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 31, 2026
Rating: 4/5
Good value but cable is stiff
The sensor itself is accurate and easy to code for. My only complaint is that the cable is a bit stiff, making it slightly difficult to route in tight spaces. Otherwise, great product.
Anonymous
Mar 26, 2026
Rating: 5/5
Reliable industrial grade feel
I bought five of these for a hydroponic system. They have been submerged for three months without any issues. The stainless steel probe feels very durable.
Anonymous
Mar 18, 2026
Rating: 5/5
Easy to integrate
Plug and play with Raspberry Pi. The 1-wire protocol makes wiring simple since you can daisy-chain multiple sensors on a single data pin. Very happy with this purchase.
Anonymous
Mar 07, 2026
Rating: 5/5
Perfect for my aquarium project
This sensor works flawlessly with my Arduino setup. The waterproofing is solid, and the temperature readings are consistent with my glass thermometer. Highly recommended for DIY projects.
Anonymous
Mar 05, 2026
Rating: 4/5
Accurate and fast
Response time is quick when moved between different water temperatures. I verified the accuracy against a calibrated lab thermometer and it was within 0.2 degrees. Lost one star because the connector wasn't included.
Anonymous
Mar 02, 2026
Rating: 5/5
Best DS18B20 I've found
I have tried several brands of waterproof DS18B20 sensors, and this one has the best build quality. The seal on the probe looks very professional and robust.
Q: Can this sensor be used in saltwater aquariums?
A: Yes, the stainless steel 304 probe is resistant to corrosion and suitable for saltwater environments, provided the cable connections remain dry.
Q: Can I use this with a 3.3V microcontroller?
A: Yes, the sensor operates within a voltage range of 3.0V to 5.5V, making it fully compatible with 3.3V systems like many ESP32 or Raspberry Pi models.
Q: Is the output analog or digital?
A: The DS18B20 outputs a digital signal via the 1-Wire protocol, so no analog-to-digital converter is needed.
Q: Does this come with a pull-up resistor?
A: No, the sensor does not include an external pull-up resistor. You will need to add a 4.7kΩ resistor between the data line and VCC in your circuit.
Q: What is the maximum cable length extension possible?
A: While the standard cable is 1 meter, users often successfully extend the data lines up to 10-20 meters using shielded twisted pair cable, though signal integrity may vary based on environment.
Marie's Sketch Blending Knife Set for Highlights, Shadows, and Quick Sketches - Professional Art Student Smudging Tools with Sponge Blenders, Paper Stumps, and Full Correction Kit for Drawing and Tracing
$9.25
Meiao Dental Imported Implant Package: Swiss ITI Straumann Implant Abutment and Prosthetic Teeth
$5,955.00
Bottled Water Faucet Stand, Large Water Jug Dispenser Rack, Pure Water Bucket Holder with Inverted Drinking Cover
$7.13
Dust Extraction Sanding Table - Industrial Pulse Cartridge Collector for Polishing, Stone, and Woodworking Dust
$600.00
Diamond Tire 255/45R20
$518.00
Amusement Park Suspension Bridge - 15m/20m/25m/30m Viral Swing Bridge with Iron and Steel Chains
$58.00
Paint Spray Catalytic Combustion Equipment - Industrial Exhaust Gas Treatment Device - Activated Carbon Adsorption/Desorption CO Catalytic Combustion
$324,999.00
Car Wheel Tire Bolt Rust-Proof Cap Universal Size 17 19 21 Decorative Dust-Proof Protective Cap Cover
$15.70
Commercial Electric Vegetable Slicer - Multi-Function Stainless Steel Machine for Potatoes and Canteens
$2,017.28
Irregular Ticket Stub Watercolor Paper Stamp Blank Drawing Paper 300g Cotton Pulp Fine Texture Thickened with Serrated Edges Specialized Paper for Art Students
$5.60
Stainless Steel Electric Buffet Warmer with Visible Lid - Square Flip-Top Chafing Dish for Hotels
$251.70
Baohong Cotton Pulp Watercolor Paper Pad 300g Cold/Hot Press, Glued on Four Sides, 16K/8K - Premium Full Cotton Art Paper for Oil Pastels and Professional Artists (Baoding, China)
$17.00
ORDER Industrial Large Roll Wiper Paper Dispenser, TORK Multi-Convenience Roll Stand
$170.00
Lifting Chain Slings Manufacturer, MHU Lifting Gear, G80 Manganese Steel Hoisting Chains, Single and Double Leg Sets
$835.00
Multi-Function Bathroom Storage Rack for Toilet, Washroom, and Sanitary Supplies, Over-Toilet Home Organizer
$20.30
Portable Travel Art Set for Kids - Watercolor Paint Box with Sketchbook and Mini Drawing Board
$9.05
Pneumatic Fitting PU Straight Connector Quick-Insert Plastic High-Pressure Air Hose Fitting PU-4681012
$4.90
Chain Sling Lifting Shackle Steel Chain Single Leg with Hooks on Both Ends for Towing, 2m Length, 5 Ton Capacity
$79.00
Large Brush Set Supply - Watercolor Pen Set for Children's Day Painting, Art, and Coloring
$25.55
Non-Bleeding Liquid Candle Dye - Macaron Colors for Soy Wax DIY Aromatherapy Candles
$21.00
Alloy Wheel Lug Nut Caps Compatible with Buick Excelle, Verano, Regal, LaCrosse, Encore, Cruze, Malibu, and GL8
$3.40
![[Damai Holds Micro-Needle Hair Transplant Patent] AI Robot Precision Hair Transplant | 1000 Units Hairline Planting](https://www.gosteppe.com/cache/small/product/269438/legacy-main-d695e1be3b1b8212f24ac863.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] AI Robot Precision Hair Transplant | 1000 Units Hairline Planting
$24,990.00
Premium Ceramic Tea Canister Packaging Box, Empty Gift Box for Black Tea, Pu'er, White Tea, Biluochun, Gift Set Empty Box
$104.95
Thickened 304 Stainless Steel Planter Box for Home Balcony Vegetable Gardening - Rectangular Large Flower Pot for Rooftop Planting
$204.00
Zhongheng Car Tire Stone Hook - Multi-Function Tire Cleaner Tool to Prevent Blowouts
$7.14
JoanMiro 3D Printing Pen for Kids, Low-Temperature 3D Stereoscopic Drawing Toy, Perfect Gift for Boys and Girls on Children's Day
$29.90
Stainless Steel Tire Stone Removal Hook - Multi-Function Car Tire Cleaning Tool for Picking and Scraping Stones
$5.03
Cart Cover Rice Husk Charcoal Premium Plant Ash Grain Shell Carbon Natural Organic Fertilizer for Vegetables Succulents and Flowers
$6.55
Aojilong Automotive Plastic Restorer – Revives Black Trim, Repairs Aging, Crystal Coating Finish
$28.80
Hotel Meat Warmer Lamp - Buffet Heating Light for Cafeterias and Restaurants
$5,989.00
![[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)
