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    • Home
    • Environmental Sensors
      • Humidity Sensors
        • Digital Humidity Sensor SHT4x (RH/T)
        • Digital Humidity Sensor SHT3x (RH/T)
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      • CO2 Sensor STC31

        The most efficient way to measure high CO2 concentrations

        The STC31 is a chip-sized gas concentration sensor for high range, accurate CO2 measurements designed for high-volume production. The sensor is based on a revolutionized thermal conductivity measurement principle, which results in superior repeatability and long-term stability. This makes the STC31 the perfect choice for applications where reliability is key.

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      • Evaluation Kit SEK-Flow Sensing
      • Product Highlight

        Evaluation kit for the single-use liquid flow sensor LD20-2600B

        The LD20-2600B single-use liquid flow sensor for fast, precise and reliable measurements of the lowest flow rates in biomedical applications was successfully launched three years ago. The evaluation kit for this OEM liquid flow sensor can now also be purchased online via Sensirion's distribution network.

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        Experts for Smart Sensor Solutions

        Sensirion's sensors are used in a wide range of markets and different applications. Our high-quality environmental and flow sensors and sensor solutions improve energy efficiency and sustainability. They increase our safety, support our health and raise the quality of life. 

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    • Digital Humidity Sensor SHTW1 (RH/T) (End of Life)

    Digital Humidity Sensor SHTW1 (RH/T) (End of Life)

    Warning Image

    End of Life (EOL)

    SHTW1 is replaced by SHTW2.
    SHTW1 has reached its end of life and is not available anymore.

    The digital SHTW1 humidity sensor is the result of Sensirion’s pursuit of consistent size reductions in our sensors. This chip-scale package humidity sensor is only one-seventh of the size of a comparable DFN humidity sensor and has a tiny footprint of 1. The SHTW1 humidity sensor is a digital humidity sensor in a wafer-level chip-scale package (WLCSP). This type of package opens up a new category of ultra-small humidity sensors, which are suitable for applications with the tightest space constraints. 

    The SHTW1 is designed especially for high-volume consumer electronics applications. The sensor is based on Sensirion’s CMOSens® technology, which offers a complete sensor system on a single chip, consisting of a capacitive humidity sensor, a band-gap temperature sensor, analog and digital signal processing, A/D converter, calibration data memory, and a digital communication interface supporting I2C fast mode.

    The humidity sensor covers a humidity measurement range of 0 to 100 %RH and a temperature measurement range of –30°C to 100°C with a typical accuracy of ±3 %RH and ±0.4°C. The operating voltage of 1.8 V and the low power consumption make the SHTW1 humidity sensor suitable for wearable applications running on the tightest power budgets. With the industry-proven quality and reliability of Sensirion’s humidity and temperature sensors and constant accuracy over a large measurement range, the SHTW1 humidity sensor offers an unprecedented price-performance ratio. Tape and reel packaging together with its suitability for standard SMD assembly processes make the SHTW1 predestined for high-volume applications.


    Features

    InterfaceI²C
    Supply voltage1.8 V
    Power consumption2µW (at 1 reading per second in low power mode)
    Measuring range (RH)0 - 100 % relative humidity
    Measuring range (T)-30 to +100°C (-22 to +212°F)
    Response time (RH)8s (tau63%)
    Package typeWafer-Level-Chip-Scale-Package (WLCSP)

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    Here you can find all documents of Sensirion's humidity sensors for download.


    Accuracy Limits for Relative Humidity and Temperature

    Sensirion Humidity SHTW1C1 Diagram
    Sensirion Humidity SHTW1C1 Diagram

    Related Products

    Sensirion Humidity Sensors SHTW2

    Digital Humidity Sensor SHTW2 (RH/T) (NRND)

    The ultra-small, digital 1.8 V SHTW2 humidity sensor convinces with its low power consumption and proven performance. Therefore it opens up countless opportunities for the Internet of Things.

    Sensirion Humidity Sensors SHTC1

    Digital Humidity Sensor SHTC1 (RH/T)

    The SHTC1 humidity sensor has become the standard for applications in consumer electronics. The 2 mm x 2 mm DFN package offers an ideal trade-off between robustness, ease of use and size.

    Sensirion Humidity Sensors SHT3x

    Digital Humidity Sensor SHT3x (RH/T)

    The SHT3x humidity sensor is the established industry standard thanks to its performance, range of variants, and features.

    Sensirion Humidity Sensors SHT7x

    Digital Humidity Sensor SHT7x (RH/T) (End of Life)

    The easy replaceability and low power consumption make the digital pin-type SHT7x humidity sensor series the ultimate choice for even the most demanding applications.

    Technical Documents

    • Datasheet SHTW1

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