Sensirion SHT40I-AD1F-R2 Humidity & Temperature Sensor - I2C Interface, NIST-Traceable
Sensirion SHT40I-AD1F-R2 Humidity & Temperature Sensor - I2C Interface, NIST-Traceable - Image 2
SKU: SENS-1007
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Sensirion SHT40I-AD1F-R2 Humidity & Temperature Sensor - I2C Interface, NIST-Traceable

₹289.00 (Inclusive of all taxes)
Out of Stock

The Sensirion SHT40I-AD1F-R2 is an industrial-grade digital humidity and temperature sensor with an I2C interface, offering high accuracy and NIST-traceable calibration for integration into embedded systems, PLCs, and industrial monitoring applications.

Features

  • High Accuracy: ±2.5% RH and ±0.3°C typical measurement precision.
  • I2C Digital Interface: Enables direct connection to microcontrollers like Arduino, Raspberry Pi, and STM32.
  • Wide Operating Range: Functions from -40°C to +125°C and 0-100% RH.
  • NIST-Traceable Calibration: Each sensor is individually calibrated per ISO/IEC 17025 standards.
  • Robust Industrial Design: Features ESD protection (2 kV HBM) and a 2.3V to 5.5V supply range.

Out of stock

Description

The SHT40I-AD1F-R2 utilizes Sensirion’s advanced CMOSens® technology, which integrates a capacitive humidity sensor and a band-gap temperature sensor on a single chip. This MEMS-based design ensures excellent long-term stability and fast response times of 4 seconds for humidity and 2 seconds for temperature.

Engineered for harsh environments, the sensor provides calibrated digital output via I2C, eliminating the need for external signal conditioning. Its robust construction and wide operating range make it suitable for demanding industrial process control, HVAC systems, and precision environmental monitoring.

Key Features

  • High-precision capacitive humidity sensing element.
  • Integrated digital temperature sensor with band-gap principle.
  • Fully calibrated digital output via I2C interface.
  • Excellent long-term stability and low hysteresis.
  • Extended operating range from -40°C to +125°C.
  • On-chip ESD protection up to 2 kV (HBM).
  • Low power consumption for battery-operated applications.
  • NIST-traceable calibration for reliable and auditable measurements.

Applications

  • Industrial HVAC and building automation control systems.
  • Precision environmental monitoring in pharmaceutical storage and logistics.
  • Data logging and condition monitoring in agricultural greenhouses.
  • Embedded sensing in automotive climate control and battery management systems.
  • Process control and quality assurance in manufacturing facilities.

Technical Specifications

Manufacturer Part NumberSHT40I-AD1F-R2
Sensor TypeHumidity & Temperature
Humidity Accuracy±2.5% RH (typical)
Temperature Accuracy±0.3°C (typical)
Humidity Range0 to 100% RH
Temperature Range-40°C to +125°C
InterfaceI2C
Supply Voltage2.3V to 5.5V DC
Operating Current21 mA (typical)
Response Time (Humidity)4 s
Response Time (Temperature)2 s
CalibrationNIST-traceable, ISO/IEC 17025
ESD Protection2 kV HBM
Dimensions (L x W)8 mm x 3 mm
Weight0.005 kg

Frequently Asked Questions

What is the operating voltage range for the SHT40I-AD1F-R2 sensor?

The sensor operates from 2.3V to 5.5V DC, making it compatible with both 3.3V and 5V logic systems commonly found in microcontrollers like Arduino, ESP32, and Raspberry Pi.

How do I communicate with this sensor using the I2C interface?

The sensor uses a standard I2C protocol. You will need to connect the SDA (data) and SCL (clock) lines to your microcontroller, along with power and ground. The sensor's I2C address can be found in the official Sensirion datasheet. No analog signal conditioning is required.

What does NIST-traceable calibration mean for this sensor?

Each SHT40I-AD1F-R2 sensor is individually calibrated, and its calibration certificate is traceable to the National Institute of Standards and Technology (NIST) through an ISO/IEC 17025 accredited laboratory. This ensures high measurement confidence and is often required for quality control and regulatory compliance in industrial applications.

Is this sensor suitable for outdoor or harsh environment use?

Yes, its extended operating temperature range of -40°C to +125°C and robust design make it suitable for harsh environments. However, for prolonged outdoor exposure, consider proper encapsulation to protect the PCB from direct moisture and contaminants, as the sensor chip itself is not housed in an IP-rated enclosure.

Package Includes

  • 1 x Sensirion SHT40I-AD1F-R2 Humidity & Temperature Sensor

Additional Information

Weight 0.005 kg
Dimensions 0.8 × 0.3 cm

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