DFRobot Fermion SHTC3 Humidity & Temperature Sensor - I2C Interface

Name: DFRobot Fermion SHTC3 Humidity &amp; Temperature Sensor - I2C Interface
Brand: DFRobot
SKU: SENS-3078
Price: 609.00 INR
Availability: OutOfStock

₹609.00 (Inclusive of all taxes)

Out of Stock

The DFRobot Fermion SHTC3 is a high-precision digital humidity and temperature sensor module based on Sensirion’s SHTC3 chip, offering I2C communication and compatibility with 3.3V/5V systems like Arduino, Raspberry Pi, ESP32, and STM32.

Features

High-Accuracy Sensing: Measures 0-100% RH with ±2% accuracy and -40°C to +125°C with ±0.2°C accuracy.
Low Power Consumption: Operates at just 0.45mA, featuring a dedicated low-power measurement mode.
I2C Digital Interface: Simple two-wire communication for easy integration with microcontrollers and SBCs.
Wide Voltage Compatibility: Supports 3.3V to 5V DC power input for flexible system design.
Compact & Mountable Design: Small 14x17mm PCB with M2 mounting holes for secure installation.

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Description

The Fermion SHTC3 sensor module integrates Sensirion’s advanced SHTC3 MEMS sensor, providing reliable and stable humidity and temperature readings. It utilizes a capacitive polymer sensing element for humidity and a band-gap sensor for temperature, ensuring consistent performance across its full operational range.

Designed for seamless integration, the module includes on-board signal conditioning and level shifting, making it ready for direct connection to 3.3V or 5V logic systems. Its digital I2C output provides excellent noise immunity compared to analog sensors, ideal for data logging, environmental monitoring, and control applications.

Key Features

Based on Sensirion SHTC3 chip for proven, high-reliability performance.
Fully calibrated and temperature-compensated digital output.
Excellent long-term stability and minimal hysteresis.
Fast response time of 8 seconds (tau63%).
Compact Fermion-series form factor with standard 4-pin connector.
Robust construction suitable for a wide range of environmental conditions.

Applications

HVAC system monitoring and control for building automation.
Environmental data logging in weather stations and indoor climate monitors.
Precision agriculture and greenhouse climate management systems.
Asset conditioning monitoring during storage and transport.
Consumer appliance integration for smart dehumidifiers and air conditioners.

Technical Specifications

Manufacturer / Series	DFRobot Fermion (Sensirion SHTC3)
Operating Voltage	3.3V to 5V DC
Operating Current	0.45 mA (typical)
Communication Interface	I2C
Humidity Measurement Range	0% to 100% RH
Humidity Accuracy	±2% RH
Temperature Measurement Range	-40°C to +125°C
Temperature Accuracy	±0.2°C
Response Time (tau63%)	8 seconds
Dimensions (L x W)	14 mm x 17 mm
Mounting Hole Diameter	M2 (2 mm)
Mounting Hole PCD	10 mm

Frequently Asked Questions

What is the operating voltage range for the SHTC3 module?

The module is designed to operate from 3.3V to 5V DC. This wide range allows for direct compatibility with most common microcontroller platforms like 5V Arduino boards and 3.3V systems like Raspberry Pi or ESP32 without requiring a logic level shifter.

How do I communicate with this sensor? What is the I2C address?

The sensor uses the standard I2C (Two-Wire Interface) protocol. The 7-bit I2C address for the Sensirion SHTC3 is 0x70 (112 decimal). You will need to connect the SDA and SCL pins to your microcontroller, along with power (VCC) and ground (GND).

Is the sensor calibrated, and what is its accuracy?

Yes, the Sensirion SHTC3 chip is factory calibrated. It provides a typical accuracy of ±2% relative humidity across its 0-100% RH range and ±0.2°C for temperature measurements from -40°C to +125°C. The digital output is fully temperature-compensated.

Can this sensor be used outdoors?

While the sensor chip itself is rated for the wide -40°C to 125°C temperature range, the module PCB is not conformally coated. For outdoor or high-humidity environments, it is recommended to house the module in a protective enclosure that prevents direct water ingress and condensation while allowing air exchange for accurate sensing.