The HS3002 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 HS3002 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: ±1.8% 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



PDF 356 KB Datasheet
PDF 131 KB Application Note
PDF 3.64 MB 日本語 Application Note
PDF 301 KB Product Change Notice
PDF 368 KB Product Change Notice
PDF 129 KB Application Note
PDF 189 KB Application Note
PDF 600 KB 日本語 Overview
PDF 192 KB Application Note
PDF 99 KB Product Change Notice
PDF 76 KB Application Note
PDF 114 KB Product Change Notice
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Design & Development

Software & Tools

Sample Code

Sample Code

Title Type Date Date
ZIP 2.25 MB
Application: IoT Applications
Function: Application Example, Communication Interface, Driver or Library
Sample Code
ZIP 3.74 MB
Application: IoT Applications
Compiler: CC-RL, CC-RX, ICCRL78 Function: Application Example, Communication Interface, Driver or Library IDE: CS+, e2 studio, IAR EWRL78
Sample Code
ZIP 2.93 MB
Application: Consumer Electronics, Industrial
Compiler: CC-RX, GNURX, ICCRX Function: Analog, Communication Interface, Driver or Library, OS IDE: CS+, e2 studio, IAR EWRX
Sample Code
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Boards & Kits

Boards & Kits



Relative Humidity Sensors (RH Sensors)

A brief introduction to Renesas’ relative humidity sensors that offer high accuracy and fast measurement response times, enabling customers to improve overall system performance and feedback control. The humidity sensors feature excellent long-term stability as a result of a robust silicon carbide construction and an innovative design, improving useful lifetime and lowering effective cost.