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Description: Digital humidity and temperature sensor
Temperature measuring principle: PTAT (integrated)
Temperature measuring range: -40...+125 °C
Accuracy temperature: ±0.2 °C (0...+60 °C)
Response time temperature: T63: < 5 s
Long-term drift temperature: < 0.05 K/a
Reproducibility temperature: ±0.1 K
Temperature resolution: 0.015 °C
Humidity measuring principle: Capacitive polymer humidity sensor
Humidity measuring range: 0...100% RH
Response time humidity: T63: < 4 s
Accuracy humidity: ±1.8% RH at +23 °C (0...90% RH)
Long-term drift humidity: < 0.5% RH/a
Reproducibility humidity: 0.2% RH
Humidity resolution: 0.03% RH
Humidity linearity error: < ±1% RH
Hysteresis: < ±1% RH
Tk residual error: 0.05% RH/K (at 0...+60 °C)
Dimensions: (LxWxH) 10.2 x 5.1 x 1.8 mm
Connection: SIL connectors, pluggable, RM 1.27 mm
Digital interface: I²C, address 0x28 or alternative address
Operating voltage: 2.7...5.5 V DC
Power consumption: typ. < 22 µA at 1 Hz measuring rate, 850 µA maximum
Weight: 0.0006 kg

Precision, reliability and long-term stability are the main characteristics for our digital humidity and temperature sensors with I²C interface.

With its dimensions of only 10,2 x 5,1 x 1,8 mm, the digital humidity sensor is mechanically robust, chemically resistant and dew resistant. That means it has the widest application range for its size and an excellent price-performance ratio - with the highest quality.

Precisely calibrated the HYT271 supplies an accuracy of ±1.8% RH as well as ±0.2 °C – ideally suited for demanding mass applications, industrial handheld measuring devices, precise humidity transducers and PCLOG.

Title File name File Size File extension Date Download
Datasheet digital humditiy-temperature-sensor HYT271-S 0381 0018 Datasheet_digital_humidity-temperature-sensor_HYT271-S_0381_0018 1104kb pdf 2025-07-02 05:47
Datenblatt digitaler Feuchte-/Temepratursensor HYT271-S 0381 0018 Datenblatt_digitaler_freuchte-temperatursensor_HYT271-S_0381_0018 1094kb pdf 2025-07-02 05:47
I2C-protocol I2C-protocol 787kb zip 2025-08-11 07:45
Description: Digital humidity and temperature sensor
Temperature measuring principle: PTAT (integrated)
Temperature measuring range: -40...+125 °C
Accuracy temperature: ±0.2 °C (0...+60 °C)
Response time temperature: T63: < 5 s
Long-term drift temperature: < 0.05 K/a
Reproducibility temperature: ±0.1 K
Temperature resolution: 0.015 °C
Humidity measuring principle: Capacitive polymer humidity sensor
Humidity measuring range: 0...100% RH
Response time humidity: T63: < 4 s
Accuracy humidity: ±1.8% RH at +23 °C (0...90% RH)
Long-term drift humidity: < 0.5% RH/a
Reproducibility humidity: 0.2% RH
Humidity resolution: 0.03% RH
Humidity linearity error: < ±1% RH
Hysteresis: < ±1% RH
Tk residual error: 0.05% RH/K (at 0...+60 °C)
Dimensions: (LxWxH) 10.2 x 5.1 x 1.8 mm
Connection: SIL connectors, pluggable, RM 1.27 mm
Digital interface: I²C, address 0x28 or alternative address
Operating voltage: 2.7...5.5 V DC
Power consumption: typ. < 22 µA at 1 Hz measuring rate, 850 µA maximum
Weight: 0.0006 kg

Precision, reliability and long-term stability are the main characteristics for our digital humidity and temperature sensors with I²C interface.

With its dimensions of only 10,2 x 5,1 x 1,8 mm, the digital humidity sensor is mechanically robust, chemically resistant and dew resistant. That means it has the widest application range for its size and an excellent price-performance ratio - with the highest quality.

Precisely calibrated the HYT271 supplies an accuracy of ±1.8% RH as well as ±0.2 °C – ideally suited for demanding mass applications, industrial handheld measuring devices, precise humidity transducers and PCLOG.

Title File name File Size File extension Date Download
Datasheet digital humditiy-temperature-sensor HYT271-S 0381 0018 Datasheet_digital_humidity-temperature-sensor_HYT271-S_0381_0018 1104kb pdf 2025-07-02 05:47
Datenblatt digitaler Feuchte-/Temepratursensor HYT271-S 0381 0018 Datenblatt_digitaler_freuchte-temperatursensor_HYT271-S_0381_0018 1094kb pdf 2025-07-02 05:47
I2C-protocol I2C-protocol 787kb zip 2025-08-11 07:45

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FAQ

Der Versand unserer Produkte erfolgt per DPD gemäß ICC-Incoterms®2010: 

EXW B+B Thermo-Technik GmbH Donaueschingen Incoterms®2010


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Sofortüberweisung:

Germany and Austria


Rechnung (Netto 30 Tage):

Deutsche Firmenkunden, 

Schweiz

Frequently asked questions & answers

We generally offer standard shipping via DPD. You can also pick up your order yourself or ship with your own tracking number. You can select the option you prefer during the ordering process.

You find more information about this topic on our rights of withdrawal page.

You can pay with PayPal, credit card (VISA and MaserCard), payment in advance, Sofortüberweisung (direct banking) and in some cases invoice. You can find more information on the page shipping and payment.

Yes, at B+B we can manufacture customised items for you with a minimum order value of €500.00.

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Certifications

Thank to the latest research, development and manufacturing technologies, as well as DIN EN ISO 3001:2015 and DIN EN 61340-5-1 certifications, we produce our products in accordance with the highest quality standards.

Calibration service

The B+B calibration laboratory is accredited by the German Accreditation Body (DAkkS) in accordance with DIN EN ISO/IEC 17025:2018 for the thermodynamic measurement parameters of temperature and relative humidity.

Individual manufacturing

You tell us your application and we will supply you with the right product for measurement and monitoring. We place particular emphasis on close cooperation in order to guarantee optimal product development in live with your requirements.

Location

B+B Thermo-Technik GmbH is based in the town Donaueschingen south-west Germany. From here, B+B quality products are distributed worldwide.