# Grove - AHT20 I2C Industrial Grade Temperature and Humidity Sensor

**Type:** Product page · **SKU:** SS101990644 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia)
**Page:** https://core-electronics.com.au/grove-aht20-i2c-industrial-grade-temperature-and-humidity-sensor.html ([markdown](https://core-electronics.com.au/grove-aht20-i2c-industrial-grade-temperature-and-humidity-sensor.html.md))

AHT20 is a new generation of temperature and humidity sensor embedded with a dual-row flat and no-lead SMD package, suitable for the reflow soldering.

## Pricing

- **Price:** $9.05 (inc GST) — $8.23 AUD, exc GST
- **Quantity discounts:** 10+ $7.90 (exc GST) · 25+ $7.65 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 1 today, and up to 50 more in 8–10 days.

## Description

AHT20 is a new generation of temperature and humidity sensor embedded with a dual-row flat and no-lead SMD package, suitable for the reflow soldering. AHT20 is equipped with a newly designed ASIC chip: an improved MEMS semiconductor capacitive humidity sensor, and a standard on-chip temperature sensor. The output is the I2C protocol with the Grove interface.

**Key Features**

- Temperature measurement range -40 ~ 85°C, Humidity measurement range 0 ~ 100% RH
- Digital output, Grove I2C interface
- Excellent long-term stability
- SMD package suitable for reflow soldering
- Quick response and strong anti-interference ability
- Compatible with Arduino
- 4-pin interface reserved

**Description**

AHT20 is a new generation of temperature and humidity sensor embedded with a dual-row flat and no-lead SMD package, suitable for the reflow soldering. AHT20 is equipped with a newly designed ASIC chip: an improved MEMS semiconductor capacitive humidity sensor, and a standard on-chip temperature sensor.

The performance of AHT20 is more stable in harsh environments compared with the previous generation of temperature and humidity sensor such as Grove - Temperature & Humidity Sensor Pro (AM2302/DHT22), as a matter of fact, AHT20 is fittable in most industrial scenarios.

The output is the I2C protocol with the Grove interface. Seeed Studio have developed more than 300 Grove modules, covering a wide range of applications that can fulfill a variety of needs. Just plug and play to get started easily!

**Specification**

- Operating Voltage: DC:2.0-5.5V
- Measuring Range (humidity) 0 ~ 100% RH
- Temperature Range: -40 ~ + 85 ?
- Humidity Accuracy: ± 2% RH (25 ?)
- Temperature Accuracy ± 0.3 ?
- Resolution: Temperature: 0.01 ?, Humidity: 0.024% RH
- Output Interface: Grove I²C Interface
- I2C address: 0x38

**Dimensions**

- 24x20x12(mm)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/s/s/ss101990644-1.jpg)