SKU: SENS-3504
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Sensirion SHT41-AD1B-R2 Humidity & Temperature Sensor, 0 to 100%RH, −40°C to +125°C, ±1.8%RH, I2C Interface

₹249.00 (Inclusive of all taxes)
Out of Stock

The Sensirion SHT41-AD1B-R2 is a fully calibrated, digital humidity and temperature sensor with an I2C interface, compatible with 3.3V systems like Arduino, Raspberry Pi, and ESP32. It provides high-accuracy environmental sensing for a wide range of RH and temperature conditions.

Features

  • High-Accuracy Humidity Sensing: Delivers ±1.8% RH typical accuracy for reliable environmental data.
  • Wide Operating Range: Functions from -40°C to +125°C and 0 to 100% RH for demanding applications.
  • Integrated Digital I2C Interface: Simplifies wiring and communication with microcontrollers and single-board computers.
  • Ultra-Low Power Operation: Optimized for battery-powered and portable monitoring devices.
  • Robust DFN Package: Features a compact, reflow-solderable housing suitable for automated PCB assembly.

Out of stock

Description

The SHT41-AD1B-R2 from Sensirion utilizes a proprietary CMOSens® technology, which integrates a capacitive polymer humidity sensor and a band-gap temperature sensor on a single CMOS chip. This monolithic integration ensures excellent signal quality, minimal thermal hysteresis, and outstanding long-term stability. The sensor outputs fully calibrated, digital data via a standard I2C interface, eliminating the need for external signal conditioning.

Designed for harsh environments, the sensor operates across an extended temperature and humidity range. Its low power consumption and fast response time make it ideal for high-volume applications requiring precise environmental monitoring. The DFN-4 surface-mount package is optimized for reflow soldering processes, facilitating efficient manufacturing.

Key Features

  • CMOSens® Technology: Combines sensor element, signal processing, calibration data, and digital interface on a single chip for superior reliability.
  • Fully Factory Calibrated: Provides precise, ready-to-use digital output without requiring user calibration.
  • Excellent Long-Term Stability: Engineered for minimal drift over time, ensuring consistent measurement accuracy.
  • Wide Supply Voltage Range: Operates from 1.08V to 3.6V DC, compatible with low-voltage logic systems.
  • Fast Measurement & Response: Enables high sampling rates for dynamic environmental monitoring.
  • Automatic Sleep Mode: Features ultra-low power consumption between measurements to maximize battery life.
  • High-Value Build: Offers Sensirion's renowned quality and performance in a compact, cost-optimized package.

Applications

  • HVAC system control and indoor air quality monitoring for energy efficiency.
  • Portable data loggers and environmental monitoring stations for field research.
  • Industrial process control and condition monitoring in manufacturing facilities.
  • Smart home and building automation systems for climate management.
  • Battery-powered IoT devices and wireless sensor networks.

Technical Specifications

Manufacturer Part NumberSHT41-AD1B-R2
BrandSensirion
Sensor TypeHumidity & Temperature
Humidity Range0 to 100 %RH
Humidity Accuracy±1.8 %RH (typical)
Temperature Range-40°C to +125°C
Supply Voltage1.08 to 3.6 V DC
Communication InterfaceI2C (Digital)
Output TypeDigital
Package TypeDFN-4 (Dual Flat No-lead)
CalibrationFully Factory Calibrated
Long-Term StabilityExcellent

Frequently Asked Questions

What is the operating voltage range for the SHT41-AD1B-R2 sensor?

The SHT41-AD1B-R2 operates from a supply voltage of 1.08V to 3.6V DC. This makes it directly compatible with common 3.3V microcontroller systems like ESP32, STM32, and Raspberry Pi without requiring a level shifter.

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

The sensor uses a standard I2C protocol. Connect the SDA and SCL pins to your microcontroller with appropriate pull-up resistors (typically 4.7kΩ). The device address is factory-set, and detailed communication commands for initiating measurements and reading data are provided in the official Sensirion datasheet.

Is the SHT41 sensor pre-calibrated, and does it require periodic recalibration?

Yes, the SHT41-AD1B-R2 is fully factory-calibrated, and the calibration data is stored digitally on the chip. It provides accurate readings out-of-the-box. Due to its excellent long-term stability, it typically does not require user recalibration under normal operating conditions.

What is the physical package, and how is it mounted?

The sensor comes in a compact DFN-4 surface-mount package. It is designed for reflow soldering onto a PCB. Proper PCB pad design and soldering profile as specified in the datasheet are required for reliable electrical and mechanical connection.

Package Includes

  • 1 x SHT41-AD1B-R2 Humidity & Temperature Sensor

Additional Information

Weight 0.02 kg