Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | DHT11 |
| Operating Voltage | 3.3V - 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 |
| Interface Type | Single-wire Digital |
| Cable Length | 15 cm (3-pin) |
| Compatibility | Arduino, Raspberry Pi, ESP8266 |
Anonymous
Mar 31, 2026
Rating: 4/5
Good for basic monitoring
I used this to monitor humidity in my small greenhouse. It's not laboratory grade, but for the cost, it gives a good general idea of the conditions. Just remember it has a slow sampling rate.
Anonymous
Mar 23, 2026
Rating: 3/5
Decent but limited range
Works well for indoor room temperature, but don't expect it to work outside in freezing temperatures or extreme humidity. Stick to the specs and you will be happy.
Anonymous
Mar 20, 2026
Rating: 5/5
Bulk buy success
Bought ten of these for our workshop class. All of them functioned correctly. The 3-pin connector is sturdy enough for repeated plugging and unplugging on breadboards.
Anonymous
Mar 14, 2026
Rating: 5/5
Reliable and easy to code
Integrated this with an ESP32 for a smart home dashboard. The digital signal is clean and easy to parse. No noise issues compared to analog sensors I've used before.
Anonymous
Mar 11, 2026
Rating: 4/5
Works great with Raspberry Pi
Connected easily to GPIO pins on my Pi 4. Make sure you have the pull-up resistor configured correctly in your code, though many libraries handle this automatically. Solid sensor.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for beginner projects
This DHT11 module worked straight out of the box with my Arduino Uno. The included cable made wiring very simple, and the library examples ran without any issues. Great value for the price.
Q: Does this module come with a pull-up resistor built-in?
A: Yes, the PCB module typically includes a surface-mount pull-up resistor, so you can connect it directly to your microcontroller without adding external components.
Q: Does this work with 3.3V logic levels like the ESP8266?
A: Yes, the DHT11 operates comfortably within the 3.3V to 5.5V range, making it fully compatible with 3.3V boards like the ESP8266 and ESP32 without level shifters.
Q: What is the maximum cable extension length supported?
A: While the included cable is 15cm, the digital signal can generally support extensions up to 20 meters if using high-quality shielded cable, though shorter lengths are recommended for stability.
Q: Can I use this sensor outdoors in the rain?
A: No, the DHT11 is not waterproof or weatherproof. It should only be used in dry, indoor environments or inside a protective enclosure if used outside.
Q: Is there a difference between the white and blue versions of this sensor?
A: The color of the plastic housing usually indicates the manufacturer batch but does not affect performance. Both white and blue DHT11 modules share the same technical specifications.
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