Even the humidity & temperature sensors can be „3G“

±2% accuracy in a whole range of relative humidity measurement - that´s just one of several improvements brought by the third generation of miniature calibrated sensors from company Sensirion.

This is an archive article published 02/04/2016. Some information may no longer be up to date and in line with the current state. Please contact us in case of interest.

Even the actual series like SHT1x and SHT2x belong to a top in this segment. Forthcoming series SHT3x (SHT30, SHT31 and soon also SHT35) addresses mainly those of you, requiring maximum accuracy even in limit values (humidity below 10% and above 90%), miniature dimensions and ultra low power consumption. So a main difference of a new SHT31 compared to SHT21 is, that a typical +-2% is maintained in a whole range. Together with a precise temperature measurement in element we still have a possibility to simply compute a dew point, what´s one of the key parameters for ventilation control (HVAC, heat recovery). If it´s “only” necessary to guide a humidity not to exceed certain level, then you´ll probably also use the output „Alert“ pin, able to start interrupt in a host MCU for instance or directly control further devices. Output of the SHT3x sensor is the linearized value, which can be easily transformed to a final value (%RH, °C).

SHT31 is available in 2 versions - SHT31-DIS-B with a digital output via well-proven I2C bus (2 selectable addresses) and also in a version SHT31-ARP-B with a linearized analogue (proportional) output. That´s why SHT31-ARP-B is an interesting alternative for direct processing in analogue circuits, as it contains 2 independent outputs with output voltage of 10-90% Vdd, responding to 0-100%RH and -45 to +130°C temperature. Digital output version also features wide possibilities of setting regarding measurement frequency, communication speed and other parameters.

Detailed information will provide you SHT3x-ARP and SHT3x-DIS datasheets. Comparison of particular series will provide you the „Sensirion_Humidity" flyer.

In case of interest please contact us at info@soselectronic.com.

Advantages / Features:

  • miniature calibrated humidity&temperature sensors
  • new improved generation
  • excellent reliability and long-term stability
  • wide supply voltage range of 2.4-5.5V
  • digital (I2C) or linearized analogue output
  • technology proven by 15-year usage in industry
  • extremely low power consumption
  • high resistance to external disturbances (EMI/EMC)

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Main products


SHT31-DIS-B (SHT31-DIS-B2.5kS) SENSIRION  
SHT31-DIS-B (SHT31-DIS-B2.5kS)

Humidity & Temperature Sensor I2C DFN8

Humidity and Temperature Sensors

Ord. No.: 182220
Manufacturer: SENSIRION
in stock 4691 pcs
(07/29/2022: 2500 pcs)
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100 pcs+
2,30 €
2,26 €
2,22 €
2,17 €
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Additional products


SHT31-ARP-B (SHT31-ARP-B2.5kS) SENSIRION  
SHT31-ARP-B (SHT31-ARP-B2.5kS)

Humidity & Temperature Sensor Analog 10...90% VDD DFN8

Humidity and Temperature Sensors

Ord. No.: 182219
Manufacturer: SENSIRION
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SHT30-ARP-B (SHT30-ARP-B2.5kS) SENSIRION  
SHT30-ARP-B (SHT30-ARP-B2.5kS)

Humidity & Temperature Sensor Analog 10...90% VDD DFN8

Humidity and Temperature Sensors

Ord. No.: 186950
Manufacturer: SENSIRION
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SHT30-DIS-B (SHT30-DIS-B2.5kS) SENSIRION  
SHT30-DIS-B (SHT30-DIS-B2.5kS)

Humidity & Temperature Sensor I2C DFN8

Humidity and Temperature Sensors

Ord. No.: 186949
Manufacturer: SENSIRION
in stock 656 pcs
(07/29/2022: 2500 pcs)
1 pcs+
10 pcs+
50 pcs+
100 pcs+
1,73 €
1,70 €
1,67 €
1,63 €
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