Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	DHT11
Output Signal	Digital Single-wire
Operating Voltage	3V to 5.5V DC
Temperature Range	0°C to 50°C
Humidity Range	20% to 90% RH
Temperature Accuracy	±2°C
Humidity Accuracy	±5% RH
Sampling Period	1 second
Connector Type	3-Pin Dupont Header
Compatible Boards	Arduino, Raspberry Pi, ESP8266

6 reviews

Anonymous

Mar 26, 2026

Rating: 5/5

Reliable and cheap

Bought five of these for a school project. All of them worked out of the box. The digital signal output simplifies the wiring significantly compared to analog sensors.

Anonymous

Mar 24, 2026

Rating: 5/5

Perfect for beginner projects

This DHT11 module works flawlessly with my Arduino Uno. The included Dupont lines made connection incredibly easy without needing a breadboard immediately. Readings are consistent for a basic sensor.

Anonymous

Mar 16, 2026

Rating: 3/5

Slow response time

The sensor works, but remember it has a 1-second sampling rate limit. If you need fast real-time data changes, look at the DHT22 instead. For general logging, this is fine.

Anonymous

Mar 12, 2026

Rating: 4/5

Solid performance for the cost

We use these in our makerspace for various student prototypes. They are durable enough to handle being plugged and unplugged repeatedly. Accuracy is acceptable for non-critical applications.

Anonymous

Mar 05, 2026

Rating: 4/5

Good value for indoor monitoring

I used this to monitor humidity in my small greenhouse setup. It's not lab-grade precision, but for the price, it gives me a good idea of when to water or ventilate. Easy to code.

Anonymous

Mar 02, 2026

Rating: 5/5

Great starter sensor

As someone new to electronics, I appreciated the clear pinout and the pre-soldered header. Found plenty of tutorials online that work perfectly with this specific module.

5 FAQ

Q: What library should I use for Arduino?

A: The most popular and reliable library is the 'DHT sensor library' by Adafruit. It supports both DHT11 and DHT22 models and includes example sketches to get you started quickly.

Q: Can I connect this directly to a 3.3V ESP32?

A: Yes, the DHT11 operates within a voltage range of 3V to 5.5V, so it is fully compatible with 3.3V logic boards like the ESP32 and ESP8266 without needing a level shifter.

Q: Why is my humidity reading stuck at 99%?

A: A reading of 99% usually indicates a wiring issue or a faulty sensor. Please check that your data pin is connected correctly and that you have a 10k pull-up resistor between the VCC and Data pins if your module doesn't have one built-in.

Q: Does this come with a protective case?

A: No, this product is sold as a bare PCB module with header pins and Dupont lines. It does not include an enclosure or protective case, but you can easily 3D print one or house it in a project box.

Q: Is this sensor waterproof?

A: No, the DHT11 module is not waterproof. It should only be used in dry, indoor environments. Exposure to water or high condensation may damage the electronic components.

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