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Waterproof DS18B20 Digital Temperature Sensor for Arduino (IP68, -10°C to +85°C)
- $6.70 5+ items
- $6.20 10+ items
- $5.50 50+ items
Introduction
This product is the waterproof version of the DS18B20 temperature sensor, specifically designed for temperature measurements in distant or humid environments. This temperature & humidity sensor has a wide temperature range of -55°C to 125°C, but it is recommended to keep the included PVC jacketed cable below 100°C to ensure optimal performance and durability.
The DS18B20 waterproof temperature sensor is a digital sensor that maintains signal integrity even over long distances. It utilizes a 1-Wire interface, connecting to a central microprocessor through a single wire (along with a ground wire).
Note: This sensor includes the probe with bare wires only. For a solderless connection with a pluggable terminal adapter, please check the Gravity: Waterproof DS18B20 Sensor Kit.
Each DS18B20 temperature sensor has a unique silicon serial number, useful for verifying its authenticity and enabling the connection of multiple sensors on a single 1-Wire bus. This feature facilitates the installation of temperature sensors in various locations for applications like indoor temperature monitoring, smart home integration, object temperature detection, greenhouse farming, and more.
Specification
- Usable with 3.0V to 5.5V power/data
- ±0.5°C Accuracy from -10°C to +85°C
- Usable temperature range: -55 to 125°C (-67°F to +257°F)
- 9 to 12 bit selectable resolution
- Uses 1-Wire interface- requires only one digital pin for communication
- Unique 64 bit ID burned into the chip
- Multiple sensors can share one pin
- Temperature-limit alarm system
- Query time is less than 750ms
- 3 wires interface:
- Type A
- Red wire - VCC
- Black wire - GND
- Yellow wire - DATA
- Type B (Recently there's a series of sensors using this pin mapping. Sorry for the inconvenience.)
- Red wire - VCC
- Yellow wire - GND
- Green wire - DATA
- Type A
- Stainless steel tube 6mm diameter by 35mm long
- Cable diameter: 4mm (0.16)
- Length: 95cm (37.4")
Documents
Shipping List
- Waterproof DS18B20 Digital temperature sensor x1
(Note: Terminal adapter not included. Please solder a 4.7k resistor between VCC and Data for usage, or choose the Gravity Kit version for plug-and-play.)
Resource
Review
Feb 26, 2026
I use this Sensor in my DIY PH Doser project, and they serve their purpose :)
Nov 05, 2025
Good working stable as intended
Oct 30, 2025
Really Good, product working well