This is DS18B20 Water Proof Temperature Probe – Black (1m) Original Chip which is based on the DS18B20 sensor.

It is very handy for when you need to measure something far away, or in wet conditions. Because they are digital, you don’t get any signal degradation even over a long distances.

These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter.

Features :

1. Each pin uses a heat-shrinkable tube to prevent short circuits, internal sealing glue, waterproof, moistureproof.
2. Stainless steel tube encapsulation waterproof moistureproof prevents rust.
3. Stainless steel tube 6mm diameter by 30mm long
4. Contains DS18B20 temperature sensor
5. 9 to 12-bit selectable resolution
6. Uses 1-Wire interface- requires only one digital pin for communication
7. Unique 64 bit ID burned into the chip
8. Multiple sensors can share one pin
9. Temperature-limit alarm system
10. Query time is less than 750ms
11. Without the external components, the unique single bus.
12. Note: The probe wire length may vary ±3%