Temperature and humidity sensor DHT21 (AM2301) in case

Index: MOD-01884 EAN: 5904422373269

Temperature and humidity sensor with a digital, single-wired interface. Measuring range: temperature -40 to 80 °C, humidity 0 to 100 % RH. Powered with voltage in the range of: 3.3 V to 5.5 V.

Temperature and humidity sensor DHT21 (AM2301) in case
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Manufacturer: OEM

Czujnik temperatury i wilgotności powietrza AM2301Parameters:

  • Model: DHT21 / AM2301
  • Supply voltage: 3.3 V to 5.5 V
  • Average current consumption: 1.5 mA
  • Dimensions: 28 x 22 x 5 mm
  • Temperature
    • Measurement range: -40 to +80 °C
    • Resolution: 0.1 °C
    • Accuracy: +/- 0.5 °C
    • Response time: about 2 seconds
  • Humidity:
    • Measuring range: 0 - 100 % RH
    • Resolution: 0.1 % RH*
    • Accuracy ±3% RH* (at 25 °C)
    • Range of measurement: about 2 seconds


*RH- relative humidity is expressed in percents. Is the ratio of actual humidity in the air to its maximum number that air can keep at a given temperature.



Temperature and humidity sensor in closed plastic case. The system can be controlled using a microcontroller or any commissioning set, for example,Arduino. The leads are wires, on which you can install any connectors or solder the wires directly to the base board. Before using, you need to see thedocumentation.


The product is compatible with Arduino and Raspberry Pi

Library and scheme of connection with Arduino can be found atthis address.

User guide for Arduino can be found onour website.

An example of using with the Raspberry Pi is on the blogPicoBoard.pl.


Example of connection with microcontroller

The scheme represents the simplest way of connecting the system with any microcontroller using the single-wired interface.


VDD - supply voltage, DATA - data line with lifted resistor 1 k Ohm, GND - chassis ground of system.



Interface Digital I / O
Sensor - Temperature to 80 °C
Sensor - Temperature accuracy +/- 0.5 °C
Sensor - Temperature from -40 °C - 120 °C
Test 3
Package width 6 cm
Package height 2 cm
Package depth 9 cm
Package weight 0.015 kg

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Temperature and humidity sensor DHT21 (AM2301) in case


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Artur U. 08.06.2022 Confirmed purchase Translated review
Works perfectly.
Mirosław K. 06.05.2021 Confirmed purchase Translated review
and what to write here is a sensor like a sensor
Michał 06.12.2022 Confirmed purchase
Przemyslaw 21.09.2022 Confirmed purchase

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