# Gravity: DHT20 Temperature & Humidity Sensor for Arduino

**Type:** Product page · **SKU:** SEN0497 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-dht20-temperature-humidity-sensor-for-arduino.html ([markdown](https://core-electronics.com.au/gravity-dht20-temperature-humidity-sensor-for-arduino.html.md))

DHT11 upgraded version, data accuracy, stability, response speed, measurement range are greatly improved up...

## Pricing

- **Price:** $12.40 (inc GST) — $11.27 AUD, exc GST
- **Quantity discounts:** 6+ $10.71 (exc GST) · 12+ $10.25 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 90 more in 8–12 days.

## Description

The DHT20 temperature & humidity sensor is the **newly upgraded version of the** [**DHT11**.](https://www.dfrobot.com/product-174.html)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](https://www.dfrobot.com/category-64.html) 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.

**![](https://core-electronics.com.au/attachments/localcontent/Application01_83799b9d9f9.jpg)**

**Application**

**Selection Guide**|  | **[Gravity: DHT11 Temperature & Humidity Sensor](https://www.dfrobot.com/product-174.html)** | **[Gravity: DHT22 Temperature & Humidity Sensor](https://www.dfrobot.com/product-1102.html)** | **[Gravity: DHT2](https://www.dfrobot.com/product-2391.html)[0](https://www.dfrobot.com/product-2391.html)[ ](https://www.dfrobot.com/product-2391.html)[Temperature & Humidity Sensor](https://www.dfrobot.com/product-2391.html)** |
|---|---|---|---|
| **SKU** | [DFR0067](https://www.dfrobot.com/product-174.html) | [SEN0137](https://www.dfrobot.com/product-1102.html) | [SEN0497](https://www.dfrobot.com/product-2391.html) |
| **Communication Method** | One wire | One wire | I2C |
| **Operating Voltage** | 3.3-5V | 5V | 3.3-5V |
| **Temperature range ± error** | 0~+50 ± 2 °C | -40~+80 ± 0.5°C | -40~+80 ± 0.5°C |
| **Humidity range ± error** | 20~90% ± 5%RH | 0~100% ± 2%RH | 0~100% ± 3%RH |
|  | Classic temperature and humidity sensor, low price, suitable for designs with low accuracy requirements | High-precision temperature and humidity sensor, high price, high detection range and accuracy | High-precision temperature and humidity sensor, DHT11 upgrade version, the same price but improved performance, using I2C communication, data is more stable |

###  Features

9. Factory calibration
10. I2C digital output
11. Quick response, strong anti-interference ability
12. Low power, low cost
13. Compatible with mainboards like Arduino, micro:bit, ESP32, Raspberry Pi
14. Compatible with 3.3~5.5V main controller
###  Applications

16. HVAC
17. Automobiles
18. Data loggers
19. Weather stations
20. Home appliances
###  Specification

22. Operating Voltage: 3.3V ~ 5.5V DC
23. Operating Current: <1mA
24. Output Signal: I2C (0×38)
25. Temperature Range: -40 ~ +80°C ±0.5°C
26. Humidity Range: 0~100%RH ±3%RH (25°C)
27. Resolution: 0.01°C, 0.024%RH
28. Storage Condition: 10°C-50°C, 20-60%RH
29. Board Dimension: 22\*33 mm/0.87\*1.30”
30. Mounting Hole Size: Inner diameter 3.1mm (0.13”)/Outer diameter 6 mm (0.24”)
  **Documents**32. [Product wiki](https://wiki.dfrobot.com/Gravity_I2C_Temperature_Humidity_Sensor_DHT20_SKU_SEN0497)
###  Parts List

34. Temperature and Humidity Sensor x1
35. Gravity-4Pin I2C Sensor Connector (30cm) x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_2448.jpg)