The things you will need for this are as follows:
- One Raspberry Pi 3: https://www.amazon.com/Raspberry-Pi-Desktop-Starter-White/dp/B01CI58722
- One breadboard: https://www.amazon.com/Solderless-Breadboard-Circuit-Circboard-Prototyping/dp/B01DDI54II
- One DHT11 sensor: https://www.amazon.com/HiLetgo-Temperature-Humidity-Arduino-Raspberry/dp/B01DKC2GQ0
- Three male-to-female jumper cables: https://www.amazon.com/RGBZONE-120pcs-Multicolored-Dupont-Breadboard/dp/B01M1IEUAF/