rating: 5/5
Accurate brewing temperatures
Using this to monitor fermentation temps. It responds quickly to changes and the stainless steel probe is easy to sanitize. Highly recommended for home brewers.
Anonymous
Mar 15, 2026
Rating: 5/5
Perfect for my hydroponic setup
The waterproof seal is excellent. I've had this submerged in my nutrient tank for three months with zero issues. The readings are consistent with my calibrated lab thermometer.
Q: Can I cut the cable to make it shorter if I don't need the full length?
A: Yes, you can cut the cable to your desired length. However, you must ensure you properly strip, twist, and re-seal the wires with heat shrink tubing and waterproof glue to maintain the IP68 rating.
Q: What is the response time for temperature changes?
A: Under typical conditions in water, the probe reaches 63% of a step change in about 10 to 15 seconds. Full stabilization usually occurs within 30 to 60 seconds depending on the medium.
Q: Does this come with a pull-up resistor built into the module?
A: This specific waterproof probe version typically does not include a built-in pull-up resistor on the cable end. You will need to add a 4.7kΩ resistor between the data and VCC lines on your microcontroller board.
Q: Do you offer a bulk discount for ordering 50 units?
A: Yes, we offer tiered pricing for bulk orders. Please contact our sales team via the 'Contact Seller' button on our store page with your required quantity for a custom quote.
Q: Is this compatible with Raspberry Pi GPIO pins directly?
A: Yes, the DS18B20 operates at 3.3V logic levels which are compatible with Raspberry Pi GPIO. Just remember to connect an external 4.7kΩ pull-up resistor as mentioned in our documentation.
Wooden Soap Trimmer with Drawer, Soap Planer and Edge Shaper, Free Shipping
$32.00
Hell Training Rock Guitar by Shinichi Kobayashi Electric Guitar Textbook Tutorial Speed Picking
$106.00
Zhao Mengfu Running-Cursive Calligraphy Copybook - Spring River in the Flower Moon Night Tang Poems for Tracing and Practice
$16.00
Precision Transcription Service for David Tao's 'Small Town Girl' Saxophone Arrangement by Mr. Chui, Three-Piece Set
$10.00
CANDLE.LAB | Small Wax Melting Pot 180ml with Stainless Steel Measuring Spoon for DIY Scented Candles 26
$16.00
Chengdu University City Laboratory Exhaust Piping and High-Purity Gas Pipeline Engineering - Consultation Welcome
$33,610.00
Premium Factory Supply Decorative Chains - Pendant Light Chains, Advertising Sign Hanging Chains, Anti-Static Iron Chains, Small Iron Links
$61.15
![[Damai Holds Micro-Needle Hair Transplant Patent] Precision Eyebrow Transplant – Custom Aesthetic Design](https://www.gosteppe.com/cache/small/product/269162/legacy-main-c1f4dd8da327a142f48d9814.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] Precision Eyebrow Transplant – Custom Aesthetic Design
$12,797.60
Commercial Dumpling & Bun Filling Machine – Automatic Stainless Steel Vegetable Chopper
$4,400.00
HVAC Fan VFD Control Cabinet with Power Frequency to Variable Frequency Conversion
$1,238.00
Export Quality Original Bathroom Paint Pens, Yellow and Green (2-Pack), Draw on Tiles and Glass
$4.93
Imported Automotive Transmission Differential Bearing B39-4 580704A
$338.00
Fully Automatic Carbon Steel and Stainless Steel Filter, Self-Cleaning Vertical Filter, Automatic Blowdown Filter
$37,500.00
Sheepskin Rattle for Babies 0-3 Years - Chewable Intangible Cultural Heritage Handmade Toy with Solid Wood and Brass Shaker Stick, Newborn Gift Box
$12.78
Swiss ITI Dental Implant / Korean Imported Dentium Implant Package with Crown - Shanghai Hospital
$3,980.00
Yandi Retainer Storage Case - Double-Layer Drain & Soak Box for Invisible Aligners and Orthodontic Cleaning
$30.50
Leaf-Shaped Template Stamp for Kids - Transparent Silicone DIY Mold with Sponge for Maple Leaf Rubbing and Painting
$4.93
High-Speed Internal Clamping Double Diaphragm Coupling High Torque Servo Motor Leadscrew Module Elastic Coupler
$367.30
Eye-Care Journaling Highlighters for Students - Colorful Markers for Note-Taking and Key Points
$3.02
Natural Stone Abacus Beads with Large Holes 5*10mm White Crystal Rose Crystal Flat Beads Jewelry Accessories Semi-Precious Stones
$1.50
Heavy-Duty Lifting Chain with Shackles at Both Ends - Manganese Steel Hoist for Pipes, Rebar, and Stones
$72.00
Industrial Large Roll Oil-Absorbent Paper, Jumbo Lint-Free Wiping Rolls, Cleaning Paper, Wholesale Industrial Jumbo Rolls
$150.00
5-Inch Flocked Scouring Pad, Stainless Steel Rust Removal and Polishing Disc, Circular Brush Cloth with Backed Flocking for Polishing
$25.00
High-Temperature Fire-Resistant Cotton Incense Burner Mat, Flame-Retardant Pad for Stick Incense Boxes and Aromatherapy Burners, Heat Insulation for Burning Incense
$2.98
80 Pairs Zhuji Ankle Socks, Solid Color All-Season Trendy Student Casual Sports Boat Socks, Disposable Short Socks
$9.14
Smart Toilet Storage Rack for Bathroom, Multi-Tier Floor-Standing Organizer with Waterproof Tissue Holder
$273.00
Yihuashu Calligraphy Felt Mat - Thickened Grid Cloth for Student Practice, Brush Writing Pad
$1.98
![Xiankan Yunshu [Danran] Ceramic Brush Washer - Hand-Painted Elegant Lily Design under Glaze for Calligraphy Supplies](https://www.gosteppe.com/cache/small/product/269142/legacy-main-f8acbab3a83eee11ff108718.webp)
Xiankan Yunshu [Danran] Ceramic Brush Washer - Hand-Painted Elegant Lily Design under Glaze for Calligraphy Supplies
$32.90
Chunfei Grocery Store Commuter Hard Fork Low-Step Mountain Bike for Road, City, Suburb, School, and Outings
$2,224.64
Zhang Xiaofeng 'Fu Lu' Hotpot Inkstone Set – Covered Ceramic Ink Well for Calligraphy and Chinese Painting
$38.00
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[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)
