ElectronicsEgypt
AHT21B Digital Temperature and Humidity Sensor Module

AHT21B Digital Temperature and Humidity Sensor Module

Part number: AHT21BBrand: AosongTemperature & Humidity Sensors

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75 EGP

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Prices updated: 12 Oct 2026

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Lowest price recorded: 75 EGP

About this product

The AHT21B is a compact digital module that measures ambient temperature and relative humidity. It communicates over I2C, which makes it suitable for embedded systems, weather stations and IoT devices built with Arduino, ESP32 or Raspberry Pi.

Specifications

Measured parameters
Temperature and relative humidity
Interface
I2C
Temperature range
-40 °C to 85 °C
Humidity range
0 to 100 %RH
I2C address
0x38

Frequently asked questions

What is the price of AHT21B Digital Temperature and Humidity Sensor Module in Egypt?

AHT21B Digital Temperature and Humidity Sensor Module currently costs 75 EGP in Egypt.

Where can I buy AHT21B Digital Temperature and Humidity Sensor Module in Egypt?

AHT21B Digital Temperature and Humidity Sensor Module is available from Makers Electronics. Compare the offers above to find the best price.

How do I wire it to an Arduino or ESP32?

Connect VCC to the supply, GND to ground, SDA to the SDA pin and SCL to the SCL pin of your board. Check whether the module already includes I2C pull-up resistors, and use the supply voltage the module specifies.

Can it share the I2C bus with other sensors?

Yes. The AHT21 uses I2C address 0x38, so it can share the bus with other sensors as long as their addresses are different.