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SHT31 Digital Temperature & Humidity Sensor — High Accuracy I2C
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Rs.2,000.00
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SHT31 Digital Temperature & Humidity Sensor — High Accuracy I2C
The SHT31 from Sensirion is a premium digital temperature and humidity sensor offering significantly higher accuracy than DHT11/DHT21 sensors. With ±0.3°C temperature accuracy and ±2% RH humidity accuracy over a wide range, it's the sensor of choice for precision environmental monitoring, medical devices, and industrial applications. It communicates over I2C, making integration with Arduino, ESP32, and STM32 straightforward.
Technical Specifications
| Parameter | Value |
|---|---|
| IC | Sensirion SHT31 |
| Supply Voltage | 2.4V – 5.5V DC |
| Interface | I2C |
| I2C Address | 0x44 or 0x45 (selectable) |
| Temperature Range | -40°C to +125°C |
| Temperature Accuracy | ±0.3°C (typical) |
| Humidity Range | 0% – 100% RH |
| Humidity Accuracy | ±2% RH (typical) |
| Resolution | 0.015°C / 0.01% RH (16-bit) |
| Response Time | <8 seconds (humidity) |
Pinout
| Pin | Name | Description |
|---|---|---|
| VCC | Power | 2.4V – 5.5V Supply |
| GND | Ground | Ground |
| SCL | Clock | I2C Clock Line |
| SDA | Data | I2C Data Line |
| ADDR | Address | I2C address select (GND=0x44, VCC=0x45) |
| ALERT | Alert | Interrupt output for threshold alerts |
Key Features
- Industry-leading accuracy: ±0.3°C temperature, ±2% RH humidity
- Wide temperature range: -40°C to +125°C
- 16-bit resolution for both temperature and humidity
- I2C interface with selectable address — use two sensors on one bus
- Built-in alert pin for threshold-based interrupts
- Compatible with Arduino, ESP32, STM32, Raspberry Pi
Applications
- Precision weather and environmental monitoring
- Medical and pharmaceutical storage monitoring
- HVAC and building automation systems
- Industrial process control and cleanrooms
- Cold chain and food safety monitoring