5pcs DHT11 Temperature and Humidity Sensor Module for Arduino MEGA 2560 AVR PIC Raspberry Pi 2 3 4B (Black)

Pretty good but not for high accuracy projects.Pros:Humidity sensorVery smallSimple wiringEasy to use librariesCons:Very slow to recognize changeAwkward shapeNot very precise

These work great. Bonus: having the pull-up resistor on the board simplifies prototyping. The only downside is that the DHT11 is a pretty slow sensor, so you need to leave some delays() in the code. Overall,however, a great value.

We built an 90 deg F. incubator -- these worked perfect

Very good