The HS3003 is a highly-accurate, fully-calibrated relative humidity and temperature sensor. The high accuracy, fast measurement response time, and long-term stability, along with the small package size, makes the HS3003 ideal for a wide number of applications from portable to harsh environments.

An integrated calibration and temperature compensation logic provides fully corrected RH and T values via a standard I²C output. The measured data is internally corrected and compensated for accurate operation over a wide range of temperature and humidity levels–user calibration is not required.


  • RH accuracy: ±2.8% RH typical
  • Fast RH response time (typical 6 seconds)
  • Temperature sensor accuracy: ±0.2°C typical (-10 to +80°C)
  • 14-bit resolution: 0.01% RH (typical)
  • Low power consumption: 1.0µA average (one RH+T measurement per second, 8-bit resolution, 1.8V supply)
  • Extended supply voltage: 2.3V to 5.5V


Title language Type Format File Size Date
Datasheets & Errata
star HS300x Datasheet Datasheet PDF 404 KB
Application Notes & White Papers
HS300x Custom I2C Address Programming Application Note PDF 76 KB
PCN# : TB1911-01 Change the Quantity per Reel Product Change Notice PDF 114 KB
Sensing Technologies and Sensor Solutions Overview Overview PDF 5.75 MB
Relative Humidity Sensor Family Overview Overview PDF 750 KB

select_allSoftware & Tool Pages

Title Type Description Company
Sensor Software Sensor Middleware (FIT module and FSP module) and sample software packages that enable control and data acquisition for Renesas sensor products.

memoryBoards & Kits

Part Number Title Type Company
SDAH01 Relative Humidity Sensor Evaluation Kit Evaluation Renesas
SDAH02 Portable Relative Humidity and Temperature Sensing System Evaluation Renesas

printNews & Additional Resources