DS18B20 Waterproof Temperature Sensor 3 Wire 100cm
The DS18B20 waterproof temperature sensor is a highly reliable digital thermometer that communicates using a 1-Wire interface, allowing multiple sensors to be connected using only a single data line. It provides precise temperature readings with programmable resolution, making it ideal for applications where accurate and stable measurements are required. The waterproof stainless-steel probe and long cable (typically 1 meter) make it suitable for harsh environments such as liquids, outdoor setups, and humid conditions.
This sensor operates over a wide temperature range and can be powered either externally or directly from the data line (parasite power mode), reducing wiring complexity. Each sensor has a unique 64-bit serial code, enabling multiple sensors to work on the same bus without conflict. Due to its robustness and ease of integration with microcontrollers like Arduino and Raspberry Pi, it is widely used in IoT systems, home automation, and industrial monitoring solutions.
Features:
- Digital temperature sensing with high accuracy.
- 1-Wire communication (only one data pin required).
- Waterproof stainless steel probe.
- Unique ID for multiple sensor support on one bus.
- Programmable resolution (9–12 bit).
- No external components required.
- Supports parasite power mode.
- Long cable for flexible installation.
- Stable performance in harsh environments.
Specifications:
| Specification | Detail |
|---|---|
| Supply Voltage: | 3 V to 5.5 V |
| Accuracy: | +/- 0.5°C |
| Temperature Range (Measurement): | -10 °C to 85 °C (+/- 0.5°C) |
| Temperature Range (Operation): | -55 °C to 125 °C |
| Resolution: | 9 to 12 bit |
| Interface: | 1-Wire |
| Unique Identifier: | 64-bit |
| Question Time: | < 750 ms |
| Cable Diameter: | 4 mm |
| Cable Length: | 100 cm |
| Wire Interface: | 3 wires |
Pinout:
| Pin | Name | Description |
|---|---|---|
| Black | GND | Ground |
| Yellow | DQ | Data (1-Wire Communication) |
| Red | VCC | Power Supply |
Applications:
- Aquarium Temperature Monitoring.
- Weather Stations.
- Industrial Temperature Sensing.
- HVAC Systems.
- Home Automation Projects.
- Environmental Monitoring.
- IoT-Based Temperature Control.
Package Contents:
- 1x DS18B20 Waterproof Temperature Sensor 3 Wire 100cm