Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Temperature Range | 0°C to 50°C |
| Humidity Range | 20% to 90% RH |
| Accuracy (Temp) | ±2°C |
| Accuracy (Humidity) | ±5% RH |
| Sampling Period | 1 second |
| Interface | Single-wire digital |
| Compatibility | Arduino, Raspberry Pi, ESP8266 |
| Pin Count | 3 Pins (VCC, DATA, GND) |
| Dimensions | 15mm x 12mm x 7mm |
Anonymous
Mar 28, 2026
Rating: 5/5
Reliable and cheap
Bought five of these for a school project. All of them worked out of the box. The response time is decent, and the single-wire interface saves GPIO pins.
Anonymous
Mar 24, 2026
Rating: 4/5
Good for indoor monitoring
I used this to monitor humidity in my indoor herb garden. It's accurate enough for general purposes, though I wouldn't rely on it for scientific measurements. Easy to integrate.
Anonymous
Mar 23, 2026
Rating: 3/5
Works but slow sampling
The sensor functions as advertised, but remember it has a 1-second sampling limit. If you need faster readings, look at the DHT22. Otherwise, it's fine for basic logging.
Anonymous
Mar 20, 2026
Rating: 4/5
Solid entry-level sensor
Used this for a thermodynamics lab demo. It's not high precision, but it clearly demonstrates temperature and humidity changes. Documentation online is plentiful which helped a lot.
Anonymous
Mar 17, 2026
Rating: 5/5
Great addition to Home Assistant
Integrated this easily into my Home Assistant dashboard using an ESP32. Readings are stable and consistent. The module form factor is compact and fits well in small enclosures.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for beginner projects
This DHT11 module works flawlessly with my Raspberry Pi setup. The wiring was straightforward, and the library examples got me reading data in minutes. Great value for the price.
Q: Is this sensor waterproof?
A: No, the DHT11 module is not waterproof. It should only be used in dry, indoor environments or protected with a breathable enclosure if used outdoors.
Q: What is the maximum cable length recommended for the data pin?
A: For reliable signal transmission, we recommend keeping the cable length under 20 meters. Using a pull-up resistor may be necessary for longer distances.
Q: Does this come with a pull-up resistor installed?
A: Yes, most KY-015 style modules include an onboard pull-up resistor, so you can connect it directly to your microcontroller without additional components.
Q: Can this sensor be used directly with 5V Arduino boards?
A: Yes, the DHT11 module operates within a 3.3V to 5V range, making it fully compatible with standard 5V Arduino boards like the Uno and Mega.
Q: How often can I read data from this sensor?
A: The DHT11 has a sampling rate of 1Hz, meaning you can request new data once every second. Reading faster may result in duplicate or null values.
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