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$