This Key Fob Remote and Receiver PCB can be used to control your custom projects from up to 50 feet away.
Wireless Remote Controller for 12V Actuators - RobotShop
This Key Fob Remote and Receiver PCB can be used to control your custom projects from up to 50 feet away.
Key Fob Remote and Receiver PCB - Parallax
Building a Simple RFID Door Access Controller
Key FOB Remote more info - 315Mhz vs 433Mhz — Parallax Forums
USB RFID Reader -125kHz - RobotShop
Build Quiz Game Based on Key Fob - Circuit Cellar
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Building a Simple RFID Door Access Controller
Dinosaur Electronics 24VAC FAN BOARD UIB 24 VAC Fan Control Board for