Renesas’ humidity sensors offer high accuracy, lowest power with the fastest measurement response time of comparable devices currently on the market.  

The HS300x and HS400X families of relative humidity sensors feature a ±1.5% RH accuracy, both digital and analog outputs covering supply voltages of 1.8V to 5.5V and waterproof IP67 options available. The HS400X offers the lowest power consumption on the market with an average of 1.0µA average (one RH + T measurement per second)

This is especially important for battery-powered applications where lower power consumption equates to longer battery life. In addition to high-accuracy and fast response times, the HS300x and HS400X family features excellent long-term stability of 0.1% RH per year as a result of a robust silicon carbide construction and an innovative design. This improves useful lifetime and lowers effective cost.

Download: Relative Humidity Sensor Family Overview (PDF | English, 日本語)

About Humidity Sensor ICs (RH Sensors)

A humidity sensor IC (also known as an RH sensor or humidity detector) is a device used to measure relative humidity (RH) within a system and digitally report that information back to the system. Several factors influence the quality of a humidity sensor, including accuracy, response time, resolution, and year-over-year drift. Renesas' humidity sensors feature industry-leading specifications, helping to solve product design challenges and giving customers a competitive advantage.

Featured Humidity Sensor Products

Part Number Description Datasheet Order
HS4101 Relative Humidity and Temperature Sensor, Analog Output, ±1.5% RH pdf_icon_for_table.png Buy Now
HS4001 Relative Humidity and Temperature Sensor, Digital Output, ±1.5% RH pdf_icon_for_table.png Buy Now
HS3101 Relative Humidity and Temperature Sensor with Membrane pdf_icon_for_table.png Buy Now
HS3001 High-Performance Relative Humidity and Temperature Sensor pdf_icon_for_table.png Buy Now


Title Type Date
PDF4.38 MB日本語
PDF19.79 MB日本語
PDF600 KB日本語
HS4xxx Relative Humidity Sensors Overview

Learn about Renesas’ HS4XXX family of relative humidity and temperature sensors provide high accuracy, fast measurement response time, and ultra-low power consumption in a small package size, making them ideal for a wide number of applications ranging from portable devices to products designed for harsh environments

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