SKU: SENS-3403
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Adafruit Sensirion SHT41 Temperature & Humidity Sensor - I2C, STEMMA QT/Qwiic

₹1,009.00 (Inclusive of all taxes)
Out of Stock

The Adafruit Sensirion SHT41 is a high-precision digital temperature and humidity sensor module featuring an I2C interface and STEMMA QT/Qwiic connectors for solderless integration with Arduino, Raspberry Pi, ESP32, and other 3.3V/5V microcontroller platforms.

Features

  • High Accuracy: ±1.8% RH (typical) and ±0.2°C (typical) temperature accuracy.
  • Wide Operating Range: Measures 0–100% RH and -40°C to 125°C.
  • Ultra-Low Power: 0.4 μA average current at 1 Hz; 80 nA in idle mode.
  • Robust Interface: I2C communication with CRC checksum, compatible with 3.3V and 5V logic.
  • Plug-and-Play Ready: Features STEMMA QT/Qwiic connectors for solderless prototyping.

Out of stock

Description

The SHT41 sensor from Sensirion utilizes a CMOSens® chip technology that integrates a capacitive polymer humidity sensor and a band-gap temperature sensor on a single silicon die. This monolithic design ensures high signal quality, minimal thermal hysteresis, and excellent long-term stability. The sensor’s signal conditioning, analog-to-digital conversion, and calibration data are handled internally, providing a fully calibrated, linearized digital output.

Engineered for reliability, the SHT41 is fully functional in condensing environments and is qualified to JEDEC JESD47 standards, offering NIST-traceable accuracy. Its low-power architecture makes it ideal for battery-powered monitoring systems, while the I2C fast-mode-plus interface enables rapid data acquisition with integrated data integrity checks.

Key Features

  • High-Precision Sensing: Delivers industry-leading accuracy for humidity and temperature measurement.
  • Extended Environmental Range: Operates across the full humidity spectrum and extreme temperatures from -40°C to 125°C.
  • Optimized Power Management: Ultra-low average and idle currents enable multi-year operation on small batteries.
  • Robust Digital Communication: I2C interface with CRC checksum ensures reliable data transfer in electrically noisy environments.
  • Durable Construction: Qualified for industrial reliability and performance in condensing atmospheres.
  • Developer-Friendly Design: STEMMA QT/Qwiic connectors enable rapid prototyping without soldering.
  • High-Value Build: Combines Sensirion's proven sensor technology with Adafruit's accessible module design.

Applications

  • Precision environmental monitoring in HVAC and building automation systems.
  • Data logging for climate-controlled storage, museums, and archives.
  • Battery-powered wireless sensor nodes for agricultural and weather stations.
  • Condition monitoring in industrial process control and manufacturing.
  • Indoor air quality (IAQ) assessment and smart home automation.

Technical Specifications

Item TypeTemperature & Humidity Sensor Module
Manufacturer Part NumberSHT41
InterfaceI2C (Fast Mode Plus)
Supply Voltage3.3V to 5V DC
Humidity Range0 to 100% RH
Humidity Accuracy (Typical)±1.8% RH (25-75% RH)
Temperature Range-40°C to +125°C
Temperature Accuracy (Typical)±0.2°C (0-75°C)
Average Current Consumption0.4 μA @ 1 Hz measurement rate
Idle Current80 nA
Connector TypeSTEMMA QT / Qwiic (JST SH 4-pin)
Special FeaturesCRC Checksum, NIST Traceability, JEDEC JESD47 Qualified

Frequently Asked Questions

What is the operating voltage range for the SHT41 module?

The Adafruit SHT41 module is designed to operate from a 3.3V to 5V DC power supply. Its I2C logic levels are compatible with both 3.3V and 5V microcontrollers, making it versatile for use with Arduino, Raspberry Pi, ESP32, and other development boards without requiring a logic level shifter.

How do I connect this sensor to my microcontroller?

Connection is simplified via the onboard STEMMA QT / Qwiic 4-pin JST SH connector. For solderless setup, use a compatible cable to link the sensor's connector directly to a matching port on your host board. For direct wiring, the standard I2C pins (SDA, SCL, VCC, GND) are also broken out on the module's header.

Can this sensor operate in very humid or condensing conditions?

Yes. The Sensirion SHT41 chip is engineered to be fully functional in condensing environments. Its robust design and protective features allow it to deliver accurate measurements even at 100% relative humidity, making it suitable for applications like greenhouses, humidifiers, or drying processes.

What is the typical power consumption for battery-powered projects?

The SHT41 is extremely power-efficient. At a 1 measurement per second rate, it consumes an average current of only 0.4 microamps. In idle (sleep) mode between measurements, the current drops to just 80 nanoamps. This ultra-low consumption profile is ideal for long-term, battery-powered data loggers.

Does the sensor require calibration?

No. The Sensirion SHT41 is a fully factory-calibrated digital sensor. It outputs calibrated, linearized digital values via the I2C interface. The integrated calibration data and onboard signal processing ensure accurate readings out of the box, with no user calibration required.

Package Includes

  • 1 x Adafruit Sensirion SHT41 Temperature & Humidity Sensor Module

Additional Information

Weight 0.01 kg
Dimensions 13 × 7 × 2 cm