SKU: SENS-3454
📋 GST Invoice Available

Asair DHT20 SIP Temperature & Humidity Sensor -40~+80°C - I2C Interface

₹101.00 (Inclusive of all taxes)
Out of Stock

The Asair DHT20 is a SIP-packaged digital temperature and humidity sensor offering a wide measurement range (-40°C to +80°C, 0-100% RH) with I2C digital output. It is designed for direct integration with 3.3V or 5V microcontroller systems like Arduino, Raspberry Pi, ESP32, and STM32.

Features

  • High-performance digital sensor with dedicated ASIC for stable I2C output.
  • Wide operating voltage range from 2.2V to 5.5V DC for flexible system integration.
  • Factory calibrated with ±0.5°C temperature and ±3% RH humidity accuracy.
  • Excellent long-term stability and quick response in harsh environments.
  • SIP (System-in-Package) construction with ABS housing for robust deployment.

Out of stock

Description

The DHT20 represents a significant upgrade over the popular DHT11, integrating a dedicated ASIC sensor chip, a semiconductor silicon-based capacitive humidity sensing element, and a calibrated on-chip temperature sensor. This design delivers enhanced reliability, improved accuracy, and superior performance stability, especially in high-temperature and high-humidity conditions.

Communicating via a standard I2C interface, the sensor provides fully digital output, simplifying wiring and reducing noise susceptibility compared to analog sensors. Its wide supply voltage compatibility makes it suitable for a broad spectrum of embedded and IoT applications, from portable devices to industrial monitoring systems.

Key Features

  • Fully factory calibrated for immediate, accurate measurement.
  • Standard I2C digital interface for simple microcontroller integration.
  • High-resolution output: 0.01°C for temperature, 0.024% RH for humidity.
  • Robust performance across the full operating range with strong anti-interference capability.
  • Optimized SIP packaging ensures consistent performance and durable construction.
  • Wide operating humidity range from 0% to 100% RH.

Applications

  • HVAC system monitoring and climate control.
  • Environmental data logging for weather stations and IoT devices.
  • Indoor air quality (IAQ) monitoring in smart home systems.
  • Agricultural greenhouse condition monitoring.
  • Industrial process control and equipment condition monitoring.

Technical Specifications

Model NumberDHT20
Sensor TypeTemperature & Humidity
Supply Voltage2.2 to 5.5 VDC
Temperature Range-40°C to +80°C
Humidity Range0% to 100% RH
Temperature Accuracy±0.5°C (at 25°C)
Humidity Accuracy±3% RH (at 25°C)
Temperature Resolution0.01°C
Humidity Resolution0.024% RH
Output InterfaceI2C
Housing MaterialABS

Frequently Asked Questions

What is the communication protocol for the DHT20 sensor?

The DHT20 communicates exclusively via the I2C (Inter-Integrated Circuit) serial protocol. It provides a fully digital output, requiring connection to the SDA (data) and SCL (clock) lines of your microcontroller, along with power and ground. This interface simplifies wiring and offers better noise immunity compared to single-wire or analog sensors.

What is the operating voltage range for the DHT20?

The DHT20 supports a wide supply voltage range from 2.2V to 5.5V DC. This makes it directly compatible with both 3.3V logic systems (like ESP32 or Raspberry Pi) and traditional 5V Arduino boards without requiring a logic level converter, providing significant flexibility in system design.

How accurate is the DHT20 sensor and is calibration required?

The DHT20 is factory calibrated, providing an accuracy of ±0.5°C for temperature and ±3% RH for humidity at 25°C. No user calibration is required for typical applications. Its dedicated ASIC and silicon capacitive sensing element ensure excellent long-term stability, maintaining this accuracy over time and across its specified operating range.

Package Includes

  • 1 x Asair DHT20 SIP Packaged Temperature and Humidity Sensor

Additional Information

Weight 0.03 kg
Dimensions 6 × 7 × 1 cm