Gravity: AHT20 Temperature and Humidity Sensor
In stock, ships same business day if ordered before 2PM
Fastest delivery: Tomorrow*
Disclaimer:
The shipping address needs to be in the AusPost next day network
and eParcel Express is chosen during checkout. On rare occasions, orders may be delayed by up to
one business day due to AusPost pickup timings or for order verifications.
Quantity Discounts:
- 10-25 $7.01 (exc GST)
- 25+ $6.86 (exc GST)
The AHT20 is a high-precision but low-cost temperature and humidity sensor, which is equipped with an improved MEMS semiconductor capacitive humidity sensor element. It features standard I2C interface and a wide voltage supply of 2V-5V. And with the simple peripheral circuit, it performs stably even in harsh environments in the measuring range of -40°C ~ +85°C.
Connection Diagram
Features
- Digital output, I2C interface
- Excellent long-term stability
- Fast response, strong anti-interference, and adaptability
- Gravity interface, simple wiring, no soldering required
Applications
- HVAC
- Dehumidifier
- Testing Equipment
- Consumer Appliances
- Automobiles
- Automatic Control
- Data Loggers
- Weather Control
Specification
Module Parameters
- Operating Voltage: DC2V-5V
- Output Signal: I2C
- I2C Address: 0x38
- Dimension: 30mm×20.5mm/1.18×0.81"
AHT20 Chip Parameters
Relative Humidity
- Resolution: 0.024 %RH
- Accuracy Error: ±2 %RH
- Repeatability: ±0.1 %RH
- Hysteresis: ±1 %RH
- Non-linear: ±0.1 %RH
- Response Time: 8S
- Operating Range: 0~100 %RH
- Long-term Drift: <0.5 %RH/yr
Temperature
- Resolution: 0.01°C
- Accuracy Error: ±0.3°C
- Repeatability: ±0.1°C
- Hysteresis: ±0.1°C
- Response Time: minimum 5S, maximum 30S
- Operating Range: -40°C ~ 85°C
- Long-term Drift: <0.04°C/yr
Documents
Parts List
- Gravity: AHT20 Temperature and Humidity Sensor × 1
- Gravity-4P I2C/UART Sensor Cable × 1
Exact shipping can be calculated on the view cart page (no login required).
Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).
We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):
- $3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
- $7+ for Standard Post (typically 6+ business days, tracked)
- $11+ for Express Post (typically 2+ business days, tracked)
- Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.
Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.
Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.
International Orders - the following rates are for New Zealand and will vary for other countries:
- $12+ for Pack and Track (3+ days, tracked)
- $16+ for Express International (2-5 days, tracked)
If you order lots of gear, the postage amount will increase based on the weight of your order.
Our physical address (here's a PDF which includes other key business details):
Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia
Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.
Have a product question? We're here to help!
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