Features:

  • DHT11 digital temperature and humidity sensor is a digital signal output with a calibrated temperature and humidity combined sensor.
  • It uses a dedicated digital modules and acquisition of temperature and humidity sensor technology to ensure that products with high reliability and excellent long term stability.
  • Sensor consists of a resistive element and a sense of wet NTC temperature measurement devices, and with a high-performance 8-bit microcontroller connected.
  • The product has excellent quality, fast response, anti-interference ability, high cost and other advantages.
  • The single-wire wiring scheme makes it easy to be integrated to other applications.And the simple communication protocol greatly reduces the programming effort required.
DHT11 at a great price

Just as describedDHT11's. They are static bagged individually with a jumper wire.Solder work seems great, and they report temperature and humidity accurately as far as I can tell (if they are giving wrong values, they are at least giving the same wrong value). My only complaint is the jumper wires are "double female" and a female-male cable would have made it easier to hook to an Arduino/bread board. Which isn't a serious enough of an issue to stop me from giving this 5 stars. If you want use these on Arduino, you'll need to install a DHT library (or use an IDE with one installed. Or write your own.)

They work

Not as accurate as the DHT22, but I needed a couple and precision wasn't a must.

Very nice sensors

Tested all 5 DHT11 modules and all seemed to work well. All the soldering looked good, each module was in it's own antistatic bag, packaged well and came on time. If I need more of these later I would order them again.

Reliable, Cheap and Great for general purpose, not super accurate

I'm not at all impressed with how accurate these are, BUT the readings seem very stable over hours, days so I'm happy. I do like the built-in resistor, that saved me some solder work. I use them to monitor temp and humidity in a mealworm farm. Their not-great accuracy combined with their small range makes them just not ideal for anything that needs, well, 1-degree accuracy or range to 150 or 180 degrees, but at this price they are absolutely perfect for general purpose, non-critical applications. Accurately described by the vendor, shipped fast, packaged well, and a good component overall- That's worth 5 stars for me.

Temp & Humidity in a small device

Small little device that provides both Temperature and Humidity. I've tested this next to a Dallas DS18b20 and they are both within 1 degree of each other. Which is off I do not know, but they are "close enough" for me.

Good for hobby and experimentation

For the price, these are a good for experimenting and non-critical measurements with Arduino. I used the DHT.h library and sketch examples from GitHub with a UNO and NANO. It also requires a 10k pull-up resister when connected to the selected digital pin on the Arduino. When compared, the five sensors do vary up to 2 degrees F between units.

Great buy!

Great price for a good product. The sensors were all reading the same temperature and were usually not off by more than 1 degree Celsius. I like that the pins were labeled since they are not always the same. The included wires are a thoughtful bonus. Highly recommend!

Checked Calibration

Yes I did. I have calibrated Humidity and Temperature instruments for a long time. The old fashioned way. They check out to 2% or better. Good enough for home use or any where else. Used to work for a Public Electric Utility as a maintenance electrician. The old fashioned way never failed. No need for all that high priced test equipment. These are nice little units.

As Advertised

What can one say in a review about a humble Temp/Humidity? The package arrived on time; the sensors are individually packaged in one-time tear-open bags that are semi-transparent so you can examine the contents without breaking the seal. Each one includes three female/female (~6") cables, and all are packaged in a reusable sealable bag. The supplied wires are of different colors - I got a couple black/white/white sets; 2 yellow/green/blue; and one purple/white/white set. Of the five sensors, three of them were mounted to the PCB nice and straight; the other two were slightly angled. Functionally this should be an issue (I've not tested all five yet), but for those of us that are a little OCD it's a minor annoyance. Since the sensors are attached to the PCB by only the power/data/ground pins, they stand off from the PCB slightly, so it's important that you pinch the sensor and PCB together firmly when you're mounting the wires or pressing it into a breadboard. The pins are spaced properly to fit into a standard breadboard.

Works as advertised and the libraries were easy to find and use

Im using this DHT11 with a ESP-12E to monitor moisture levels in my basement. Works as advertised and the libraries were easy to find and use.

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