Amazon.co.jp: FS304-SHT30/31/35 Temperature and Humidity Sensor, Soil Digital Temperature & Humidity Sensor Probe, Dustproof Temperature & Humidity Sensor, Stainless Steel Plastic Housing, I2C Output, Temperature Monitoring, Moisture Monitoring ...
Nettigo: Sensirion SHT30 - humidity and temperature sensor with I2C interface [Yā nǔ shén]