I've tried many different boards to get a solid connection through walls, floors, etc. This is the best I've found. Use them as outdoor sensors and sneak into the garage through three walls.
HiLetgo® NRF24L01 Wireless Transceiver Compatible
3 Review
4pcs MakerFocus ESP8266 ESP-01 WiFi Transceiver Receiver Module with 1MB SPI Flash, DC3.0-3.6V IoT WiFi Module Board, Compatible with Arduino
6 Review
🔌 5pcs Songhe ESP8266 ESP-12F WiFi Serial Module Board for Arduino, Wireless Transceiver Remote Port Network Development Board
3 Review
📡 MakerFocus 5pcs NRF24L01+ Adapter ESP8266 ESP-01 Adapter Module for Wireless Transceiver Module and WiFi Module: A Comprehensive Solution
5 Review
🔌 uni USB C Hub with Ethernet Adapter, 4K HDMI, Gigabit Ethernet, and 3 USB 3.0 Ports for MacBook Pro, iPad Pro, XPS
11 Review
UGREEN USB 3.0 Ethernet Adapter Hub with RJ45: Fast Gigabit Ethernet Converter, 3 Ports USB 3.0 Hub Compatible for MacBook, iMac, Surface Pro, Chromebook, Laptop, PC
11 Review
🔌 StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
4 Review
HB-UMLS Sabrent USB 2.0 Hub with 4 Ports and LED Power Switches for Each Port
12 Review