The Elecrow Crowtail – Digital Temperature Sensor 2.0 is a high precision, easy‑to‑use digital temperature module suitable for a wide range of applications, from IoT and environmental monitoring to consumer electronics and industrial systems. Built around the TMP102 temperature sensor IC, this module communicates over I²C/SMBus (a two‑wire serial interface), providing stable, digitized temperature readings with high resolution and considerable thermal range. Because it outputs digital data, there is less susceptibility to interference compared to analog sensors, and it is straightforward to integrate with Arduino, Raspberry Pi, and other microcontroller platforms using Crowtail interfaces. The module can resolve temperature changes as small as 0.0625 °C, enabling fine granularity in measurement. It is specified for operation over a wide ambient temperature range (−40 °C to +125 °C), making it capable of handling both cold and hot environments. Supply voltage for the core sensor is 1.4 V to 3.6 V, but via its Crowtail interface it is compatible with 5 V systems, ensuring ease of use. Its accuracy is ±0.5 °C in the range from −25 °C to +85 °C, which covers most practical usage scenarios. The module is compact (≈20.0 × 20.0 × 9.8 mm) and comes with a Crowtail 4‑pin cable, simplifying wiring and deployment in projects.