CC2D33 - Chip Cap 2 Digital (I2C) 3% Acccuracy 3.3v

CHIP: C2D3 EG502 

Product page:  Telaire ChipCap 2-SIP

Datasheet: Telaire ChipCap 2-SIP | Humidity and Temperature Sensor - Datasheet

Application guide: Telaire ChipCap2 | Humidity and Temperature Sensor - Application Guide

Amazon Price: 10$