Description
Reviews
| 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 |
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.
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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