Digital Humidity and Temperature Sensors (RH&T) - Overview

Sensirion’s family of relative humidity and temperature sensors have become established as the industry standard - mainly due to their high performance and integration (CMOSens® Technology) in a miniature format. The capacitive humidity and temperature sensors provide digital and fully calibrated output which allows for easy integration without the need for additional calibration. The excellent long term stability has been very well perceived and the cutting edge low energy consumption is unachieved and makes them the right choice for any remote application.

The digital humidity sensors are provided in different packaging types: SMD type (SHT1x series), pin type (SHT7x series) and the new DFN type (SHT2x series). The SHT1x and SHT2x  are reflow solderable while pin type humidity sensors are used for devices where flexible integration is crucial or easy exchange is necessary. The three series are subdivided further according to different accuracy levels of humidity reading. Additionally, Sensirion provides the temperature only version STS21.

Any application deserves a specific type - the following table shall help to make the right choice. For detailed specification please refer to respective datasheets.

Humidity and Temperature Sensor		Packaging	Max. RH tolerance*	Max. T tolerance*	Sensor Output
SHT10		SMD	±4.5%RH	±0.5°C	Digital Sbus
SHT11		SMD	±3%RH	±0.4°C	Digital Sbus
SHT15		SMD	±2%RH	±0.3°C	Digital Sbus
SHT21		DFN	±3%RH	±0.4°C	I2C, PWM, SDM
SHT25		DFN	±2%RH	±0.3°C	I2C
SHT71		Pins	±3%RH	±0.4°C	Digital Sbus
SHT75		Pins	±1.8%RH	±0.3°C	Digital Sbus
STS21		DFN	-	±0.3°C	I2C

*For details see respective datasheets. 

For customized high-volume OEM humidity sensor solutions, please contact Sensirion directly.

     SHT1x and SHT2x sensors

     SHT7x sensor

	Humidity and Temperature Products
	- Humidity Sensor SHT10
	- Humidity Sensor SHT11
	- Humidity Sensor SHT15
	- Humidity Sensor SHT21
	- Humidity Sensor SHT25
	- Humidity Sensor SHT71
	- Humidity Sensor SHT75
	- Temperature Sensor SHT21
	Document Center
	- Datasheet SHT1x
	- Datasheet SHT7x
	- Datasheet SHT21
	- Datasheet SHT25
	- Datasheet STS21
	Technology