Key facts
- Brand
- AOSONG
- Model
- DHT11
- Category
- sensor
- Industry
- Electronics
- Documents
- 3
- Languages
- ZH · EN
- Last added
- 2026-09-28
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Aosong DHT11 Temperature and Humidity Sensor Product Manual
The document introduces the Aosong DHT11, a composite digital sensor that measures temperature and humidity using a resistive sensing element and an NTC device connected to an 8-bit microcontroller. It details the sensor's applications in HVAC, consumer goods, and automotive industries, highlighting features such as low cost, long-term stability, and digital signal output.
Read onlineAosong DHT11 specifications
| Relative humidity resolution | 16 Bit |
|---|---|
| Temperature resolution | 16 Bit |
| Supply voltage | 3.5 V – 5.5 V DC |
| Supply current (measurement) | 0.3 mA |
Source: Aosong DHT11 Digital Temperature and Humidity Sensor User Manual
All Aosong DHT11 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the recommended supply voltage range for the DHT11 sensor?
The sensor operates from 3.5 V to 5.5 V DC.
From: Aosong DHT11 Digital Temperature and Humidity Sensor User Manual
How many bits are transmitted for each measurement and what do they represent?
A total of 40 bits are sent: 8 bits humidity integer, 8 bits humidity decimal, 8 bits temperature integer, 8 bits temperature decimal, and 8 bits checksum.
From: Aosong DHT11 Digital Temperature and Humidity Sensor User Manual
What is the recommended pull-up resistor value for the DHT11?
A 5.1kΩ pull-up resistor is recommended for short cable lengths of 20 meters.
From: Aosong DHT11 Temperature and Humidity Sensor Product Manual
How long should the host wait before reading data after power-on?
The host must wait at least 1 second after power-on before sending instructions.
From: Aosong DHT11 Temperature and Humidity Sensor Product Manual
What is the relative humidity range of the DHT11?
The relative humidity range is from 5% to 95% RH.
From: Aosong DHT11 Temperature and Humidity Sensor Datasheet
What is the operating temperature range?
The operating temperature range is from -20°C to 60°C.
From: Aosong DHT11 Temperature and Humidity Sensor Datasheet