DHT11 Temperature-Humidity Sensor - Waveshare Wiki
Amazon.com: HiLetgo 5pcs DHT11 Temperature Humidity Sensor Module Digital Temperature Humidity Sensor 3.3V-5V Humidity Measure Range 20%-95% Temperature Measure Range 0-50℃ Celsius with Dupont Wires : Appliances
20pcs DHT11 Temperature and Humidity Sensor Module Robotdyn for Arduino - products that work with official for Arduino boards