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Grove - Temperature&Humidity Sensor (SHT40)

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Grove -Temperature&Humidity Sensor (SHT40) is a digital Humidity and Temperature Sensor which has an accuracy rate of up to ±1.8% RH and ±0.2 °C,  and an operating range of 0% to 100% RH, -40°C to +125°C. It comes with a SEEED’s standard grove l2C interface enabling developers or even beginners to easily communicate with the STH40 sensor on different hardware platforms. SHT40 is an optimized CMOSens® chip that offers reduced power consumption and improved accuracy specifications. Grove-SHT40's combined features make it an excellent choice for a wide variety of applications.

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  • 10+: $4.50



  • Accuracy Rate: It has relative humidity and temperature accuracy rate of up to ±1.8% RH and ±0.2 °C, respectively.
  • Extended operating ranges: The sensor can operate between 0 and 100% RH and -40 and 125°C.
  • Condensing environments: Fully functional in condensing or environment close to saturation. (with a variable power heater)
  • Serial Protocol: Grove I2C interface with an ultra-low-power budget, standard, fast mode, and fast mode plus l2C address sensor.
  • Stress-Test-Driven Qualification: SHT4x sensor is JEDEC JESD47 qualified.


This Grove SHT40 digital sensor is based on Sensirion's industry-proven humidity and temperature sensors. It can provide constant temperature and humidity accuracy over an extensive measurement range, making it the best price/performance ratio available. And with the grove platform, you are ready to plug and play the SHT4x sensor on any microcontroller (Arduino) or microprocessor (Raspberry Pi).

The Grove-SHT40 digital 4th generation sensor comprises an entirely new and optimized CMOSens® chip, offering lower power consumption, which makes it highly suitable for low-power and battery-supported applications. It has an operating temperature range of -40°C to +125°C, an excellent 1.8% typical relative humidity accuracy from 25 to 75%, and a 0.2 °C typical accuracy from 0 to 75 °C.

The fully calibrated Grove-SHT40 sensor offers linearized digital output and NIST traceability. And our standard Grove four-pin I2C interface makes it easy to read or communicate with integrated circuits.

Due to the high accuracy of the SHT40 sensor and the compatibility of our grove system, Grove-SHT40 is perfect for high-end industrial applications, projects for hobbyists, learning projects for beginners, etc.

What is Grove?

Grove makes it easier to connect, experiment, and simplify the prototyping process. No jumpers or soldering required. We have developed more than 300 Grove modules, covering a wide range of applications that can fulfill a variety of needs. Not only are these open hardware, but we also have open-source software.

If your development board is a Seeeduino, simply connect it to the I2C port and download a few lines of code, then you are ready to roll!

If you are looking for more other temperature sensors, don't forget to check our 9 Types of Temperature Sensors You Should Know for your environmental projects!


  • Climate Monitoring and Control
  • Cold chain data loggers
  • Smart Thermostats
  • Anti-fogging

SHT40 Sensor Specifications

Parameter Rating
Temperature accuracy rate ±0.2 ℃
Typical Humidity accuracy rate ±1.8% RH
Maximum Relative Humidity Accuracy Rate ±3.5%
Operating temperature range -40°C to 125°C
Operating Humidity range 0% to 100% RH
Grove power supply 5/3.3 volts
Serial Protocol I2C
Grove's average current supply 1.2 µA
Grove idle current 32µA
Product Dimension 20mm x 40mm


A stress level above the specified range can permanently damage the SHT40 sensor. The above is only stress ratings, and the functional operation of the device is not guaranteed under these conditions.

Typical and maximal relative humidity accuracy at 25°C (SHT40)

Typical and maximal temprature accuracy (SHT40)

Part List

Grove - Temperature&Humidity Sensor(SHT40) 1
Grove Cable 1


HSCODE 9025800090
RoHS 1





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  1. Product Quality
    from order view
    Yet another grove module to enhanced my collection with ultra low-power, high resolution temperature and humidity sensor.


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