A
Anonymous
Apr 10, 2026
Rating: 4/5
Accurate but slow
Readings are precise but take a second to update.
Description
DS18B20 Fully Waterproof Temperature Sensor, Water Temperature Sensor
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface Protocol | 1-Wire Digital |
| Temperature Range | -55°C to +125°C |
| Accuracy | ±0.5°C (-10°C to +85°C) |
| Cable Length | 1 Meter |
| Probe Material | Stainless Steel |
| Supply Voltage | 3.0V to 5.5V |
| Resolution | 9 to 12-bit Configurable |
| Waterproof Rating | IP68 |
| Wire Configuration | Red (VCC), Black (GND), Yellow (Data) |
| Compatibility | Arduino, Raspberry Pi, ESP32 |
5 reviews
A
Anonymous
Mar 29, 2026
Rating: 5/5
Essential for DIY projects
Easy to integrate with Home Assistant.
A
Anonymous
Mar 20, 2026
Rating: 5/5
Survived winter outside
Used it to monitor outdoor water barrel. Still working.
A
Anonymous
Feb 21, 2026
Rating: 5/5
Great for hydroponics
Works perfectly in my nutrient tank. No leaks so far.
A
Anonymous
Feb 12, 2026
Rating: 3/5
Cable could be longer
Works well but 1 meter is short for my setup.
5 FAQ
Q: Is it safe for drinking water?
A: The stainless steel is food grade, but please verify local regulations for your specific use.
Q: Does it work with 5V Arduino?
A: Yes, it is fully compatible with 5V logic boards like Arduino Uno.
Q: Do I need a resistor?
A: Yes, a 4.7k ohm pull-up resistor is recommended between VCC and Data.
Q: Can I cut the cable?
A: Yes, but you must reseal the connection to maintain waterproof integrity.
Q: What is the warranty period?
A: This item comes with a standard 30-day manufacturer warranty.
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