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5PCs Spring Coil Antenna [433 Mhz] – ElectroDragon
Outdoor Waterproof 433mhz Antenna ultra-long Distance Extender for Garage Remote Control Gate Door Opener Up to 250m - AliExpress
433 Mhz Yagi Antenna
2pcs/set 433 Mhz Spring Antenna For Rf Receiver And Transmitter Module 433mhz Built-in Antennas For Wireless Remote Controls Diy - Remote Control - AliExpress