> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 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.

## How to buy

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- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## 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)