This is a Waterproof DS18B20 Temperature Sensor/Thermometer. The probe uses original DS18B20 temperature sensor chip. It is waterproof, moisture-proof and anti-rust with the high-quality stainless steel tube encapsulated. No other components, unique single bus interface.
Power Supply Range: 3.0V to 5.5V
Adjustable Resolution: 9 - 12
Operating Temperature Range: -55°C to 125°C
Output lead: Red (VCC), Black (GND), Yellow (DATA)