GY-21 HTU21 moisture and temperature sensor

GY-21 HTU21 moisture and temperature sensor

RRP: $9.00
Price: $8
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  • ✔️ Durable module for measuring temperature and humidity
  • ✔️ For ESP, Arduino and Raspberry
  • ✔️ Ideal for weather stations
  • ✔️ Of course, when you buy through AZDelivery, you will also receive fully automatic and guaranteed invoice including VAT and according to German standards, as well as usual high ⭐⭐⭐⭐⭐ AZ-Delivery quality and fast delivery from Germany by buying from AZ-Delivery Vertriebs GmbH!
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$8 $9

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(Including Tax)

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Product Details

Ean 4260581552619
Product Name GY-21 Temperatur und Luftfeuchte Sensor Modul
Number of Items 1
Size 12,7x10,3x3,5mm
Weight 0,010kg

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Product Description

Our AZDelivery GY-21 is a reliable and durable module for detecting temperature and humidity values. 

Thanks to I2C interface, the sensor is compatible with most 3.3V and 5V microcontrollers like Atmega328p, ESP and Raspberry and programming is convenient to implement.

In addition, free libraries are available for easy use with Arduinos and Raspberrys.


The sensor breakout is equipped with the original HTU21D chip and is a real alternative to the well-known DHT22. 

✔️Widely used module, popular in the community.
✔️Finds use in many weather stations
✔️Typical measurement accuracy temperature: +/-1°C deviation between -30°C and 90°C
✔️Typical measurement accuracy humidity: +/-2% RL between 5% and 95% RL

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