DFRobot - Gravity: DHT20 Temperature & Humidity Sensor for Arduino

The DHT20 temperature & humidity sensor is the newly upgraded version of the DHT11. Data accuracy, stability, response speed, measurement range are greatly improved up.

DHT20 is a brand new ASIC dedicated chip, an improved MEMS semiconductor capacitive humidity sensor element and a standard on-chip temperature element. All sensors are factory calibrated and characterized by low power, high precision & stability, fast response, and strong anti-interference. Moreover, the DHT20 performance parameters of accuracy, power supply voltage, measurement range and response time have been enhanced greatly over the previous generation, making it more cost-effective.

Besides that, the DHT20 temperature & humidity sensor employs I2C digital output protocol, which is very suitable for HVAC, automobiles, data loggers, weather stations, home appliances, and other related temperature and humidity detection and controlled areas.

Application

Selection Guide

Product Name

Gravity: DHT11 Temperature & Humidity Sensor For Arduino

Gravity: DHT20 Temperature & Humidity Sensor for Arduino

Gravity: DHT22 Temperature & Humidity Sensor

Figure

SKU

DFR0067

SEN0497

SEN0137

Communication Method

One wire

I2C

One wire

Operating Voltage

3.3-5V

3.3-5V

5V

Temperature range ± error

0~+50 ± 2 ℃

-40~+80 ± 0.5℃

-40~+80 ± 0.5℃

Humidity range ± error

20~90% ± 5%RH

0~100% ± 3%RH

0~100% ± 2%RH

Introduction

Classic temperature and humidity sensor, low price, suitable for designs with low accuracy requirements

High-precision temperature and humidity sensor, DHT11 upgrade version, the same price but improved performance, using I2C communication, data is more stable

High-precision temperature and humidity sensor, high price, high detection range and accuracy

Add to Cart

• Factory calibration
• I2C digital output
• Quick response, strong anti-interference ability
• Low power, low cost
• Compatible with mainboards like Arduino, micro:bit, ESP32, Raspberry Pi
• Compatible with 3.3~5.5V main controller

• HVAC
• Automobiles
• Data loggers
• Weather stations
• Home appliances

• Operating Voltage: 3.3V ~ 5.5V DC
• Operating Current: ＜1mA
• Output Signal: I2C (0×38)
• Temperature Range: -40 ~ +80°C ±0.5°C
• Humidity Range: 0~100%RH ±3%RH (25°C)
• Resolution: 0.01℃, 0.024%RH
• Storage Condition: 10℃-50℃, 20-60%RH
• Board Dimension: 22*33 mm/0.87*1.30”
• Mounting Hole Size: Inner diameter 3.1mm (0.13”)/Outer diameter 6 mm (0.24”)

• Temperature and Humidity Sensor x1
• Gravity-4Pin I2C Sensor Connector (30cm) x1